Fasting Well vs Fasti
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Well
Track your intermittent fasting journey with science-backed insights. Monitor your progress through different metabolic stages and view your history with a visual heatmap. Offers built-in plans and detailed scientific articles.
- Stage-aware fasting progress visualization
- Live timer with customizable ring
- Six built-in fasting plans
- Journal and weekly progress charts
- Science-backed articles on fasting
- Calendar heatmap of activity
- Privacy-first, on-device data storage
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Fasting Well is a beautiful, science-grounded intermittent fasting tracker. Designed for the moments your fast actually happens — at home, in transit, before bed — with the kind of polish you'd expect from an app you open every day. EVERY FAST IS A JOURNEY A fast isn't a single state — it's a sequence. Anabolic. Catabolic. Fat-burning. Ketosis. Deep ketosis. Fasting Well shows you exactly where you are in that journey, with stage-aware visuals and a quiet narration of what's happening inside. WHAT YOU GET (FREE) • Live timer with the ring you'll want to watch • Six built-in plans: 16:8, 18:6, 20:4, OMAD, 24h, 36h • Stage-aware progress: see Anabolic → Ketosis unfold • Notifications when you cross a stage or hit your goal • Journal of your last 30 days with a weekly chart • Five long-form science articles, beautifully illustrated • Calendar heatmap of recent activity • Dark and light themes that look right on every screen WHY ANOTHER FASTING APP Because the popular ones either gutted their free tier or never felt like apps you'd open without a reason. Fasting Well is built to be the home screen icon you actually like seeing. PRIVACY-FIRST Your fasts and weight data stay on your device — no account, no cloud sync, no servers we own. To make the app better we collect anonymous usage signals (e.g. "a fast was started on the 18:6 plan" or "an article was opened") through PostHog. These contain no personally identifying information and can be turned off entirely in Settings → Privacy. SCIENCE-BACKED, NOT WELLNESS-HYPE Built on peer-reviewed fasting research. No talk of "detox." No supplements to sell. Just the metabolic story your body is actually telling. FASTING WELL PRO Go deeper with Pro: build custom fasting protocols, log your weight and watch the trend, unlock advanced statistics (12-week heatmap, completion rate, best streak), share beautiful fast cards, and pick from every accent color. Pro is a monthly or annual subscription, or a one-time lifetime purchase — and the core tracker stays free forever. QUESTIONS, FEEDBACK hello@fastingwell.app We're a small team. Every email gets read. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fastingwell.app/privacy
Fasti
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Intermittent fasting made simple. Fasti is a clean, focused fasting tracker for 16:8, 18:6, 20:4, OMAD, and custom fasting schedules. Start your fast in seconds, follow your progress with a live fasting timer, build streaks, review your history, and stay consistent with helpful reminders. No clutter. No complicated setup. No account required. START YOUR FAST IN ONE TAP Choose your fasting schedule, tap start, and Fasti tracks the rest. Use popular fasting plans including: • 16:8 • 18:6 • 20:4 • OMAD • Custom fasting windows Whether you’re new to intermittent fasting or already have an established routine, Fasti adapts to the way you fast. LIVE FASTING TIMER See exactly how long you’ve been fasting and how much time remains. The simple progress ring makes your fasting window easy to understand at a glance, without calculations or unnecessary screens. FASTING STREAKS Stay motivated by building consistent fasting streaks. Track your progress over time and see how regularly you’re completing your fasting goals. FASTING HISTORY Review your completed fasts in one place. Your fasting history helps you see patterns, track consistency, and understand how your routine is developing over time. SMART REMINDERS Stay on schedule without constantly checking the app. Get reminders for important moments in your fasting routine, including when your fast starts, when you’re approaching your goal, and when your eating window begins. SIMPLE BY DESIGN Fasti is built for people who want a fasting tracker without unnecessary complexity. No calorie-counting overload. No complicated coaching system. No account required. No clutter. Just a simple fasting timer and tracker designed to help you stay consistent. PRIVATE BY DESIGN Your fasting routine is personal. Fasti is designed with privacy in mind and does not require an account to start tracking your fasts. FAST YOUR WAY Use Fasti for: • Intermittent fasting • 16:8 fasting • 18:6 fasting • 20:4 fasting • OMAD • Custom fasting schedules • Fasting streak tracking • Fasting reminders • Fasting history and progress Whether you’re starting your first 16:8 fast or refining a long-term fasting routine, Fasti gives you the tools you need without getting in the way.
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Verdict
The clearest difference is in-app purchases: Fasting Well at none against Fasti's 1. On price, update cadence, ads 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
Both are free to download. Fasti sells 1 one-off in-app purchase. Fasting Well asks for nothing beyond the download.
Fasting Well ships an update every 3 months, Fasti every 4 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | Fasting Well | Fasti |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 45 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Generalizable | Glenn Francis |
In-app purchases
Fasting Well
No in-app purchases
Fasti
- Pro$9.99









