InnerFast vs ClearFast
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InnerFast
This app provides a visually engaging way to track intermittent and extended fasting journeys. It offers intelligent monitoring of fasting stages, personalized goal setting, and a comprehensive history of your progress. Enjoy a beautifully designed interface with flexible notifications to stay motivated.
- Visual progress tracking with activity rings
- Smart goal setting for custom durations
- Monitoring of five distinct fasting stages
- Comprehensive fasting history and insights
- Flexible stage change and motivational notifications
- Premium, dark mode optimized design
- Privacy-focused with no account required
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Transform Your Fasting Journey InnerFast is your elegant companion for intermittent fasting and extended fasts. With beautiful visual progress tracking and intelligent stage monitoring, reaching your fasting goals has never been more intuitive. Visual Progress Tracking Watch your fast unfold with stunning activity rings that show your progression through each fasting stage. From the initial anabolic phase to deep ketosis, see exactly where you are in your journey at a glance. Smart Goal Setting Set personalized fasting goals from 16 hours to multiple days, or track without limits. Choose preset durations or pick a custom end time that fits your schedule. The app automatically adjusts your progress visualization based on your goals. Five Fasting Stages - Anabolic (0-4h): Post-meal nutrient processing - Catabolic (4-16h): Glycogen depletion begins - Fat Burning (16-24h): Ketone production starts - Ketosis (24-72h): Deep fat adaptation - Deep Ketosis (72h+): Maximum metabolic benefits Comprehensive History Every fast is saved with detailed information including duration, stages reached, and timestamps. Review your progress, identify patterns, and celebrate your achievements. Flexible Notifications - Stage change alerts at key milestones - Motivational messages to keep you inspired - Choose from 8 different motivational styles - Customize frequency to match your needs Beautiful Design Crafted with care, InnerFast features a premium interface with smooth animations and an elegant color palette. Dark mode optimized for comfortable viewing any time of day. Key Features - Interactive activity rings for each fasting stage - Toggle between time elapsed and time remaining - Real-time percentage tracking - Detailed stage information and descriptions - Complete fasting history - Edit start times if needed - Statistics and progress insights - No subscription required Privacy Focused Your fasting data stays on your device. No account required, no data collection, complete privacy. Whether you're practicing 16:8 intermittent fasting, doing OMAD (One Meal A Day), or exploring extended fasts for deeper health benefits, InnerFast provides the clarity and motivation you need to succeed. Download InnerFast today and make every fast count.
ClearFast
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Most fasting apps today are bloated with social feeds, AI coaches, mandatory account creation, and intrusive data tracking. ClearFast is different. Built for minimalists and anyone who values their privacy, ClearFast is a beautifully designed, high-contrast utility that does exactly one thing: tracks your fast flawlessly. No friction. No clutter. Just open the app and tap start. RADICAL PRIVACY Your health data is yours. ClearFast operates 100% offline. We do not require an email, we do not use third-party analytics SDKs, and your data never leaves your device. If you delete the app, your data is gone forever. CORE FEATURES (100% Free) • Unrestricted Protocols: Track 16:8, 18:6, OMAD (23:1). • Butter-Smooth UI: A 60fps dark-mode timer built to look beautiful in a pitch-black room at 5 AM. • Local Notifications: Reliable end-of-fast reminders that don't rely on cloud servers. • Edit Start Times: Forgot to start your timer after dinner? Easily adjust your start time retroactively. • 7-Day History: View your current streak and rolling 7-day average. • Eating window countdown after you end a fast, so you know when the next one begins. • Meal notes: jot down what you broke your fast with. Optional, never nagged about. • Home Screen widget (live timer data inside it is a Premium feature). CLEARFAST PREMIUM (Optional) If you love the app and want to support an independent developer, ClearFast PREMIUM is for people who want the long-term record and the system integrations. Buy it once, or subscribe to it monthly, your call. • Unlimited Fasting History: Keep your data and view your long-term consistency. • Premium Aesthetics: Unlock custom accent colors to replace the default Teal. • Unlock Custom Plan: Set a custom fasting plan. • Custom Reminder Notification: Set multiple random time intervals to get a reminder notification (eg:-get reminder notification every 10min and 30min interval). • Compliance calendar: a year of fasting at a glance. • 30-day and all-time trend charts, filterable by completed versus ended early. • CSV and PDF export, meal notes included. • Custom fasting length, anywhere from 1 to 48 hours. • Weekly schedule: different targets on different days. • eating-window reminder notifications. • Live Activity on the Lock Screen and Dynamic Island, and live data in the Home Screen widget. • Custom alternate app icons. Experience fasting, simplified. Website:- https://www.useclearfast.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: InnerFast at none against ClearFast's 2. InnerFast also leads on update cadence (every 3 days vs every 4 months). ClearFast's advantage is iOS requirement (15.1 vs 17.0). On price, 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. ClearFast sells 2 in-app purchases, starting at $1.99 per month. InnerFast asks for nothing beyond the download.
InnerFast ships an update every 3 days, ClearFast every 4 months. Both last shipped on October 24, 2026.
| Parameter | InnerFast | ClearFast |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | S Boersma | Janardan Ayachi |
In-app purchases
InnerFast
No in-app purchases
ClearFast
- ClearFast Premium Monthly$1.991 Month
- ClearFast Lifetime$19.99









