MUSCL vs Fasti
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MUSCL
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MUSCL is AI-powered Physique Intelligence. Analyze your physique, identify weak points, and generate a personalized hypertrophy program designed for your body. • AI Physique Analysis • Weak Point Detection • Smart Training Programs • Adaptive Progression • Intelligent Workout Tracking Stop guessing. Start building your physique intelligently. Subscription Terms • Payment will be charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless canceled at least 24 hours before the end of the current period • Your account will be charged for renewal within 24 hours prior to the end of the current period • You can manage and cancel subscriptions in your App Store account settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mature-asp-ac5.notion.site/MUSCL-Privacy-Policy-33b25b14d842801ea15cc5407aa21318?source=copy_link
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.
Screenshots
Verdict
The clearest difference is update cadence: MUSCL at every 4 days against Fasti's every 4 months. 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
Both are free to download. MUSCL sells 2 in-app purchases, starting at $19.99 per month and Fasti sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
MUSCL ships an update every 4 days, Fasti every 4 months. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.
| Parameter | MUSCL | Fasti |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 59 MB | 51 MB |
| Age rating | 17+ | 4+ |
| Developer | IKARUS PTY LTD | Glenn Francis |
In-app purchases
MUSCL
- MUSCL Monthly7 Days trial$19.991 Month
- MUSCL Annual3 Days trial$99.991 Year
Fasti
- Pro$9.99









