Fasti vs Moonfast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Moonfast
This app provides a calm and quiet intermittent fasting timer. It offers customizable fasting protocols, live activity integration for lock screen tracking, and a gentle timeline of fasting stages. It also logs your history, weight, and vital signs, with a focus on privacy.
- Customizable fasting protocols
- Live Activity timer on lock screen
- Gentle stage timeline
- Fasting history and streaks
- Optional weight and vital sign logging
- Apple Health integration
- Private by default, no account needed
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Moonfast is a quiet intermittent-fasting timer for people who would rather not be shouted at by an app. Pick a protocol — 16:8, 18:6, 20:4, OMAD, or your own hours — and start. The ring shows how far into your fast you are, and keeps counting if you go past your goal. LIVE ON YOUR LOCK SCREEN Start a fast and it appears as a Live Activity, so the timer is there without unlocking. The Dynamic Island keeps it at a glance, and Home and Lock Screen widgets show your current fast, your streak and your longest fast so far. A GENTLE STAGE TIMELINE As the hours pass, Moonfast describes the stages people commonly associate with fasting windows. It is written to be interesting, not instructive — bodies differ, and the app says so. YOUR HISTORY, HONESTLY A calendar of the fasts you have finished, current and longest streaks, weekly averages and personal bests. When there is not enough data yet for a number to mean anything, Moonfast says that instead of inventing one. WEIGHT, SMOOTHED Log your weight, or connect Apple Health and let it come across on its own. Moonfast draws a smoothed trend line through the daily noise, because day-to-day weight moves on water alone. Connecting Apple Health is optional, and the app works fully without it. VITALS, SIDE BY SIDE If Apple Health has your resting heart rate, heart rate variability or time asleep, Moonfast charts them next to the days you fasted. It shows the readings; it does not tell you what they mean. Readings come from an Apple Watch or another app — Moonfast only reads them. HYDRATION Log water, tea or coffee while you fast. If you want a daily target you can set one — Moonfast will not pick one for you. PRIVATE BY DEFAULT No account. No servers. No analytics. Everything you log stays on your iPhone, and you can export all of it as JSON or delete every trace of it whenever you like. Moonfast is a timer and a log. It is not a medical device, and it does not give medical advice, diagnosis or treatment. Talk to a doctor before you change how you eat, especially if you take medication or have a health condition. Moonfast is not intended for anyone under 18, for anyone who is pregnant or breastfeeding, or for anyone with or recovering from an eating disorder.
Screenshots
Verdict
The clearest difference is price: Fasti at Free against Moonfast's $0.99. Moonfast's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs every 4 months). On ads, device support 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
Fasti is free to download; Moonfast costs $0.99 up front. Fasti sells 1 one-off in-app purchase. Moonfast asks for nothing beyond the download.
Fasti ships an update every 4 months, Moonfast every 2 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Fasti | Moonfast |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, Apple Watch |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 51 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Glenn Francis | https://airussolutions.com/ |
In-app purchases
Fasti
- Pro$9.99
Moonfast
No in-app purchases








