Web Apps and Smart Bottles

Elaine1bCoeTie4This is an article for all of you to write.

The web is awash in apps for tracking fluid intake, and kidney stone prevention is all about fluids.

Some smart bottles‘ have arrived on the market. They track what you drink and keep the results on your smartphone. Since some of these are kickstarter efforts there is even an article on Slate about them. Some appear to be finished and rather sleek products. We know nothing about them.

There are apps for sodium intake, calcium intake – We think. The field looks thin for calcium apps.

Low sodium and high calcium diets are important in stone prevention.

We even found one app for preventing kidney stones – see if you can find it.

Elaine looked up phone apps for water tracking and easily found a number of them. Fred looked too, and found the same. How can we know which ones are any good except we ask you to tell us. Likewise for sodium, and calcium, and for the rather pricy smart bottles.

Please comment.

Say which apps you use or have used. What did you think of them? How long did you use them. Would you recommend them? LIkewise for smart bottles. Are they worth the price – do they help you?

About 30,000 people come to this site every month. Please share your experiences.

This Article Will Get Longer as We Get Your Opinions and Experiences

Since we know nothing about these apps and devices, we need to learn, from you. So please help.

A number of comments have come in, either posted as comments or by email. For the latter I have entered the comments with only the first name and avoiding any email identifiers. Thank  you, everyone so far, and we will soon compile a table as promised.

The Score as of April 2

A tally of the results to date.




TOTAL 45 7


No app at all wins by 33 of the 52 comments. Of these 22 were just no app the other 11 were just a jug. The former meant none used, no interest.The latter meant jugs of water, one kind or another, stashed about or planned the night before in innumerable combinations.

Each of the other devices had a tiny scatter of love or hate or both as the table shows.

This is not science: Some people were hard to score and I left them out – could not tell if they used anything or not.

Dislike meant either not good or good for a while then discarded. Liked means used, valuable, and in play for a significant time.

There are so many people on this site every month, I hope more stop by and comment.

So far I would not buy stock in special water bottle companies, but might want to try out a line of nice colored water jugs – come to think of it the web is saturated with them!

Regards, Elaine and Fred

77 Responses to “Web Apps and Smart Bottles”

  1. Pat

    I use a set of four spreadsheets that I’ve created to keep track of my diet, blood pressure (I’m hypertensive), and urine volume. And yes, I am a retired data cruncher, so it all comes naturally to me. I understand that many people, perhaps most, would find my system onerous. It doesn’t make for very good cocktail party conversation apparently, judging from the groans . . . But for me, it’s more fun than a Sudoku puzzle. Perhaps some app designer could put together a similar tracking system that would be automatic for the interested but less-mathematically inclined. Or maybe someone already has! My Fitness Pal sounds interesting . . .

    Here are the gruesome details of my system:

    One spreadsheet is my database. It’s a list of foods with information collected from nutrition facts labels: calories per serving, and how much sodium, calcium, fat, protein, carbohydrates, and fiber a serving contains. For fresh foods, I can usually find estimates of the values I need from a website like healthaliciousness.com. When I eat a new food, I add a new row to the list. I’ll probably add a column to it for oxalate now that I have a good source of information on that.

    Another spreadsheet is my daily food intake. I use it to tabulate how much of each nutrient I’ve eaten each day, by copying rows from the food list into it. It’s also handy for planning meals to make sure I stay on target. I use “what if” scenarios to test out different combinations of foods. At the end of the day, I copy the row of daily totals into the monthly spreadsheet.

    The monthly spreadsheet is a list of daily nutrient totals, and it also has columns for blood pressure readings and my urine volume for the day. I keep track of UV/day with a graduated hat and a notepad in the bathroom. I drink bottled water and that helps to keep me on schedule with my fluid intake, but I don’t track it, because it’s the urine volume that matters more. I can add readings of my weight too, and see how they correlate with changes in my calorie intake.

    At the end of the month, the entire monthly spreadsheet gets copied into an archival spreadsheet that’s organized by year. I’ve been using this system since 2008. I formed seven stones requiring shockwave lithotripsy between 1998 and 2008; only one new stone since I started using this system. Works pretty well for me!

