Comparison

DayByDay Tracker vs Drink Water

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

DayByDay Tracker

Features
Read full description

The weight loss journey is lonely. The scale lies. And nobody hands you a map for life on a GLP-1. DayByDay is the companion that finally gets it. One calm, private place for everything that actually moves the needle β€” your food, your weight, your medication, your sleep, your body. Connect Apple Health and much of it fills in. And every morning, Dayo, your AI coach powered by Anthropic's Claude, reads your last 30 days and tells you, in plain words, what's working and what's not. Losing, holding your goal, or coming back from a regain β€” there's no shame here. Just your data, and a path forward. MEET DAYO, YOUR AI COACH β€’ Daily Coach Notes written from your real numbers, not generic tips β€’ Every claim backed by evidence you can tap β€’ Knows your medication, your dose, and where you are in the journey β€’ Names the stalls and plateaus, and shows you what's actually changing FOOD LOGGING THAT DOESN'T FEEL LIKE A CHORE β€’ Snap a photo of your plate and let AI turn it into calories and macros β€’ Scan a barcode or search millions of foods, powered by FatSecret β€” even offline β€’ Save favorites and copy yesterday, so most days take just a few taps β€’ Calories, protein, carbs, fiber, and water at a glance β€’ Let Dayo connect what you eat to how you feel β€” insight, never judgment BUILT FOR GLP-1 β€’ A live medication level, and a countdown to your next shot β€’ Missed-dose guidance that follows your medication's FDA label β€’ Pen storage countdown so a $1,000 pen never gets tossed by mistake β€’ Injection-site rotation advisor β€’ Side-effect tracking with peak-day patterns for your provider β€’ Pharmacy and refill hub with prior-auth reminders β€’ Ozempic, Wegovy, Mounjaro, Zepbound, Saxenda, Rybelsus, and compounded β€’ Travel-aware dose timing, pause mode, and a medication switcher β€’ A doctor-ready visit summary PDF YOUR BODY, DEEPER β€’ A weight trend that cuts through daily water-weight noise β€’ Body-fat percentage goal with projections β€’ DEXA scan tracking with lean-mass-loss alerts β€’ Waist, chest, and neck measurements, plus clothing sizes β€’ A private, encrypted progress-photo timeline SLEEP, ENERGY, AND RECOVERY β€’ A personal Energy Schedule that predicts your highs and dips each day β€’ Sleep stages, a Sleep Score, and a Resilience Score β€’ Overnight blood oxygen, heart rate, and breathing rate β€’ Wellue / Viatom O2 Ring sync STAY IN IT β€’ A Momentum Score that rewards showing up β€’ Milestone celebrations at 5%, 10%, or your goal β€’ Share cards for your wins, straight to Instagram or Stories β€’ Home Screen and Lock Screen widgets: weight, medication level, next-shot countdown PRIVATE, ALWAYS β€’ Encrypted at rest, private by default β€’ One tap to delete everything β€’ No ads, ever, and your data is never sold β€’ Fully exportable, anytime START WITH 14 DAYS FREE β€’ Try Plus free for 14 days β€” food logging and all β€” then keep going free or subscribe. Cancel anytime. β€’ Free: log your weight, doses, sleep, exercise, and labs β€” no time limit, no credit card β€’ Core ($4.99/mo or $49.99/yr): Dayo your AI coach, trends, projections, Apple Health sync, and exports β€’ Plus ($9.99/mo or $99.99/yr): everything in Core, plus food logging (barcode, photo-of-plate, FatSecret) and food-aware AI coaching Coming from MyFitnessPal or Lose It!? You'll feel right at home β€” plus everything a food tracker can't see: your medication, your sleep, your body, all in one place. Privacy Policy: https://mydaybyday.app/privacy Terms and Conditions: https://mydaybyday.app/terms Support: https://mydaybyday.app/support β€” IMPORTANT: DayByDay is a personal health tracking tool designed to help you record and visualize your health journey. It does not provide medical advice, diagnosis, or treatment. DayByDay is not a medical device and has not been evaluated or approved by the FDA or any regulatory authority. All calculations, estimates, and visualizations are for informational purposes only. Always consult your healthcare provider before making any decisions about medication or treatment.

