Comparison

Water Tracker vs Danjiki AI Fasting Timer 16

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

Head to head
About

Water Tracker

Easily track your daily water intake with smart reminders and personalized goals based on your weight and activity. Log drinks with a single tap and monitor your hydration journey with insightful statistics. Integrates with Apple Health for a comprehensive view of your well-being.

Highlights
  • Personalized daily hydration goals
  • Smart and customizable reminders
  • Track various drink types
  • Apple Health integration
  • Home screen widgets
  • Hydration journey and statistics
Features
Read full description

Water Tracker is a calm, clear way to drink enough water every day. Your daily goal starts from your weight and activity, and it can rise with the weather on hot days. Today's intake is one water level that rises as you drink, with the number large and everything else quiet. Log a glass with one tap and get on with your day. WHAT YOU TRACK • Water, tea and coffee, plus juice, milk, soda, sports and energy drinks, smoothies and alcohol with Premium • Every drink counts by how well it hydrates, so coffee and alcohol count for less than water • Caffeine from every cup, with an optional sync to Apple Health • Your own drinks, glasses and bottles as one-tap choices (Premium) GOAL AND REMINDERS • A daily goal from your weight and activity level, in ml or oz • On warm days, add a boost yourself, or let Premium raise the goal from your local weather • Reminders at the interval you pick, with quiet hours for the night • Smart reminders (Premium) speed up when you fall behind and ease off near your goal • A post-workout guide shows how much to drink after exercise JOURNEY AND STATS • Journey turns your streak into milestones, from your first day to day 90 • Achievements celebrate the habit as it grows • Weekly and monthly charts show where your habit slips (Premium) • Export your history as CSV or JSON whenever you like WATCH AND WIDGETS • Home Screen widgets show today's level and add water with a tap • The Apple Watch app (Premium) puts today's ring on your wrist and logs water in one tap PREMIUM Weather goals, smart reminders, every drink plus your own, caffeine insights with a last call for coffee, the full Journey, stats, extra color themes and the Apple Watch app. Choose a subscription, or pay once for lifetime access with no renewals. PRIVACY • Your hydration history stays on your device, no account needed • Anonymous usage analytics only if you allow it, and you can switch it off in Settings • Location is used only for weather goals, and only after you turn them on • Apple Health is optional, and you choose what it can read and write • No third-party ads Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and renewal is charged within 24 hours before the period ends. Manage or cancel them in your App Store account settings. Lifetime access is a one-time purchase. Privacy Policy: https://water-tracker.app/privacy Terms of Use: https://water-tracker.app/terms Support: contacts@trifoiltrailblazer.com

About

Danjiki AI Fasting Timer 16

Features
Read full description

No subscription. One-time purchase, yours for good. A simple timer that measures and logs how long you fast. It never promises results or claims changes to your body — it just shows your own records, honestly. STARTING TAKES ONE TAP - Choose from 12:12 (a gentle start), 14:10, 16:8 (the classic), 18:6, 20:4, or OMAD (23:1) - Your last preset is remembered, so next time it's a single tap - Prefer your own length? Enter a custom fasting window LOGGING NEVER MAKES YOU CHOOSE - Just two buttons: "Start fasting" and "End the fast" - Ending early still gets logged as a fact, with no judging words — "5h 30m logged," nothing more - Change your mind within a minute of starting and undo without keeping a record STREAK AND WEEKLY TOTALS - Your streak is shown as a simple calendar, not a score to chase - See your weekly total, the average per fast and how many fasts you logged (the weekly totals unlock with the one-time purchase) A TREND FROM YOUR OWN RECORDS - Once 7 completed fasts build up, you'll see something like "you tend to start in the evening" based on your own history (unlocked by the one-time purchase) - This is a statistic from your past records, not health advice or a diagnosis. We never say a time is "best" for you QUIET AT NIGHT - No notifications between 22:00 and 6:00 by default. If the fast time would have been reached overnight, you get a single honest notice once the quiet hours end AI NOTE (SUPPORTED DEVICES AND LANGUAGES ONLY) - On iPhones that support Apple Intelligence (iOS 26 or later), the on-device AI writes a short note and a guide for your next fast from your log right away, with no extra download. It appears on the Trend screen (unlocked by the one-time purchase) - On slower devices and in languages that are not supported, the AI is not used and the "Note on your log" is shown instead - Your records are never sent anywhere. The iPhone app downloads nothing - Not medical advice or a diagnosis BEFORE YOU START - If you have a medical condition, are pregnant or breastfeeding, are a growing child, or have a history of an eating disorder, please talk to a doctor first - This app times and records your fasting. It does not diagnose or treat anything BUILT TO BE TRUSTED - Your records are never sent off the device. The iPhone app uses no network - Export and import your records (backup, moving to a new device) any time, free - No account required - No ads - The 16:8 preset, logging, and your streak are free to use for good

Screenshots

Water Tracker4 screens
Danjiki AI Fasting Timer 164 screens

Verdict

The call

The clearest difference is update cadence: Water Tracker at every 3 days against Danjiki AI Fasting Timer 16's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Water Tracker sells 4 in-app purchases, starting at $3.99 per 7 days and Danjiki AI Fasting Timer 16 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Water Tracker ships an update every 3 days, Danjiki AI Fasting Timer 16 every 10 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Water Tracker versus Danjiki AI Fasting Timer 16: the parameters behind the verdict, then further details
ParameterWater TrackerDanjiki AI Fasting Timer 16
PriceFreeFree
Rating4.3 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size50 MB81 MB
Age rating4+12+
DeveloperIvan TerekhinAKIHIRO MATSUYAMA

In-app purchases

4 purchases

Water Tracker

Subscriptions3
  • Water Tracker Premium Weekly$3.997 Days
  • Water Tracker Premium Monthly$6.991 Month
  • Water Tracker Premium Yearly3 Days trial$19.991 Year
One-time1
  • Premium$14.99
1 purchases

Danjiki AI Fasting Timer 16

One-time1
  • だんじきプロ$1.99

Questions

Is Water Tracker free?
Water Tracker is free to download, with in-app purchases available.
Is Danjiki AI Fasting Timer 16 free?
Danjiki AI Fasting Timer 16 is free to download, with in-app purchases available.
Do Water Tracker or Danjiki AI Fasting Timer 16 have ads?
Neither Water Tracker nor Danjiki AI Fasting Timer 16 shows ads.
Which is updated more often, Water Tracker or Danjiki AI Fasting Timer 16?
Water Tracker ships an update every 3 days, and Danjiki AI Fasting Timer 16 every 10 days. Most recently, Water Tracker was updated on November 8, 2026 and Danjiki AI Fasting Timer 16 on October 31, 2026.

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