    I can do better though. I am making dietary changes now based on what I’m learning from your website. My next 24-hr urine is due in 2 ½ months, and I can’t wait to see how my urine chemistry changes in response to my improved diet. Bless you!, bless you!, bless you! for making all this information so clear and accessible!

  2. Jim C

    I just drink until I am full. Some days, very few of those, are under a gallon.. most of the time I am over that.. but, I cut back a smidge when I have that bloated look and feel.. I know im a bit today.. odd I had a good workout yesterday.. Edging the lawn. mowing the lawn, fertilizing the lawn.. picking up the Dogs natural fertilizer as well. I put down over a gallon of Lemonade, Water.. and milk (2%) Today.. 3 cups of coffee.. and so far 4 glasses of the 20oz water jug, a orange juice.. and a milk.. Nut I feel it

  3. Anne

    Waterlogged is a free app that reminds you to drink according to the schedule and amount you set by making a waterfall sound which increases in intensity until you tap the screen. (It shuts itself off in about a minute regardless.) The graphic is a large bottle that fills as you enter amounts consumed. You can set it to no reminders (just use it to log intake), or remind you to drink by interval (X oz every X hours), or by “smart” reminder when you are behind pace to consume your daily goal (this is what I use). The first few days it annoyed me to no end (well, that IS it’s job). I’m ok drinking in the morning and at night but much less so during the day when I am running around so I guess I really do need the nagging. Funny, the waterfall sound mystifies the people around you. Colleagues say they hear it from other offices on a subconscious level and feel the need to pee. My dentist stopped my exam the other day and looked under his sink as he thought a pipe had burst.

    This app can sync with My Fitness Pal where I track sodium and calcium etc. I wish MFP could track oxalates. I use the Oxalator app which does not show specific oxalate counts but only content categories (low, medium, high) but is better than nothing when shopping or dining out.

  4. Ron

    Last month, I was diagnosed with gall bladder stones. Doctor advised me to use an Android app to monitor water intake. I found this great article http://bestappsguru.com/best-water-drinking-app/ where I found the details on Water Time Pro app. I have the app and guess what? One of the stones passed out in the urine.

  5. Michele Lewris

    I’ve been struggling with calcium oxalate stones since my 20’s and my daughter has had stones since she’s 9. I am now in my mid 50’s. My issues were high oxalate and also high sodium. I’ve greatly reduced my sodium and while I’ve cut out the nuts for the most part, the chocolate has been harder. I do drink milk when I have chocolate to try and balance the oxalate in my intestines. My water consumption has always been good, but I have really increased it as of late. I drink 16oz every 2 hours and half of that is lemon water. When I get up in the morning, the first thing I do is drink 16 oz. I follow that about an hour later with 32 oz of lemon water and drink my final 16 oz before noon. Then I continue with 16 oz every 2 hours, slowing down at night and my last full glass is at 9pm or 10pm. I get up 2 times during the night at which time I don’t drink. I need sleep. I always have to be near a bathroom and it isn’t fun but I’ve learned to adapt. It’s funny, when I was younger, I never wanted to go into a public bathroom, now I run to them. I was drinking more Crystal Light before but I have cut it out due to the yellow dye and also the aspartame.

    • Fredric Coe, MD

      Hi Michelle, Thank you for sharing your experiences. Might I ask how high that oxalate is? Usually in familial stones it is high urine calcium that is the problem. Likewise, sodium intake would have no relevance to urine oxalate but only urine calcium. Regards, Fred Coe

  6. ernie

    Dr. Coe
    Does it matter the type of water that one drinks? Is water with mineral for taste good?

  7. Carla

    I really like the Add Water app. I have it on my iPhone. Use it several times a week just to make sure I am hitting my goal. I tried a few other apps, but found this one proved to be less time consuming. I like that it notes how many ounces I need to drink to meet my goal for the day right on the app icon. It automatically updates each time I add my fluid intake.

  8. Stephanie

    I used to drink a ton of water all the time without really thinking about it. Then I started getting kidney stones and someone told me I HAD to start drinking more water and my water intake became less stable and went down. I was always stressing out about not drinking enough water and the problem actually got worse for me. I have continued to get kidney stones since my first stone in 2011 so I knew I needed to do something to ensure that I was getting my 4 liters of water in each day. Not just some of the time, not when I felt like it, ALL the time.

