InterFasting vs Waterfaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InterFasting
This app helps users succeed with intermittent fasting through scientific and systematic management. It offers AI-powered schedule and calorie recommendations, a simple timer, and comprehensive tracking of fasting hours, meals, workouts, and water intake. Users can visualize progress and receive detailed reports to build healthy habits.
- AI fasting schedule recommendations
- AI food calorie calculation
- Intermittent fasting timer
- Customizable fasting plans
- All-in-one health tracking
- Fasting analysis and reports
- Home screen widget
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Ready to make intermittent fasting actually work? InterFasting is the smart fasting tracker and fasting timer that helps you stay consistent without extreme dieting. No more guessing, no complicated calorie counting — just smart tools that actually work. Why people choose InterFasting • AI Schedule Recommendations Get a personalized intermittent fasting plan based on your lifestyle — no more trial and error. • AI Calorie Counter & Food Scanner Just snap a photo of your meal. Instantly see calories and macros without manual logging. • The Easiest Fasting Timer Supports 16:8, 5:2, OMAD, and fully custom schedules. Smart alarms keep you on track. • 100% Free Customization + Ad-Free Experience Adjust your fasting windows freely and track everything in a clean, distraction-free interface. • All-in-One Health Tracker Monitor fasting hours, weight progress, meals, workouts, and water intake in one place. • Home Screen Widgets Check your fasting stage and countdown timer instantly from your home screen. • Hour-by-Hour Body Stages See what’s happening in your body during a fast (Ketosis, Autophagy, and more). • Visual Progress & Photo Diary Log meals and take progress photos to stay motivated by real results. Science-backed benefits of intermittent fasting Effective fat burning and weight loss Boosted autophagy and cellular repair Better blood sugar control Reduced inflammation Improved mental clarity and energy Perfect if you want to start intermittent fasting for the first time, stay consistent with a reliable tracker, or combine fasting with keto and healthy weight loss goals. Consistency is the key. InterFasting helps you build habits that last. Download now and start your transformation. *** Apple Health Integration *** Automatically syncs weight, steps, and workout data with the Apple Health app. ABOUT SUBSCRIPTIONS & PAYMENT • Payment will be charged to your Apple ID account at confirmation of purchase. • You can manage or cancel your subscription in your App Store Account Settings at any time. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Terms of Service: https://www.interfasting.app/service_en Privacy Policy: https://www.interfasting.app/privacy
Waterfaster
Track intermittent and water fasts with live countdowns on your Lock Screen and widgets. Monitor your body's progress and connect with friends anonymously for support and challenges. Offers various fasting protocols and integrates with Apple Health.
- Live Lock Screen and widget countdowns
- Anonymous social fasting with friends
- Support for various fasting protocols
- Apple Health integration
- Hydration and electrolyte guidance
- Progress tracking and insights
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Water fasting and intermittent fasting, made clear — and no longer something you do alone. Start a fast with one tap and watch the live countdown on your Lock Screen, in the Dynamic Island and on your Home Screen widget. Follow what your body is doing hour by hour — fat burning, ketosis, cellular regeneration — based on published research. FAST TOGETHER — ANONYMOUS BY DESIGN • Live: see how many people are fasting with you right now • Your Circle: add friends with a simple code, follow their fast live, send boosts and friendly nudges • Groups & challenges: chase one goal together — from a 16:8 streak to a 7-day reset • No profiles, no photos, no feed of strangers. You appear under a generated water name unless you choose otherwise. YOU DECIDE WHO SEES YOU Share everything, hide from one specific friend, or go invisible completely. One tap, any time. NEVER LOSE YOUR PROGRESS Link Apple or Google and restore your history, stats and circle on any device. PICK YOUR PROTOCOL • Intermittent: 12:12, 14:10, 16:8, 18:6, 20:4 and OMAD • Water fasting: 24h, 36h, 48h, 72h, 4, 5 and 7 days • Flex: set or move your finish time while the fast is running ALSO INSIDE • Live Activity, Lock Screen and Home Screen widgets • Apple Health: steps, sleep, heart rate, weight and water • Hydration and electrolyte guidance during longer fasts • Streaks, trends and your full weight history • Personal insights and reminders you stay in control of Waterfaster is not medical advice. Talk to your doctor before longer fasts, and never fast on medication without medical guidance. — Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://waterfaster.app/terms Privacy Policy: https://waterfaster.app/privacy
Screenshots
Verdict
The clearest difference is ads: Waterfaster at none against InterFasting's shown. Waterfaster also leads on rating (5.0 vs 4.8). InterFasting's advantage is ratings volume (360 vs 2) and update cadence (every 4 days vs every 11 days). On price, in-app purchases, monetization model and iOS requirement 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
Both are free to download. InterFasting sells 5 in-app purchases, starting at $3.99 per month and Waterfaster sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Waterfaster holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: InterFasting has 360 ratings behind it against 2, so its average is the more settled of the two.
InterFasting ships an update every 4 days, Waterfaster every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | InterFasting | Waterfaster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (360 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 88.6% of reviews | — |
| Number of ratings | 360 — better | 2 |
| Update frequency | Every 4 days — better | Every 11 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 99 MB | 59 MB |
| Age rating | 4+ | 17+ |
| Developer | Liviet | AMIT Solutions |
In-app purchases
InterFasting
- Intermittent Fasting Monthly$3.991 Month
- Intermittent Fasting Monthly$6.991 Month
- Intermittent Fasting Annual$12.991 Year
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- Intermittent Fasting Annual$34.991 Year
- Premium User$12.99
Waterfaster
- Waterfaster+$3.997 Days
- Waterfaster+7 Days trial$44.991 Year
- Lifetime$89.99









