Comparison

Fasting Secret vs Intermittent

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

Head to head
About

Fasting Secret

This app helps you track your fasting periods, monitor your weight, and record body measurements. It offers features for manual or scheduled fasts, progress visualization, and motivational tools to support your health and weight loss goals.

Highlights
  • Manual and scheduled fasting periods
  • Weight and body measurement tracking
  • Progress visualization with graphs
  • Daily notes for motivation
  • Data export to text files
  • Multi-user support with privacy locks
Read full description

The secret to successful weight loss and long term maintenance has long since been sought by millions of people around the world, and we'll try anything to drop a few pounds if someone claims to have lost weight using a 'new method'. In truth, different things work for everyone, but wouldn't you like to lose weight and improve your general health and well-being with very little effort? The secret……………. is fasting. Research conducted around Intermittent Fasting has shown how fasting can be used to safely lose weight, help increase overall health and resistance to disease, but more importantly keep the weight off without going down the route of conventional dieting which can often lead to feelings of deprivation and ultimately feelings of diet failure. Fasting has been used for thousands of years and is one of the oldest therapies in medicine. It's also been used in most religions in the world for mental and spiritual clarity, but fasting has been used to help with chronic conditions including allergies, diabetes, heart disease, high cholesterol (under doctors recommendation and supervision). Whether you're using Fasting Secret to lose weight, improve your general health or for spiritual reasons, we have a wealth of features to make your fasting a success. For no cost, you can:- * Manually start and stop a fasting period. * Fasting periods are tracked and easily viewed. * Configure the Home Screen Dashboard to show information relevant to you. * Use the Weight Graph Dashboard to view your process at a glance. * Calendar view which indicates any activity entered and when a day is selected any activity entered is listed for easy reference. * Record and monitor your weight, height and body fat. * Enter daily notes to help motivate you. If your motivation for fasting is mainly weight loss our PRO UPGRADE is packed with the following great features and motivational tools:- * No adverts. * Ability to schedule automatic fasting periods with reminders for the start and end of the fasting period. * Ability to schedule fasts with any start time and duration. * Ability to specify that manual fasts started in the past. * Set a weight loss goal and view your statistics and milestones achieved as you progress. * Create your own body measurements and track the changes. * Multi user capability with passcode locking for each user's for privacy. * Export your data to text tiles and spreadsheets. There are different types of Fasts and this app can be used when following plans such as : Intermittent Fasting, Alternate Day Fasting, The 5:2 Method, 24hr fasts, JUDDD, Johnson, 16:8 and more

About

Intermittent

This app tracks your fasting progress by showing real-time biological phases like ketosis and autophagy. It provides science-backed explanations for each stage and supports various fasting protocols without requiring an account or subscription.

Highlights
  • Real-time biological phase tracking (Fed, Lipolysis, Ketosis, Autophagy)
  • Support for multiple fasting protocols (12:12 to 72-hour fasts)
  • Free science library with cited primary sources
  • Adaptive hydration target
  • Weight and progress tracking with trend analysis
  • Private sharing circle with applause-only responses
  • Home screen widget and cross-device sync
Features
Read full description