    I tried using apps like My fitness pal and Waterlogged but didn’t find much success with those. What finally worked for me was the Thermos bottle with smart lid. This reusable, rechargeable bottle has a sensor inside that tracks how much water is in the bottle. It has a smartphone app that accompanies it. You can customize your own daily goal and see your progress. It also sends you reminders when you are off pace from reaching your daily goal.

    What I like: well designed 24 ounce bottle with locking lid, bottle stays charged (connected to app) for long period of time without constant recharging, I don’t have to log my water- I just drink and it tracks it for me, the app tracks the activity throughout the day and for each bottle which helped to identify times that I was not getting enough water even when I was meeting my daily goal, found the app to be very fun and motivating- you just take a sip and see it show up which made it sort of a fun competitive game for me.

    What I don’t like: the lid is not dishwasher safe because of the charging plug in, wish it was a larger bottle for less refills, a bit pricey at $59.99 (but in reality totally worth it).

    Overall I would recommend this product to anyone that needs to get a handle on their water intake. It has helped me become more consistent and aware of times in my day where I need to put in more effort to drinking more water. If anyone has questions I would also be happy to answer them.

  9. Fredric Coe, MD

    Megan sent this by email: No interest.

  10. Fredric Coe, MD

    Harvey sent this by email: Thank you for the interesting and important articles and discussions that you have been sending out. I have had 2 Kidney stone attacks in the the last 25 years and none since i became a patient at the kidney stone clinic more than 15 years ago. I know nothing about web apps and smart bottles and because I have not had any stones in so many years I have no interest.

  11. Fredric Coe, MD

    Kim sent this by email: I was very curious about people’s responses and would be definitely be interested in people’s suggestions or input

  12. Fredric Coe, MD

    By email – Still interested!
    Just don’t have anything to contribute.

  13. Fredric Coe, MD

    Robert sent this by email: Don’t know much about “smart” bottles but do swear by a low-tech alternative.
    Never did like water straight.
    Bought a clear plastic water bottle which holds 28 oz of water but also has an insert in which you can place fruit, cinnamon sticks, etc. Mine is by “Young and More.” They even have recipes you can try to jazz up the water. There are many other bottles like this on the market. Works for me.

  14. Fredric Coe, MD

    Michele sent this by email: Not interested in web apps. I just had my 5th lithotripsy for a one cm stone and another 9mm stone sitting right next to it. I will have it analyzed but I believe it’s calcium oxalate like the others. I passed some large 3mm fragments along with smaller ones without a stent. Not much pain. Will have a kub done in a few weeks and probably see a nephrologist for 24 hour urine and any help she give. This obviously isn’t my first rodeo and I’ve been dealing with this since I’m in my late 20’s and now mid 50’s. I don’t believe I keep making new stones but they grow from the nidus left from small fragments. I have however, incorporated some good solid lifestyle changes that I read about on your site and others which I’ve never done before. I don’t have a problem with citrate as far as my last 24 hour urine. My issue seems to be with sodium, oxalate and low urine ph. It would seem I’d have a problem with uric acid stones but not the case. I’ve started drinking lemon water daily mixed with crystal light, (not crazy about the aspartame and yellow dye.) Also, gone on a much lower sodium diet, cut out all the protein and nuts and trying to lose weight as I’m diabetic as well. Taking Theralith xr and when checking ph of my urine it has increased from 5 to 6 on urine strip. I already drink about 14 – 16 glasses of water per day. Hoping for the best and any advice is always appreciated. Love your website and got so much info there.

  15. Fredric Coe, MD

    Brenda sent this by email: Not interested

  16. Fredric Coe, MD

    Francis sent this email: Smart bottles are interesting.

  17. Fredric Coe, MD

    I use my fitness pal because you can set your sodium intake and it let’s you know when you’re getting close to your limit. You can also reorganize it for your diet so you get less carbs, more proteins, etc. I personally don’t usually track my water because I drink a lot of water but my fitness pal also let’s you do that.



  18. Fredric Coe, MD

    Bob sent this by email: not of interest

  19. Fredric Coe, MD

    Bill sent this by email: Fred

    I also use my fitness pal to track my intakes. Seems to work good. I monitor my water intake, the old way, I have 4-6 16 oz bottles of water with me daily and I know I’m good when there empty!!

