Fasting Tracker vs WaterFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Tracker
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Start fasting in seconds. Pick a plan, tap start, and your timer begins counting down through every fasting zone from fat burning to deep autophagy. No sign-up, no account, no bloat. Just open the app and go. Fasting Tracker makes intermittent fasting simple and visual. Watch your progress through color-coded fasting zones that show exactly what your body is doing at each stage. The 16:8, 18:6, 20:4, and custom schedules are all one tap away. Track your weight over time with a clean chart that shows real progress. Log your water intake to stay hydrated during fasts. Build fasting streaks that keep you motivated day after day with streak freezes when life gets in the way. Kiwi, your fasting companion, cheers you on as you hit each zone and celebrates every completed fast. Stats show your total fasting hours, longest streak, and weekly patterns so you can see how far you have come. Syncs with Apple Health to keep all your health data in one place. Works offline, runs locally, and respects your privacy completely. Fasting is the simplest way to feel better. This is the simplest way to fast. https://www.apple.com/legal/internet-services/itunes/dev/stdfla/
WaterFast
This app provides a synchronized intermittent fasting timer designed for seamless use across your iPhone and Apple Watch. It offers detailed insights into fasting zones and hydration tracking, with a focus on privacy and a user-friendly experience.
- Synchronized iPhone and Apple Watch timer
- Fasting zone insights
- Hydration tracking
- Multiple fasting plans
- Streak calendar
- Data export
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Some fasting apps charge many times more. WaterFast is a fraction of that — with a 3-day free trial on every plan. You decide. FASTING APPS HAVE A PROBLEM They're either overpriced, bloated with social feeds and AI coaching you never asked for — or they're simple but their Apple Watch app runs a separate countdown that drifts out of sync with your iPhone. Two timers for the same fast. Not optimal. WATERFAST IS DIFFERENT One timer. One source of truth. Your Watch doesn't follow your iPhone — it leads. Start, monitor and end your fast right from your wrist, even with your iPhone in your pocket. When you pick it up, everything matches. Always. To the second. TRY IT ALL FREE FOR 3 DAYS Start a 3-day free trial and unlock everything — no strings attached. Then keep it monthly, yearly, or one-time lifetime. Cancel anytime. EVERYTHING INCLUDED • Every plan: 16:8, 18:6, 20:4, OMAD, 5:2 and fully custom • Start & stop fasts from Apple Watch — it leads, iPhone follows • Live timer with progress ring and fasting zones • Streak calendar — don't break the chain, unlimited history • All Apple Watch complications (circular, corner, inline, rectangular) • Hydration tracking with one-tap logging and daily goal • Full stats: current streak, longest fast, total hours, success rate • Export your data as CSV • No account required BUILT FOR APPLE WATCH — REALLY Most fasting apps treat the Watch as an afterthought. WaterFast was designed wrist-first. The timer state lives in one shared place: start a fast on your Watch during dinner, check the zone on your iPhone the next morning — same fast, same seconds, zero drift. KNOW YOUR FASTING ZONES Track exactly what's happening in your body — from digestion through fat burning and ketosis to autophagy. Each zone explained in plain language, with science-based hour ranges. Educational reference only — not medical advice. HYDRATION, ON YOUR WRIST Log a glass of water with one tap on your Watch, with haptic confirmation, synced instantly to your iPhone and Apple Health. A PRICE THAT RESPECTS YOU WaterFast PRO: monthly, yearly, or one-time lifetime. Every plan starts with a 3-day free trial. We think a fasting timer shouldn't cost more than your streaming service. PRIVATE BY DESIGN No account. No ads. No tracking. Your fasting and hydration data never leaves your device (except to your own Apple Health, if you choose). Start your 3-day free trial and run your first fast in under a minute. --- Medical disclaimer: WaterFast provides educational information about fasting. It is not medical advice. Consult your healthcare provider before starting any fasting protocol, especially if you have a medical condition, are pregnant, or take medication. --- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Verdict
Fasting Tracker and WaterFast are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fasting Tracker sells 4 in-app purchases, starting at $4.99 per 7 days and WaterFast sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Fasting Tracker | WaterFast |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | +4 |
| Developer | Cloud Motion Lab LLC | LUIS ORLANDO LAZO GONZALEZ |
In-app purchases
Fasting Tracker
- Pro Weekly3 Days trial$4.997 Days
- Yearly Pro$19.991 Year
- Lifetime Pro - Offer$19.99
- Lifetime$29.99
WaterFast
- WaterFast PRO Monthly3 Days trial$2.991 Month
- WaterFast PRO Yearly3 Days trial$9.991 Year
- WaterFast PRO Lifetime$24.99