About

Drink Water

Features
Read full description

Lumi is your cute assistant who manages your water habit with you throughout the day. Eighteen looks (Astronaut, Hero, Ninja…) make the home screen yours; Lumi’s expression changes with your progress. See your goal, log every glass, keep your daily streak. This is a habit tracker. It does not promise medical treatment or weight loss. Its job is to keep your water goal visible, make logging effortless, and celebrate the days you follow through. Lumi and her looks Lumi is waiting on the home screen. Choose Astronaut, Hero, Ninja, or any other look. A good day looks like a good day on screen too. Goal and logging Setup is short: name, weight, age, gender, and activity. Height is not asked at setup; you can add it later in Profile. Your daily goal is calculated from what you share; a slider lets you tune it for your day. Logging is one tap. 150 ml small glass, 200 ml main glass, 500 ml bottle. Undo 200 ml if you tapped by mistake. As the main bottle fills, you see how much you drank today and how much remains. Reminders Notifications change with Lumi, the time of day, and how close you are to your goal. Morning, afternoon, and evening lines differ. When you reach the daily goal, extra notifications stop for that day. The app still works if you decline permission; turn it on later in Settings. Streak shield Days you hit the goal count as a streak. Missing a day’s goal does not have to wipe it. The shield does not fill today’s water goal for you. Statistics and achievements Weekly and monthly charts, average, best day, and success rate stay simple. The Motivation tab has a daily message with Lumi, short tips, and badges: first glass, 3 / 7 / 14 / 30-day streaks, a perfect week, and Hydration Master (75 litres in the last thirty days). Share your progress if you want. You can keep logging offline. The app is available in 28 languages. Change the language on the Profile page. Premium unlocks every look, opens the streak shield, and removes ads. The yearly plan is listed first. Prices appear in the App Store for your country. Privacy Policy: https://mertglbyz.github.io/Water_Reminder_Support/privacy-policy Terms of Use: https://mertglbyz.github.io/Water_Reminder_Support/terms-of-service No sign-in required. This is not a medical app; it tracks a water habit. This app offers auto-renewable Premium subscriptions (monthly and yearly). Payment is charged to your Apple ID at confirmation of purchase. The subscription renews unless you turn off auto-renew at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the period. Manage or cancel in Apple ID account settings after purchase. Any unused part of a free trial, if offered, is forfeited when you buy a subscription.

Screenshots

DayByDay Tracker4 screens
Drink Water4 screens

Verdict

The call

The clearest difference is ads: DayByDay Tracker at none against Drink Water's shown. Drink Water's advantage is update cadence (every 10 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. DayByDay Tracker sells 6 in-app purchases, starting at $4.99 per month and Drink Water sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DayByDay Tracker ships an update monthly, Drink Water every 10 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
DayByDay Tracker versus Drink Water: the parameters behind the verdict, then further details
ParameterDayByDay TrackerDrink Water
PriceFreeFree
Update frequencyMonthlyEvery 10 days β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 β€” better16.4
Further details β€” not scored
Size88 MB58 MB
Age rating12+4+
DeveloperChristopher KaczkowskiKADRI GULBEYAZ

In-app purchases

6 purchases

DayByDay Tracker

Subscriptions6
  • Day By Day Core Monthly$4.991 Month
  • DayByDay Premium Monthly$5.991 Month
  • Day By Day Plus$9.991 Month
Show 3 more
  • Day By Day Core Yearly$49.991 Year
  • DayByDay Premium Yearly$59.991 Year
  • Day By Day Plus Annual$99.991 Year
2 purchases

Drink Water

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly$24.991 Year

Questions

Is DayByDay Tracker free?
DayByDay Tracker is free to download, with in-app purchases available.
Is Drink Water free?
Drink Water is free to download, with in-app purchases available.
Do DayByDay Tracker or Drink Water have ads?
Drink Water shows ads; DayByDay Tracker does not.
Which is updated more often, DayByDay Tracker or Drink Water?
DayByDay Tracker ships an update monthly, and Drink Water every 10 days. Most recently, DayByDay Tracker was updated on October 31, 2026 and Drink Water on October 25, 2026.

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