    Your articles are fantastic and I’m honored to be on your mailing list. Thank you

  20. Fredric Coe, MD

    Sent by email: I don’t have a Smart Bottle. I did download a water app, but promptly deleted it after getting TONS of junk e-mail.

    I just use a 64 oz bottle and make sure I drink at least two per day.

    Thank you so much for your help and interest!!


  21. Fredric Coe, MD

    Barbara sent this by email: I don’t use an app because I don’t know of one that exists but I would be interested in using one if one were developed. Thanks

  22. Fredric Coe, MD

    Dear Dr. Coe & Ms. Worcester,

    In the past I’ve used the App “Lose It” that monitors calories and nutrition intake but it has not been helpful monitoring water and sodium intake.

    Having read your e-mail, it has inspired me to seek out these Apps to monitor my water and sodium intake. Since I try to drink 4 Liters of water a day per your request, which is not always easy, I found keeping a liter pitcher of water at room temperature and drinking from a glass instead of a water bottle allows me to drink more volume much easier.

    I typically will use these Apps for several months until my eating, drinking and fitness become so routine that I don’t need to keep monitoring. When I find myself off-track, I go back to the app. as a motivator to keep me consistent.


  23. Fredric Coe, MD

    Eric offered this by email: These don’t interest me. In the morning I fill 2 2-quart pitchers with water and drink them by bedtime.

  24. Fredric Coe, MD

    Don offered this by email: I appreciate new information and tips for reducing the incidence of kidney stone problems.

  25. Fredric Coe, MD

    Anthony offered this comment by email: No interest.
    Hopefully drinking enough water and my cytra-k will help with my lifetime of stones.
    Thank you for all of your valuable info.
    Anthony C

  26. Fredric Coe, MD



  27. Dave Monk

    Dr. Coe, this is the first time I’ve heard of these apps and am interested in using them in my personal war against kidney stones. I will be happy to provide you with feedback once I’ve had a chance to evaluate the apps. However, I don’t see myself using smart bottles, since it’s easy enough for me to monitor my liquid intake.

    Thanks & keep up the good work!

  28. Audrey Franklin

    I’m not interested, I just stick with diet and keep an eye on volume and color of urine. For stone newbies, though, an app or tracker could be helpful. If you could put all your content into one, it’d easily top any other. I’ve been a stoner for 16 years, and your site is the best I’ve ever found anywhere. Thank you for what you do!

  29. Mary Tilton

    I just use my 1.05 quart bottle of water and do my best to keep track of what I drink. Along with 1 – 12oz Coke that I drink an ounce at a time thru out the day. Without any stomach and without 50% of my esophagus it is hard to eat often and drink at the same time.

  30. Jeff

    When I initially looked for an app or tool to assist me with tracking my fluid intake I didn’t find any that could summarize the information in a way that could answer the questions that I have. So I created a simple database that records some basic data that I can summarize any way that I want. The data includes date, time, meal, type of fluid, and ounces. I only record times in 15 minute intervals, and include morning, afternoon, and evening snack in my meal categories. For my fluid and meal categories I have predefined lists to minimize data entry and ensure data consistency. I keep the database on my server at work, which I can access remotely from home. When away from a computer I write the data onto a paper fluid log or as notes in my cell phone, then add it to the database later.

    I use this tool for two reasons: (1) as a reminder to keep working on improving my fluid intake daily (it is easy for me to forget about drinking when busy with other stuff), and (2) to allow me to summarize the data to answer questions I am interested in. For example, while my total daily fluid quantity may be similar between a weekday and a weekend day, the timing of intake throughout the day is quite different, and the types of fluids consumed are very different. While I knew I drank a lot of milk over the course of a week (approx. 2 gals.), I found that roughly two-thirds of it is consumed during the two days of the weekend.

    I use a similar spreadsheet to record my food, but I don’t do any analysis of that data. I am pretty good at being attentive regarding what to eat, and have been working on avoiding the low-hanging fruit problem areas.

