Comparison

TrueFast 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

TrueFast

Track your intermittent fasting journey with a clean, ad-free interface. Monitor your progress, set personalized goals, and access educational content. Offers seamless integration with Apple Watch and Lock Screen widgets for easy access.

Highlights
  • Fasting timer with elapsed and remaining time
  • Saved goals for common fasting plans
  • Schedules and reminders
  • History calendar, streaks, and badges
  • Lock Screen widgets and Apple Watch support
  • Fasting phase education
  • Local-first data storage
Features
Read full description

TrueFast is a simple intermittent fasting tracker built to stay out of your way. Start a fast, follow your saved goal, check your progress from your iPhone or Apple Watch, and review your fasting history without ads, social features, or clutter. Core features are free: • Fasting timer with elapsed and remaining time • Saved goals for common fasting plans • Schedules and reminders • History calendar, streaks, and badges • Lock Screen widgets, Home Screen widgets, Live Activities, and Apple Watch support • Fasting phase education with clear wellness context • Local-first data storage TrueFast Pro adds optional power-user tools: • iCloud sync across devices • Weight tracking with Apple Health • Advanced charts • CSV export • Custom themes and app icons • All future Pro features TrueFast is intended for adults. Fasting may not be appropriate for children, teens, pregnant or breastfeeding people, people with a history of eating disorders, or people with certain medical conditions. Consult a qualified healthcare professional before fasting. TrueFast does not provide medical advice, diagnosis, or treatment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://gettruefast.com/privacy-policy

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

TrueFast4 screens
Fasting Well4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting Well at none against TrueFast's 6. TrueFast's advantage is update cadence (every 6 days vs every 3 months). On price, rating, ratings volume and ads 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. TrueFast sells 6 in-app purchases, starting at $2.99 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 TrueFast against 5.0 for Fasting Well. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

TrueFast ships an update every 6 days, Fasting Well every 3 months. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 8 level
TrueFast versus Fasting Well: the parameters behind the verdict, then further details
ParameterTrueFastFasting Well
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 6 days — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size6 MB45 MB
Age rating17+4+
DeveloperEvan MattsonGeneralizable

Customer experience

TrueFast

All ratings1 ratings
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

6 purchases

TrueFast

Subscriptions2
  • TrueFast Pro Monthly$2.991 Month
  • TrueFast Pro Yearly$19.991 Year
One-time4
  • Buy Us a Coffee$1.99
  • Power the Fast$4.99
  • Super Supporter$9.99
Show 1 more
  • TrueFast Pro (Lifetime)$29.99
None

Fasting Well

No in-app purchases

Questions

Is TrueFast free?
TrueFast 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, TrueFast or Fasting Well?
TrueFast and Fasting Well are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do TrueFast or Fasting Well have ads?
Neither TrueFast nor Fasting Well shows ads.
Which is updated more often, TrueFast or Fasting Well?
TrueFast ships an update every 6 days, and Fasting Well every 3 months. Most recently, TrueFast was updated on September 15, 2026 and Fasting Well on September 10, 2026.

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