Comparison

Fasting interval 16 vs Fast

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

Head to head
About

Fasting interval 16

This app helps you track your intermittent fasting schedule. Simply input your fasting start time, and it will monitor your progress and notify you when your fasting interval concludes. It's designed to support your intermittent fasting journey.

Highlights
  • Intermittent fasting tracking
  • Fasting start time input
  • Fasting interval end notification
  • Supports 16:8 fasting schedule
  • Proven effectiveness support
Features
Read full description

Intermittent fasting is not a new trend. In fact, interval fasting has been well researched and its effectiveness is proven. With this app we would like to support you. Just enter the start time and the app will tell you exactly how long you've been fasting and when your fasting interval ends.

About

Fast

This app helps you track intermittent fasting routines, monitor progress, and analyze health data. It offers educational content, motivational challenges, and a journal to record your feelings. Connect with friends for support and motivation on your wellness journey.

Highlights
  • Fasting timer and tracker
  • Progress analytics and history
  • Educational 'Know It' section
  • Motivational challenges and trophies
  • Mood tracker and journal
  • Health app integration (steps)
  • Fasting buddy feature
Features
Read full description

Fast: Fasting Tracker & Timer helps you build consistent fasting habits with flexible fasting plans, body weight logging, water intake tracking, reminders, and detailed progress insights. Whether you're new to intermittent fasting or already following a routine, the app provides the tools to stay organized and work toward your personal health and wellness goals. Choose a fasting plan, customize your schedule, and track every fast in one place with an easy-to-use fasting tracker. FASTING PLANS Find a fasting schedule that works for your lifestyle. Choose from 12:12, 13:11, 14:10, 15:9, 16:8, 17:7, 18:6, 19:5, 20:4, 21:3, 22:2, 23:1, MWF, TTS, or create your own custom fasting plan. Whether you're starting intermittent fasting or maintaining an existing routine, you can choose a plan that suits your goals. FASTING TRACKER & TIMER Track active and completed fasts with an intuitive fasting tracker and timer. Review your fasting history and monitor your consistency over time. BODY WEIGHT & WATER TRACKING Log your body weight and monitor changes throughout your fasting routine. Track your daily water intake to stay hydrated and build healthier habits alongside your fasting schedule. SMART REMINDERS Stay on schedule with fasting reminders and water intake reminders. Customize notifications to help you start and end your fasting window on time while maintaining your daily hydration routine. ANALYTICS & HISTORY Review your fasting sessions, body weight, hydration logs, activity, and history with easy-to-understand analytics that help you monitor your progress and stay consistent. INFORMATIVE BLOGS Learn more about intermittent fasting through informative blogs covering healthy habits, wellness topics, and practical guidance to help you better understand your fasting routine. FASTING BUDDIES Stay motivated by fasting together. Invite friends, track each other's progress, and encourage one another throughout your fasting journey with the Buddy feature. ACTIVITY SUPPORT Sync your activity data to keep your fasting progress and daily activity organized in one place for a more complete overview of your routine. Whether you're following a 16:8 fasting schedule, exploring different intermittent fasting plans, or creating a custom fasting routine, Fast: Fasting Tracker & Timer gives you the tools to stay organized and build lasting healthy habits. DISCLAIMER This app is intended for informational and lifestyle purposes only and does not provide medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before starting any fasting routine, especially if you have an existing medical condition, are pregnant, or have specific dietary requirements. PRIVACY POLICY https://maximaapps.com/fasting/privacy_policy.html TERMS OF USE https://maximaapps.com/fasting/terms-of-use.html GET IN TOUCH Have questions, feedback, or suggestions? We'd love to hear from you. Contact us through the app or email us at feedback@maximaapps.com.

Screenshots

Fasting interval 164 screens
Fast4 screens

Verdict

The call

The clearest difference is in-app purchases: Fasting interval 16 at none against Fast's 8. Fasting interval 16 also leads on update cadence (weekly vs every 2 months) and iOS requirement (11.0 vs 18.6). Fast's advantage is review sentiment (75% vs 50%). On price, ads and device support 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. Fast sells 8 in-app purchases, starting at $4.99 per month. Fasting interval 16 asks for nothing beyond the download.

UpkeepUpdate frequency

Fasting interval 16 ships an update weekly, Fast every 2 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Fasting interval 16 versus Fast: the parameters behind the verdict, then further details
ParameterFasting interval 16Fast
PriceFreeFree
Rating—4.7 (3.3K ratings) — better
Positive reviews50.0% of reviews74.6% of reviews — better
Number of ratings—3.3K — better
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS11.0 — better18.6
Further details — not scored
Size25 MB116 MB
Age rating12+12+
DeveloperDirk StorjohannMaxima Apps

Customer experience

Fasting interval 16

Written reviews6 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Fast

All ratings3,300 ratings
Positive91.8%
Neutral4.8%
Negative3.5%
Written reviews189 reviews
Positive74.6%
Neutral10.6%
Negative14.8%

Bugs and requests

Fasting interval 16

Not enough reviews yet to summarise bugs or requests.

Fast

Reported bugs

3 issues
  • Timer not accurately recording fasting times
  • Inability to update weight in app
  • Crashing when trying to view friend's status

Requested features

4 requests
  • Option to edit fasting start/end times
  • More detailed analytics and progress tracking
  • Improved syncing and data saving reliability
  • Expanded customization options

In-app purchases

None

Fasting interval 16

No in-app purchases

8 purchases

Fast

Subscriptions6
  • Fast Premium Monthly$4.991 Month
  • Fasting Monthly$14.991 Month
  • Fasting Annually$19.991 Year
Show 3 more
  • Fasting Premium$27.993 Months
  • Fast Premium Yearly$29.991 Year
  • Fasting Premium Yearly$39.991 Year
One-time2
  • Fasting One Time Special Offer$19.99
  • Fasting Pro$49.99

Questions

Is Fasting interval 16 free?
Fasting interval 16 is free to download, with no in-app purchases.
Is Fast free?
Fast is free to download, with in-app purchases available.
Do Fasting interval 16 or Fast have ads?
Neither Fasting interval 16 nor Fast shows ads.
Which is updated more often, Fasting interval 16 or Fast?
Fasting interval 16 ships an update weekly, and Fast every 2 months. Most recently, Fasting interval 16 was updated on November 3, 2026 and Fast on November 3, 2026.

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