    Now all I need is a doctor or nutritionist that cares enough, and is willing to take the time, to review my data and make some recommendations. All the data in the world is no good unless it is used to make some decisions. So far the doctors I have been interacting with are not as interested in my data and analysis as I am. And I am not qualified to understand the intricate details of how an ileostomy interacts from a nutritional standpoint with the kidney processes (besides just a loss of general fluid uptake) to make competent recommendations for myself.

  31. fcoe

    Judy T offered this comment: Thank you your interest in Web Apps and Smart Bottles. Appreciate anything that will help provide information for good health.

  32. Behzad

    This is a great article informing readers about smart bottles and tracking apps. I will definitely check the smart bottles. This will be a great tool to keep track of the liquid intake.
    Thank you!

  33. Cheryl

    I also use MedHelp.org’s Kidney Function Tracker which integrates my water consumption.


  34. Cheryl

    I use MedHelp.org’s free Water Consumption app that’s integrated into My Diet Diary. It also is a tracker which can be used on MedHelp.org’s website.



  35. Linda Matuszewski

    Never knew anything about a Smart Bottle or apps. Thank you so much for your interesting articles.

  36. Stacy Cohen

    Don’t really use apps for much of anything

  37. Stephanie Bromiel

    I just use a water bottle to keep track.

  38. Dennis Egnatz, M.D.

    Wasn’t aware of the described tracking apps, but in general, they don’t interest me in this “steady state”. Hopefully, over the “rocky” decades, I’ve learned some general rules, although I know I’m not squeezing all the numbers all of the time.
    Your outstanding communication style, content, interest and focus remain truly laudable. Thanks. Dennis Egnatz,MD

  39. Barb Carroll

    I also use My Fitness Pal.
    Never seen or used a Smart Bottle. My constant companion is my HydroFlask which keeps my liquids VERY VERY VERY COLD, ice will stay frozen overnight.

  40. Amy Pike

    When I was first diagnosed with kidney stones, these devices may have been helpful as I was overwhelmed with making sure I had enough water and not too much sodium. Now that it is just a part of my lifestyle, I wouldn’t find them as helpful. In order to reach my daily goal of water intake, I prefer to use several different glasses and water bottles through the day to mix it up. I would not be interested in the smart bottles. Keeping track of the sodium was the trickier part. The app was helpful to remember what I had eaten earlier in the day and also a convenient spot to log how much sodium was in different brands of the same food. It was a real shock to see how much the sodium varied in certain products depending on the brand. (like parmesan cheese) Again, once I felt like I knew all my go to foods, I don’t use that app anymore. It really becomes second nature once you do it long enough.

  41. Monica Ryan

    As I am embarking on a stone prevention program, I am interested in anything that I can do to support this process. I am learning to be better (not great) with regards to my fluid intake but would appreciate any assistance. I did peruse “tracking fluid intake” within the app store but felt a bit overwhelmed with the many choices. So I would appreciate a specific suggestion for the appropriate app and I will be more than happy to move forward with this part of my personal program.

  42. Linda S

    I used the Sodium Tracker app for a few days, and am glad I did because it really made me aware of my sodium intake. I’d been under the impression that because of my low blood pressure and frequent tennis & exercise, that salt wasn’t an issue for me (and no doctor ever mentioned it to me as a possible issue). After tracking sodium for a couple days and seeing that the reduction significantly improved my kidney function (and my husband’s blood pressure), I’ll continue to track the intake, although I can do so without the app Now, I just typically do a quick Google search for questionable items to keep me in check. I’m looking forward to my next 24-hour test results.

    The smart water bottle sounds appealing to me.

  43. Laurie Jenner

    I’m not interested in these high tech devices and apps. It’s easy enough to keep track of my water and sodium intake. I don’t track oxylates as my stones are phosphate based. After many years of following this plan, it comes naturally.

  44. Suzette Clayton

    Hello, after being part of the program for nearly thirty years. I find my Contigo bottles lined up in the morning, ready to travel around the house, to the gym, running errands works well for me. I would not be interested in a smart bottle.
    I do use MY FITNESS PAL to track. I have not looked into the other apps, because this one is easy to use and suits my needs.
    I hope this helps.

  45. Hannah

    I have established a regular routine of drinking water that works for me. I find that a great, non-technical water bottle works just fine. As for sodium, an app might be helpful if I were eating processed foods all the time, but I’ve found that it is much easier to stick to a low-sodium diet if I make our meals and stick with whole foods. Any processed ingredient that I add to a recipe is very low sodium. As a working mom, I don’t have extra time in my day to log every single thing that I eat/drink. It’s just not practical.

