Comparison

FastFlex Fasting Tracker 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

FastFlex Fasting Tracker

This app helps you visualize your intermittent fasting progress with a unique visual tracker. It offers various fasting schedules, comprehensive tracking tools, and motivational milestones to keep you engaged. Designed for both beginners and experienced fasters, it focuses on privacy and a clean, intuitive interface.

Highlights
  • Visual progress tracking
  • Multiple fasting schedules
  • Customizable fasting durations
  • Fasting timer with milestones
  • Journal for insights
  • Weight tracking
  • Color-coded history
Features
Read full description

FASTFLEX - YOUR FASTING TRACKER REIMAGINED Transform your fasting journey with FastFlex, the intuitive fasting tracker that turns willpower into visual progress. Whether you're practicing intermittent fasting for health, weight loss, or mental clarity, FastFlex makes every hour count. VISUALIZE YOUR PROGRESS Watch your willpower literally conquer hunger with our unique progress visualization. Every passing hour brings you closer to your goal, with dynamic milestones that celebrate your dedication along the way. FLEXIBLE FASTING OPTIONS - Popular fasting schedules: 12:12, 16:8, 18:6, 20:4, OMAD (23:1) - Custom fasting durations for your personal goals - Easy start time adjustment for perfect flexibility - Track multiple fasts with complete history COMPREHENSIVE TRACKING - Fasting Timer: Real-time countdown with milestone celebrations - Journal: Document your fasting experiences, energy levels, and insights - Weight Tracking: Monitor your progress with visual goal tracking - History: Calendar and list views of all your completed fasts MOTIVATIONAL MILESTONES FastFlex keeps you engaged with dynamic milestones throughout your fast: - Digesting phase - Early Fasting benefits - Glycogen Burning begins - Fat Burning accelerates - Ketosis achievement - Autophagy activation Each milestone shows exactly what's happening in your body, keeping you informed and motivated. SMART FEATURES - Color-coded history: Instantly see completed vs. broken fasts - Backdate fasts: Add historical fasts you've completed - Goal celebrations: Special recognition when you exceed targets - Local notifications: Get notified when you reach your goals - iCloud backup: Your data syncs automatically across devices PRIVACY FIRST FastFlex respects your privacy: - All data stored locally on your device - No accounts required - No tracking or data collection - Automatic iCloud backup for peace of mind DESIGNED FOR SUCCESS We built FastFlex with one goal: help you succeed at fasting. The interface is clean, intuitive, and focused on what matters - your progress. No clutter, no confusion, just powerful tracking that keeps you motivated. PERFECT FOR: - Intermittent fasting beginners - Experienced fasters seeking better tracking - Weight loss journeys - Health optimization - Mental clarity and focus - Metabolic health improvement SUBSCRIPTION FEATURES FastFlex Premium gives you full access to: - Unlimited fasting tracking - Complete journal with unlimited entries - Advanced weight tracking with progress visualization - Full history with calendar and list views - All current and future features JOIN THE FASTFLEX COMMUNITY Thousands of users are already transforming their health with FastFlex. Whether you're just starting intermittent fasting or you're a seasoned faster, FastFlex provides the tools and motivation you need to succeed. Download FastFlex today and discover how powerful visual progress can transform your fasting experience. --- SUBSCRIPTION DETAILS: - Monthly: $0.99/month - Annual: $9.99/year (Save 16%!) - Cancel anytime - Payment charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Account will be charged for renewal within 24 hours prior to the end of the current period - Subscriptions may be managed and auto-renewal may be turned off in Account Settings after purchase Privacy Policy: https://orkhanhasanbeck.github.io/fastflex-support/privacy.html Terms of Service: https://orkhanhasanbeck.github.io/fastflex-support/terms.html

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

FastFlex Fasting Tracker4 screens
Fasting Well4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Well at none against FastFlex Fasting Tracker's 2. FastFlex Fasting Tracker's advantage is update cadence (every 3 weeks vs every 3 months) and iOS requirement (15.1 vs 17.0). On price, rating, review sentiment and ratings volume 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. FastFlex Fasting Tracker sells 2 in-app purchases, starting at $0.99 per month. Fasting Well asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FastFlex Fasting Tracker against 5.0 for Fasting Well. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

FastFlex Fasting Tracker ships an update every 3 weeks, Fasting Well every 3 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

Scorecard3 real differences · 7 level
FastFlex Fasting Tracker versus Fasting Well: the parameters behind the verdict, then further details
ParameterFastFlex Fasting TrackerFasting Well
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings22
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size44 MB45 MB
Age rating4+4+
DeveloperOrkhan HasanbeckGeneralizable

Customer experience

FastFlex Fasting Tracker

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Fasting Well

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

FastFlex Fasting Tracker

Subscriptions2
  • FastFlex Premium Monthly$0.991 Month
  • FastFlex Premium Annual$9.991 Year
None

Fasting Well

No in-app purchases

Questions

Is FastFlex Fasting Tracker free?
FastFlex Fasting Tracker is free to download, with in-app purchases available.
Is Fasting Well free?
Fasting Well is free to download, with no in-app purchases.
Which has better reviews, FastFlex Fasting Tracker or Fasting Well?
FastFlex Fasting Tracker and Fasting Well are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do FastFlex Fasting Tracker or Fasting Well have ads?
Neither FastFlex Fasting Tracker nor Fasting Well shows ads.
Which is updated more often, FastFlex Fasting Tracker or Fasting Well?
FastFlex Fasting Tracker ships an update every 3 weeks, and Fasting Well every 3 months. Most recently, FastFlex Fasting Tracker was updated on October 7, 2026 and Fasting Well on September 28, 2026.

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