Comparison

Wow Intermittent Fasting 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

Wow Intermittent Fasting

Features
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No account. No sign-up, no email, no password. The timer is never locked, and you can cancel a subscription in your iPhone settings โ€” not on some website. Pick a plan, start the clock, and see at a glance how long is left and which stage your body is in. WHAT YOU GET โ€ข Fasting clock โ€” a 24-hour dial with your fasting and eating windows and a live countdown. Stop, pause and restart it whenever life happens. โ€ข Body stages โ€” digesting, sugar settling, stores running low, fat burning, longer fast. Plain language, approximate hours, no promises. โ€ข Plans from 12:12 to 23:1 โ€” start gentle and tighten when you are ready, or take the one the app suggests from your answers. โ€ข A break โ€” ill, travelling or on holiday? Pause the plan for a week or two without losing your streak. โ€ข Lock Screen widget and Live Activity โ€” how long is left, without opening the app. โ€ข Reminders โ€” an hour before your fast starts, when it starts, an hour before it ends, and when it ends. โ€ข Water and weight โ€” count your glasses, log your weight, watch the curve move toward your goal. โ€ข Apple Health โ€” your weight is read and written back, with your permission. โ€ข Backup in your own iCloud โ€” change your phone and your history is still there. Nothing is sent to us. โ€ข Dark theme and the system text size, including the largest accessibility sizes. โ€ข Eight languages: English, Russian, Ukrainian, Polish, Spanish, Japanese, Korean and Chinese. FREE FOREVER The timer, your plan, the body stages, breaks, reminders, water, weight, the recipes, your streak and the last seven days of history. PREMIUM Your whole history โ€” hours by month and year, your weight against your fasting, hours spent in fat burning โ€” plus a different length for each day of the week and a weekly suggestion from your own days. Premium is a subscription of one month, three months or a year, with a free trial, or a one-time purchase if you prefer. Payment is charged to your Apple Account at confirmation. A subscription renews automatically unless you turn renewal off at least 24 hours before the period ends. Manage or cancel it in your iPhone settings, under your Apple Account. PLEASE NOTE This app is not a medical device and does not give medical advice. Intermittent fasting is not suitable for everyone. Consult your doctor before you start, especially if you are pregnant or breastfeeding, under 18, have diabetes, an eating disorder or any chronic condition. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://vladislava9009.github.io/wow-fasting-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

Wow Intermittent Fasting4 screens
FastJoy4 screens

Verdict

The call

The clearest difference is in-app purchases: FastJoy at none against Wow Intermittent Fasting's 4. FastJoy also leads on iOS requirement (13.0 vs 15.1). Wow Intermittent Fasting'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. Wow Intermittent Fasting sells 4 in-app purchases, starting at $4.99 per month. FastJoy asks for nothing beyond the download.

Scorecard3 real differences ยท 3 level
Wow Intermittent Fasting versus FastJoy: the parameters behind the verdict, then further details
ParameterWow Intermittent FastingFastJoy
PriceFreeFree
Update frequencyEvery 2 daysโ€”
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.113.0 โ€” better
Further details โ€” not scored
Size47 MB41 MB
Age rating4+12+
DeveloperVladyslava OstapchukFerran Espuna

In-app purchases

4 purchases

Wow Intermittent Fasting

Subscriptions3
  • Premium for a month$4.991 Month
  • Premium for 3 months$9.993 Months
  • Premium for a year7 Days trial$24.991 Year
One-time1
  • Premium forever$39.99
None

FastJoy

No in-app purchases

Questions

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

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