  46. Midge Gilmour

    I’m at home most of the day and prefer to use the method of having 2 qt. bottles of water in the refrigerator and
    a 30 oz. mug when I’m not at home. I find the mugs great to use when you are traveling or not at home. Since I
    try to drink at least 120 oz. of liquid a day, the measurements are very helpful.

  47. Christina Grant

    I haven’t tried ANY of the apps to possibly help with my kidney stones. So I will just read the comments on here and maybe give some a try. Lord knows I need all the help I can get!!

  48. Leslea MacPhail

    I use fitness pal. I haven’t been happy with oxalate apps as info isn’t great. Tracking water is two 2 litre jugs of water in fridge and don’t go to bed until there are gone.

  49. fcoe

    Mike P offered this comment by email and I am copying it here with his permission:
    Dear Drs. Coe and Worcester:

    Thank you for your invitation to offer web and other resources that your patients use to track water and sodium intake.

    My primary web resource is My Fitness Pal, which has both an online service and apps which may be downloaded to tablets or phones. Most store-bought and restaurant foods are already uploaded to it, and it is possible to manually enter foods if they are not already included or when you are preparing your own from scratch. It will track all the nutritional components of the foods I eat, and I also track my hydration on this site. It also links to sister applications such as Map My Walk or Map My Fitness, as well as third-party apps from Fitbit, Garmin, Withings and other vendors.


    To help measure my water intake, I use a Nalgene 32 oz. / 0.95 liter bottle with graduated markings. As you both probably know, Nalgene’s base business is medical and laboratory containers, so their consumer bottles are also BPA-free, rugged, and leakproof. The bottles are popular with gym-rats and hikers alike, and they are safe for long-term food storage. I find them convenient to carry both at work and at the gym, and easy to read my water consumption.


    I hope this information is helpful to you both!

    • Ron Lach

      I have no problem keeping track of my liquid intake. I just drink water all the time!!!. As far as sodium I don’t eat salty items or use salt at meal time. The apps would not be of any value to me. just another gimick to keep track of.

  50. Al R.

    I’m just getting started with this. I searched for an Android app to track hydration. They all seem to graph statistics, but I could not find one that will graph my progress through a given day to highlight peaks and valleys as well as showing overall progress.
    I also noticed, not surprisingly, that the dietary apps are focused on inputs. I’m curious how much an app could glean about my current state of hydration and calcium stone risk with readings (possibly automated by the app) from an existing 14-parameter urine test strip that includes calcium, creatinine, pH, etc.? I’m thinking it could be a valuable educational tool, and also potentially useful when traveling, especially flying which is very dehydrating.

    • Fredric Coe, MD

      Thanks, Al. I agree. Fred Coe

      • Al R.

        Hello Dr. Coe, Here is an update on Android apps: I tried Gulp. It is free, has no ads. It lacks many of the common features such as statistics, but is very easy to use. Someone mentioned Hydro Coach, and I am using that now on days that don’t follow my regular daily routine. That adds statistics and more features. It records the time of each glass, and it does display a useful real-time indication of where you are vs. where you should be based on the time. It is free, but has both banner ads and frequent intrusive pop-up ads until you pay to remove them. Fortunately, that only cost me $1.72. Neither app allowed me to directly set the daily goal. But I found a work-around – greatly exaggerate my weight so it will calculate the volume I want. 🙂

  51. Michelle Weber

    I use a Fitbit activity band and the Fitbit app that goes with it is fantastic. Not only does it track, my steps, floors, activity & calories burned – it also tracks food and all nutritional information (sodium & calcium) water intake, weight and much more. It is fantastic having a screenshot all in one place. It has been a fantastic tool in the fight against Kidney Stones. I think the smart bottles sound great, especially when you intake large amounts of water and always have a memory of logging it, this would take away the did I or didn’t I log this water.

  52. Faith Baran

    I use the “My Fitness Pal” app on my phone. I use it daily, mainly to track calories. This app also shows you many different nutritional items (such as cholesterol, fiber, vitamins, etc.) however I only look at the sodium and fat for each item. I use the free app so it doesn’t really keep totals for you to look at but it will give you a brief message if you are nearing your sodium or fat daily allowance.

