Comparison

Fastin vs Simple Fasting app

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

Head to head
About

Fastin

This app guides you through intermittent fasting for weight loss and improved health. It offers personalized plans, tracking tools for food, weight, water, sleep, and activity, along with educational courses on fasting and nutrition. Visualize your progress with detailed statistics to stay motivated on your journey.

Highlights
  • Personalized fasting plans
  • Food, weight, water, sleep, and activity tracking
  • Fasting and nutrition courses
  • Progress statistics and charts
  • Step-by-step fasting guidance
  • Meal journal for mindful eating
Features
Read full description

Do you know how to lose weight and keep it for a lifetime? We have no way to exercise for 3 hours a day, weigh food, and count calories anytime. But we can control when to eat to Lose Weight which is FASTING. All you need to do is shift eating time to lose weight. The most popular and healthy way to lose weight from our wise ancients. Let’s guide you on how to start your fasting journey. Fastin: Intermittent Fasting is a simple fasting app, a powerful weight-loss tool. Lose weight, improve your health and simplify your lifestyle. Intermittent fasting has a powerful effect on your body and brain and may help you live a longer, healthier life. Intermittent fasting(IF) doesn’t specify which foods you should eat, but rather when you should eat them. Learn the science behind intermittent fasting(IF) so you can use it to achieve your goals. LIVE LONGER & LOOK BETTER HOW WE HELP YOU MASTER INTERMITTENT FASTING Fasting guidance A step-by-step guide to intermittent fasting Smart and flexible tracking tools that adapt to your needs Body status shows you what’s happening to your body when fasting Personalized fasting plans based on your body condition (6 plans available) Fasting Tools Food Tracker: log every meal and snack, view food values and trends and gain insights into our nutrition course Weight Tracker: record weight changes to reach your ideal weight Water Tracker: track consumption and stay hydrated Sleep tracker: aim to sleep to lose more weight Activity Tracker: track daily activity and motivate yourself to move a little more Reminders: hit every mini-goal to reach your dream target Fasting & Nutrition Courses Knowledge library for intermittent fasting and nutrition Professional content on nutrition, learn to choose the right foods Easy-to-use meal journal for mindful eating Boost your immune system, become stronger than ever Fasting Statistics(For insights & motivation) Visualize your fasting process and track changes in charts Reveal the patterns of your fasting process and body performance Find physiological harmony - Intermittent fasting connects body, mind & soul with your weight Get inspiring and self-reflective statistics - stay motivated. DISCLAIMER Intermittent fasting is a change in eating habits. It is not suitable for pregnant/nursing women, children under 18 years of age, or people with diagnosed eating disorders. Consult your doctor or health care professional. *Individual results may vary, and testimonials are not claimed to represent typical results. HEALTH APP INTEGRATION: Fastin: Intermittent Fasting - Simple Fasting App integrates with Apple Health App so you can sync your data (requires iOS 9 and above). Fastin: Intermittent Fasting also supports Face ID for security. SUBSCRIPTION POLICY Get full access to all the features and your personalized fasting plan including a nutrition guide in the Fastin: Intermittent Fasting app with an in-app purchase. Plans: $6.99 Weekly, $19.99 Quarterly Payment: Payment will be charged to your Apple account on confirmation of purchase Cancellation: Manage at your Apple Account Settings Renewal: Account will be charged for renewal 24-hours before the end of the current period TERMS & POLICY Privacy: https://s.bongmi.cn/miscs/fasting-app/en/privacy.html Service: https://s.bongmi.cn/miscs/fasting-app/en/service.html Download Fastin: Intermittent Fasting - Simple Fasting App to help you reach your goals faster and more effectively! Establish a basic eating discipline, keep yourself in good shape during self-isolation and use our educational and motivational content to stay mindful of your eating habits. Our mission is not only to offer you an Intermittent Fasting App, but also to improve your health, increase weight loss, and improve cognitive ability. Download Intermittent Fasting Tracker now. Start your new journey today!

About

Simple Fasting app

Read full description

Stay consistent with this fasting app using a clean timer, multiple fasting plans, and progress tracking that keeps you motivated. Simple Fasting App helps you start a fast in seconds, track your elapsed and remaining time, and build streaks without distractions. Choose from popular plans like 12:12, 14:10, 16:8, 18:6, 20:4, OMAD, or create your own custom plan. Your progress is tracked automatically so you always know how far you’ve come. Whether you’re fasting for routine, focus, or lifestyle, this intermittent fasting app keeps things simple and easy to follow. Features Clean fasting timer with progress ring Popular fasting plans + custom plan option Live tracking with elapsed and remaining time Streaks, longest fast, and total fasting time Progress calendar to track consistency Widgets to view progress instantly Notifications to remind you when your fast starts or ends Premium Upgrade to Premium to remove ads and unlock extra features like widgets. Designed to be minimal, fast, and easy to use. Terms - https://northernmonkey.thegigletter.com/terms/ Privacy policy - https://northernmonkey.thegigletter.com/privacy-policy/

Screenshots

Fastin4 screens
Simple Fasting app4 screens

Verdict

The call

The clearest difference is ads: Fastin at none against Simple Fasting app's shown. On price, update cadence, in-app purchases 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. Fastin sells 10 in-app purchases, starting at $4.49 per 7 days and Simple Fasting app sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fastin ships an update every 3 weeks, Simple Fasting app every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
Fastin versus Simple Fasting app: the parameters behind the verdict, then further details
ParameterFastinSimple Fasting app
PriceFreeFree
Rating4.8 (10K ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings10K — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS16.6 — better17.6
Further details — not scored
Size243 MB8 MB
Age rating17+9+
DeveloperBongmi Global GroupAvirath Pinjarkar

Bugs and requests

Fastin

Reported bugs

4 issues
  • Fasting timer resets unexpectedly
  • App crashes or freezes
  • Sync and login issues
  • Inability to edit past fasts

Requested features

6 requests
  • Ability to scan barcodes for nutrition info
  • More recipes and meal planning options
  • Integration with fitness trackers
  • Customizable fasting schedules
  • Better data tracking and analysis
Show 1 more
  • Improved customer support

Simple Fasting app

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Fastin

Subscriptions10
  • FastingPrime1Weekly3 Days trial$4.497 Days
  • PrimeWeekly$6.997 Days
  • Fasting Prime3 Days trial$6.997 Days
Show 7 more
  • PrimeMonthly2 variants$9.991 Month
  • PrimeWeekly$9.997 Days
  • Fasting Prime3 Days trial$9.991 Month
  • PrimeQuarterly2 variants$19.993 Months
  • Fasting Prime7 Days trial$29.991 Year
  • PrimeQuarterly$29.993 Months
  • PrimeYearly$49.991 Year
2 purchases

Simple Fasting app

Subscriptions2
  • Monthly - 30 Days3 Days trial$1.991 Month
  • Annual Plan$19.991 Year

Questions

Is Fastin free?
Fastin is free to download, with in-app purchases available.
Is Simple Fasting app free?
Simple Fasting app is free to download, with in-app purchases available.
Do Fastin or Simple Fasting app have ads?
Simple Fasting app shows ads; Fastin does not.
Which is updated more often, Fastin or Simple Fasting app?
Fastin ships an update every 3 weeks, and Simple Fasting app every 2 weeks. Most recently, Fastin was updated on October 29, 2026 and Simple Fasting app on October 25, 2026.

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