The intermittent fasting timer that shows which fasting phase you have likely reached, from fat burning lipolysis to ketosis and autophagy, based on how long you have fasted. Ad free. No account required. Most fasting apps give you a countdown clock and a streak to protect. Intermittent does something different. It maps your hours fasted to the phases research describes, and explains the science behind each one with cited primary sources, not marketing copy. If you have ever wondered how to track fasting properly, or what is likely happening during a fast, this is the fasting tracker built for that question. WHY FASTING WORKS Intermittent fasting works because of what happens between meals, not just the absence of food. As your fast progresses, your body moves through distinct phases: burning through glucose reserves, shifting into fat burning lipolysis, entering ketosis, and eventually triggering autophagy, the cellular repair process linked to longevity and metabolic health. Understanding these transitions is what separates intentional fasting from guesswork. Intermittent maps every stage so your goals are grounded in biology, not motivation. KEY FEATURES PHASE AWARE FASTING TIMER A live timer that maps your fast to six phases: Fed, Early Fasting, Lipolysis, Ketosis, Autophagy, and Deep Fast. Each phase links to a free science article with primary sources cited. EVERY FASTING PROTOCOL, ONE APP Supports 12:12, 14:10, 16:8, 18:6, 20:4, OMAD (One Meal A Day), 36 hour, 48 hour, and 72 hour fasts. FREE FASTING SCIENCE LIBRARY A full library of fasting articles covering intermittent fasting, ketosis, autophagy, insulin response, and more. No subscription. No account. No paywall. SMART HYDRATION TARGET A science backed hydration goal that adapts to your weight, sex, age, and fasting duration. WEIGHT AND PROGRESS TRACKING Log your weight after each fast and track trends over time. Includes streak heatmap, phase reach history, and estimated fat vs glucose energy usage. PRIVATE CIRCLE AND END OF FAST REFLECTION Share your fast with a small private group. Applause only responses. No comparison. No gamification. HOME SCREEN WIDGET AND CROSS DEVICE SYNC Keep your fasting timer visible with a home screen widget. Your data syncs across devices privately without third party trackers. EATING WINDOW, REMINDERS AND RECAPS See your eating window after each fast, with an optional heads-up before it closes. Set your usual start time for a gentle reminder. Look back on each month and year with a recap you can share. WHO IT IS FOR Intermittent is built for adults who want to understand fasting, not be coached through it. If you follow research on metabolic health, read about longevity, or want a fasting routine grounded in biology rather than points or streaks, this app is for you. Suitable for both beginners and experienced fasters. HOW IT WORKS Choose your fasting protocol, from 12:12 to extended fasts Start your timer and see which phase you have likely reached Tap any phase to read the science and log your reflection at the end No account required to start. No subscription required to access the library.

Screenshots

Fasting Secret4 screens
Intermittent4 screens

Verdict

The call

The clearest difference is in-app purchases: Intermittent at none against Fasting Secret's 1. Intermittent also leads on review sentiment (100% vs 68%) and rating (5.0 vs 4.6). Fasting Secret's advantage is ratings volume (1.6K vs 48) and iOS requirement (10.0 vs 15.0). On price, update cadence, 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. Fasting Secret sells 1 one-off in-app purchase. Intermittent asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Intermittent holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Fasting Secret has 1.6K ratings behind it against 48, so its average is the more settled of the two. Written reviews point the same way: 68% of Fasting Secret's written reviews are positive against 100% of Intermittent's.

UpkeepUpdate frequency

Fasting Secret ships an update every 3 weeks, Intermittent every 2 weeks. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
Fasting Secret versus Intermittent: the parameters behind the verdict, then further details
ParameterFasting SecretIntermittent
PriceFreeFree
Rating4.6 (1.6K ratings)5.0 (48 ratings) — better
Positive reviews67.8% of reviews100.0% of reviews — better
Number of ratings1.6K — better48
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better15.0
Further details — not scored
Size28 MB47 MB
Age rating4+4+
DeveloperFenlander Software Solutions LtdRohit Kumar

Customer experience

Fasting Secret

All ratings1,562 ratings
Positive91.0%
Neutral4.9%
Negative4.2%
Written reviews177 reviews
Positive67.8%
Neutral6.8%
Negative25.4%

Intermittent

All ratings48 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fasting Secret

Reported bugs

4 issues
  • Timer resets unexpectedly
  • Can't edit active fast
  • Goal date not working
  • Upgrading issues

Requested features

5 requests
  • Ability to record past fasts
  • Scheduled fasts with alerts
  • Sync with Health app
  • Water tracking
  • Fasting benefits info

Intermittent

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Fasting Secret

One-time1
  • Pro Upgrade$1.99
None

Intermittent

No in-app purchases

Questions

Is Fasting Secret free?
Fasting Secret is free to download, with in-app purchases available.
Is Intermittent free?
Intermittent is free to download, with no in-app purchases.
Which has better reviews, Fasting Secret or Intermittent?
Intermittent is rated higher. Fasting Secret averages 4.6 out of 5 from 1.6K ratings, while Intermittent averages 5.0 from 48 ratings.
Do Fasting Secret or Intermittent have ads?
Neither Fasting Secret nor Intermittent shows ads.
Which is updated more often, Fasting Secret or Intermittent?
Fasting Secret ships an update every 3 weeks, and Intermittent every 2 weeks. Most recently, Fasting Secret was updated on October 20, 2026 and Intermittent on October 28, 2026.

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