FastZen: Intermittent Fasting
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperMefjuDev LLC
CategoryHealth & Fitness
PriceFree
Released
Rating★ 5.0 (9)
Version2.0.8
Age rating4+
First seen by us
24 Oct 2026
Rating
5.0 ★
9 ratings
Measured
FastZen: Intermittent Fasting on the App Store
App details
App ID
6744087602
Publisher
MefjuDev LLC
On the store since
Apr 2025
1 year on the store
Minimum OS
iOS 26.0+
iPhone 11 and later
Devices
iPhone · iPad
Content rating
4+
Languages
11
EN FR DE IT JA KO PT ZH ES ZH VI
Size
28 MB
Also listed in
Lifestyle
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
9 ratings
Measured
Ratings
9
Measured
About FastZen: Intermittent Fasting
Fasting made simple — and actually enjoyable.
FastZen is a beautifully designed intermittent fasting tracker that helps you reach your goals with 16:8, 18:6, 20:4, OMAD and extended fasts. Whether you want to lose weight, build healthier habits or simply feel better, FastZen keeps you motivated from your first hour to your finish line.
WHY YOU'LL LOVE FASTZEN
• EFFORTLESS TRACKING — Start any fast in one tap. A live countdown and a smooth progress ring show exactly where you are.
• LOCK SCREEN & DYNAMIC ISLAND — Follow your fast at a glance with Live Activities, without even opening the app.
• APPLE HEALTH SYNC — Fasting sessions and your weight are saved to Apple Health automatically.
• BODY TRACKING — Log your weight and water intake and watch your progress trend over time.
• 16 PROTOCOLS + CUSTOM PLANS — From beginner-friendly 12:12 and 16:8 to 24, 48 and 72-hour fasts — or create your own schedule.
• SMART REMINDERS — Get notified when your eating window opens and closes, and never miss the end of a fast.
• CHALLENGES & STREAKS — Stay consistent with weekly challenges and keep your streak alive.
• PROGRESS YOU CAN SEE — Weekly charts, a calendar heatmap and clear stats show how far you've come.
• PRIVACY FIRST — Your fast is hidden when you switch apps, and you can export your data anytime.
HOW IT WORKS
1. Answer a few quick questions so we can tailor a plan to your goals.
2. Pick your protocol — 16:8, 20:4, OMAD or fully custom.
3. Start your first fast and let FastZen handle the rest.
FASTZEN PREMIUM
FastZen is a subscription app. Every plan begins with a 7-day free trial, and you can cancel anytime in your App Store account settings before the trial ends. Your fasts, history and progress stay saved across all your devices via iCloud.
Terms of Use: https://sites.google.com/view/mefjudevllc/terms-conditions
Privacy Policy: https://sites.google.com/view/mefjudevllc/privacy-policy
FastZen is a beautifully designed intermittent fasting tracker that helps you reach your goals with 16:8, 18:6, 20:4, OMAD and extended fasts. Whether you want to lose weight, build healthier habits or simply feel better, FastZen keeps you motivated from your first hour to your finish line.
WHY YOU'LL LOVE FASTZEN
• EFFORTLESS TRACKING — Start any fast in one tap. A live countdown and a smooth progress ring show exactly where you are.
• LOCK SCREEN & DYNAMIC ISLAND — Follow your fast at a glance with Live Activities, without even opening the app.
• APPLE HEALTH SYNC — Fasting sessions and your weight are saved to Apple Health automatically.
• BODY TRACKING — Log your weight and water intake and watch your progress trend over time.
• 16 PROTOCOLS + CUSTOM PLANS — From beginner-friendly 12:12 and 16:8 to 24, 48 and 72-hour fasts — or create your own schedule.
• SMART REMINDERS — Get notified when your eating window opens and closes, and never miss the end of a fast.
• CHALLENGES & STREAKS — Stay consistent with weekly challenges and keep your streak alive.
• PROGRESS YOU CAN SEE — Weekly charts, a calendar heatmap and clear stats show how far you've come.
• PRIVACY FIRST — Your fast is hidden when you switch apps, and you can export your data anytime.
HOW IT WORKS
1. Answer a few quick questions so we can tailor a plan to your goals.
2. Pick your protocol — 16:8, 20:4, OMAD or fully custom.
3. Start your first fast and let FastZen handle the rest.
FASTZEN PREMIUM
FastZen is a subscription app. Every plan begins with a 7-day free trial, and you can cancel anytime in your App Store account settings before the trial ends. Your fasts, history and progress stay saved across all your devices via iCloud.
Terms of Use: https://sites.google.com/view/mefjudevllc/terms-conditions
Privacy Policy: https://sites.google.com/view/mefjudevllc/privacy-policy
Latest updates
2.0.8
- New Body tab: track your weight and water intake alongside your fasting
- Live Activities: your fast timer now runs on the Lock Screen and Dynamic Island
- Apple Health sync: fasting sessions and weight automatically saved to Health
- Rebuilt History tab with clearer stats and insights
- Brand new onboarding experience with a personalized plan
- Haptic feedback throughout the app
- Privacy screen: your fast is hidden when you switch apps
- Export your data anytime
- Performance improvements and bug fixes