Comparison

PureFast vs FastJoy

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

Head to head
About

PureFast

Features
Read full description

PureFast is the intermittent fasting timer for people who want more than a stopwatch. It's a metabolic-health companion with biohacking tools no other fasting app puts in one place. SMART FASTING TIMER Start 16:8, 18:6, 20:4, OMAD, or a fully custom fast, and watch your body move through the zones: Fat Burning, Ketosis, Deep Ketosis, Autophagy. Smart notifications keep you on track without nagging you. BIOHACKING SUITE โ€ข Cold-exposure timer โ€” stack cold with your fast โ€ข Caffeine tracking โ€” time your coffee so it supports the fast โ€ข HRV and circadian insights via Apple Health sync โ€ข Metabolic flexibility score that improves as you do STAY CONSISTENT Achievements, streaks, and level-ups turn fasting into a game you'll actually keep playing. Hydration tracking included. PRICING PureFast is free to download, with every feature unlocked for your first 30 days. After that, continued access requires a subscription: $1.99/month or $19.99/year. Cancel anytime. SUBSCRIPTION TERMS โ€ข Payment is charged to your Apple ID account at confirmation of purchase โ€ข Subscription automatically renews unless cancelled at least 24 hours before the end of the current period โ€ข Manage or cancel anytime in Settings โ†’ Apple ID โ†’ Subscriptions โ€ข Terms of Service: https://utlityapps.github.io/purefast-legal/terms.html โ€ข Privacy Policy: https://utlityapps.github.io/purefast-legal/privacy.html

About

FastJoy

Features
Read full description

FastJoy is the simple, private way to track intermittent fasting. Pick a protocol, start the timer, and watch your fasting and eating windows in real time โ€” no account, no paywall on the core timer, and everything stays on your device. WHY FASTWINDOW - Beautiful animated fasting timer with live elapsed time and progress ring - Choose 16:8, 18:6, 20:4, OMAD or a custom fasting window - Informational fasting stages as the hours add up (fat burning, ketosis, autophagy zone) - Current streak, today's eating window and target end time at a glance - Edit your start time anytime โ€” perfect when you forget to hit start TRACK EVERYTHING - Full history of every fast with met-goal status - GitHub-style consistency heatmap of your fasting days - Weekly fasting hours and calendar overview STATS & PROGRESS - Average fast length, longest fast, completion rate and streaks - Fast-duration trend chart and this-week-vs-last comparison - Patterns by weekday and start time of day - Optional weight log with a clean trend chart - Dozens of achievements to keep you motivated REMINDERS THAT HELP - Get notified the moment your fasting goal is reached - Optional "time to start fasting" and hydration reminders - 100% local notifications โ€” no servers, no tracking of your habits PRIVATE BY DESIGN - No sign-up, works fully offline - Optional Face ID / Touch ID lock - Export and import your data as JSON anytime - Available in English, Spanish, French, Italian, German and Portuguese FastJoy is a tracking aid only and does not provide medical or nutritional advice. Intermittent fasting is not suitable for everyone, including during pregnancy or with certain medical conditions. Consult a qualified healthcare professional before changing your eating patterns. Start your first fast today and build a routine that lasts.

Screenshots

PureFast4 screens
FastJoy4 screens

Verdict

The call

The clearest difference is in-app purchases: FastJoy at none against PureFast's 2. FastJoy also leads on iOS requirement (13.0 vs 17.0). PureFast's advantage is ads (none vs shown). On price and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

Scorecard3 real differences ยท 3 level
PureFast versus FastJoy: the parameters behind the verdict, then further details
ParameterPureFastFastJoy
PriceFreeFree
Update frequencyEvery 3 monthsโ€”
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.013.0 โ€” better
Further details โ€” not scored
Size4 MB41 MB
Age rating12+12+
DeveloperAanuoluwapo AjayiFerran Espuna

In-app purchases

2 purchases

PureFast

Subscriptions2
  • Premium Monthly1 Month trial$1.991 Month
  • Premium Yearly1 Month trial$19.991 Year
None

FastJoy

No in-app purchases

Questions

Is PureFast free?
PureFast is free to download, with in-app purchases available.
Is FastJoy free?
FastJoy is free to download, with no in-app purchases.
Do PureFast or FastJoy have ads?
FastJoy shows ads; PureFast does not.

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