    As soon as I stop using it I start to slip with my “eating” goals but when I use it it really helps me stay on track.

    I don’t track my fluid intake at all because I do drink large amounts of water each day.
    I really like this app as it has everything I need and it is very easy to use.

  53. Terri Jensen

    I have had no luck finding an app to track both sodium and calcium accurately. I look forward to the results. I tried the Lose it app but it does not track calcium. I use pen and paper and calorieking.com although the calcium values are often understated at 0 and I wonder how accurate the results are for sodium. Calorie King has an app but it appears that the app doesn’t list calcium.

  54. Laura bousada

    I used to use one..called hydro coach, there are tons if you search water reminder.. One is called drink water..search in your app store and there are a lot of free ones..the same way there are tons, same way there are a lot of alarm clocks a lot of calendars apps.. So what I do is download one and check it out if it is no good you download another deleting the one you did not like.

  55. Coleman

    Hi Elain and Fred, I am a founder of Hidrate, and we’re making the Hidrate Spark smart water bottle. I wanted to thank you for the mention in your article and let you know that we think drinking water is one of the best ways to prevent kidney stone formation. With a sleek water bottle that glows to remind you to drink water and an easy to use app that sends fun and helpful notifications it’s a great way to keep track of your water intake and help you live a healthier life! Feel free to download our app for both iOS and Android just search Hidrate Spark. Our bottles will be shipping out later this month, and if you want to learn more check out our website http://www.hidratespark.com

    • Fredric Coe, MD

      Hi, This being a university site I don’t allow commercial content but in this case everything is indeed about commercial products. I do want to make clear that we are not endorsing any products but simply accumulating comments from patients. Regards, Fred Coe

  56. Ken Mc.

    Fluid intake apps lack an important function: compensation for fluid lost to exertion & extreme climate conditions. I’ve tried a few, and always have one installed just to keep my base up w/ reminders. However, I can lose as much as 5 lbs. — almost 100% of that is water — during a ride in high heat. I am not convinced that the old rule of drinking water until you’ve regained your pre-ride body weight is sufficient or wise (e.g. hyponatremia).

  57. Amy Pike

    I also use the app called Sodium Tracker. It’s nice because you can keep a list of the foods you regularly eat to quickly add them to daily total. It really has helped me budget out my sodium intake over the day. I always know where I stand. 🙂

  58. Kimberly Girga

    I used my fitness pal for a while. You simply scan what you eat and at the end of the day you get a report that includes sodium, water, protein, carbs, sugar, vitamin A, vitamin C, iron, potassium, etc. I lost 45 pound and, when I had Calcium Oxilate stones, it helped tremendously. It is a lot of work and takes dedication but it is very effective.

    • Fredric Coe, MD

      Hi, Kimberly, why did you stop using it, I wonder. Fred Coe

      • Kimberly Girga

        I was using it to exercise and lose weight. I had a hysterectomy and my stones changed from Calcium Oxilate to Uric Acid or something else. I started forming a lot more stones and it became to painful to exercise. I should start using it again but like I said it is a lot of work and takes dedication to log everything you eat.

    • Ken Mc.

      I’ve used My Fitness Pal for almost 2 yrs. As a cyclist, it’s crucial for making sure I hit my macro nutrients, and it’s integration with Strava (cycling activity tracker & more) adjusts daily caloric “goals.”

      Major caveats:

      Nutrient data for foods, even the “certified” entries and especially for whole foods, are suspect. For example, try searching for any cut of beef. You’ll see that many entries include no potassium.

      The 50/25/25% default macro split is ridiculous (and arbitrary), esp. WRT protein.

      The adjustment of caloric needs according to exercise is a wholesale bump across all macros. I’m sure Dr. Coe will agree that even if I burn 1,500 kCal cycling, I don’t need 225 g. of protein for the day.

  59. Amanda Orzolek

    I use an app called Sodium Tracker for tracking my sodium – super easy to use and very helpful to see where I am at throughout the day! I haven’t used a smart bottle but that sounds like an amazing idea and something I would definitely purchase if I knew where to!


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