Comparison

ClearFast vs Fasting Well

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ClearFast

Read full description

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/

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

ClearFast4 screens
Fasting Well4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Well at none against ClearFast's 2. ClearFast's advantage is iOS requirement (15.1 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ClearFast sells 2 in-app purchases, starting at $1.99 per month. Fasting Well asks for nothing beyond the download.

UpkeepUpdate frequency

ClearFast ships an update every 4 months, Fasting Well every 3 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
ClearFast versus Fasting Well: the parameters behind the verdict, then further details
ParameterClearFastFasting Well
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size40 MB45 MB
Age rating4+4+
DeveloperJanardan AyachiGeneralizable

In-app purchases

2 purchases

ClearFast

Subscriptions1
  • ClearFast Premium Monthly$1.991 Month
One-time1
  • ClearFast Lifetime$19.99
None

Fasting Well

No in-app purchases

Questions

Is ClearFast free?
ClearFast is free to download, with in-app purchases available.
Is Fasting Well free?
Fasting Well is free to download, with no in-app purchases.
Do ClearFast or Fasting Well have ads?
Neither ClearFast nor Fasting Well shows ads.
Which is updated more often, ClearFast or Fasting Well?
ClearFast ships an update every 4 months, and Fasting Well every 3 months. Most recently, ClearFast was updated on September 18, 2026 and Fasting Well on September 10, 2026.

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