Comparison

Fasting vs Intermittent Fasting

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

Head to head
About

Fasting

This app helps you manage your intermittent fasting plan with a sleek and intuitive interface. Track your fasts, set custom goals, and monitor progress without personal data collection. It's designed for both beginners and experienced fasters.

Highlights
  • Intermittent fasting plan management
  • Track fasts
  • Set custom goals
  • Monitor progress
  • Sleek and intuitive UI
  • Privacy-focused, no personal data collection
Features
Read full description

Fasting is a calmer way to keep time. No noise, no pressure — just a clear timer, simple plans, and gentle reminders that help you find your rhythm and keep it going. Now completely remastered, with a new design, Apple Watch, and Apple Health. SIMPLE FASTING PLANS Start with a popular plan like 16:8, 18:6, or 20:4, or set your own fasting window. One tap to start, one tap to finish. KNOW WHERE YOU ARE A clear progress ring shows how far you've come and which fasting phase you're in, so every hour has meaning. PHASE REMINDERS Gentle notifications when you reach a new phase or your eating window opens — never nagging, always on your schedule. APPLE WATCH Start, check, and end fasts right from your wrist. Glance at your progress without reaching for your phone. APPLE HEALTH SYNC Your fasts and weight stay together with the rest of your health data, in one place you trust. CALORIE ESTIMATES See how your eating windows add up, without the stress of strict counting. HEALTH TRENDS Look back on your history, streaks, and progress over time, and see the habits you're building. PRIVATE BY DESIGN Your fasting data is personal. Fasting keeps it that way. FASTING PRO Unlock all premium features with an optional subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel anytime in your App Store account settings. — Fasting is designed for general wellness and is not medical advice. Please consult a healthcare professional before starting a fasting routine, especially if you are pregnant, have a medical condition, or take medication. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Intermittent Fasting

This app tracks both your fasting periods and your eating windows, offering a unique dual-countdown feature. It visualizes metabolic phases like fat burning and ketosis, supports various fasting methods, and provides insights into your progress. It's designed to be user-friendly and privacy-conscious, working entirely offline.

Highlights
  • Eating window countdown
  • Fasting phases visualization
  • Support for multiple fasting methods
  • Streak tracking with grace periods
  • Pattern insights
  • Weight and BMI tracking
  • Smart notifications
  • 100% offline functionality
Features
Read full description

Free · Works offline · No account needed. JustFast is a simple intermittent fasting app and fasting timer for everyday use. Pick a 16:8, 18:6 or OMAD plan, tap start, and see how much time is left of your fast and of your eating window. No account and no long setup: your first fast starts in seconds. New to intermittent fasting? A plan like 16:8 means 16 hours of fasting followed by an 8-hour eating window. Many beginners start with 12:12 or 14:10 and move to 16:8 or 18:6 when it feels comfortable. JustFast explains each plan in plain words and lets you switch at any time. FREE FOREVER • The fasting timer and every plan, including open-ended and 36, 48 and 72-hour fasts • Reminders and the widget • Water tracking • History, fasting phases, edits and adding a past fast START IN SECONDS • Presets from 8 to 24 hours, including 12:12, 14:10, 16:8, 18:6 and 20:4 • OMAD (one meal a day, 23:1) • Extended 36, 48 and 72-hour fasts • Custom fasts of any length • Open-ended fasts that count up until you decide to stop • Edit the start time if you forgot to press start, or add a past fast later FASTING PHASES Follow the approximate phases of a fast, hour by hour, right on the timer. The phase times are general guidelines that vary from person to person. They are not medical advice. EATING WINDOW COUNTDOWN When a fast ends, JustFast counts down your eating window as well, so you always know how much time you have left to eat before your next fast. WEEKLY PLAN AND WEEKLY REVIEW Plan which days you fast and for how long. Each week, a short Weekly Review shows what you completed and suggests a calm next step. No guilt and no nagging. STREAKS, ACHIEVEMENTS AND HISTORY • Streaks with a grace period for busy days • Achievements for your milestones • A calendar plus 7-day and 30-day charts of your fasting hours • Export your history as a CSV file WEIGHT AND BMI Log your weight, follow your trend and BMI, and optionally sync your weight with Apple Health. REMINDERS AND WATER Optional reminders to start your fast and a notification when your fast is complete. You choose the time. Log a glass of water with one tap. PRIVATE AND SIMPLE • No account, no email, no sign-up needed • Your fasting and weight data stay on your iPhone unless you turn on cloud backup • Works offline • The timer screen is ad-free; small banners appear on secondary screens JUST FAST PLUS (OPTIONAL) Plus removes the ads and adds long-term Insights (90-day, 1-year and all-time trends, and fasting next to your weight) and cloud backup with sign-in. Plus is optional — pay once (Lifetime) or subscribe (Monthly or Yearly). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel them in your App Store account settings. WHO IT IS FOR • Beginners who want a clear fasting timer without a long questionnaire • People who follow 16:8, 18:6, 20:4 or OMAD and want a quick daily routine • Anyone who wants to track time-restricted eating without creating an account 32 LANGUAGES English, Arabic, Finnish, French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish and 17 more. Whether you are trying intermittent fasting for the first time or you already follow 16:8, 18:6 or OMAD, JustFast keeps your fasting timer, your eating window and your history in one calm place. Download JustFast and start your first fast today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Fasting4 screens
Intermittent Fasting4 screens

Verdict

The call

The clearest difference is review sentiment: Intermittent Fasting at 100% against Fasting's 50%. Intermittent Fasting also leads on rating (4.9 vs 3.7) and update cadence (every 2 weeks vs every 6 weeks). Fasting's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price 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. Intermittent Fasting sells 4 in-app purchases, starting at $2.99 per month. Fasting asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Intermittent Fasting holds the better App Store score, 4.9 against 3.7. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews point the same way: 50% of Fasting's written reviews are positive against 100% of Intermittent Fasting's.

UpkeepUpdate frequency

Fasting ships an update every 6 weeks, Intermittent Fasting every 2 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard8 real differences · 2 level
Fasting versus Intermittent Fasting: the parameters behind the verdict, then further details
ParameterFastingIntermittent Fasting
PriceFreeFree
Rating3.7 (3 ratings)4.9 (11 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings311 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size47 MB126 MB
Age rating4+4+
Developer俊 吕Adrian Cabala

Customer experience

Fasting

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Intermittent Fasting

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Fasting

No in-app purchases

4 purchases

Intermittent Fasting

Subscriptions3
  • Just Fast Plus monthly$2.991 Month
  • Just Fast Plus7 Days trial$14.991 Year
  • Just Fast Plus$14.991 Year
One-time1
  • Just Fast Plus Lifetime$29.99

Questions

Is Fasting free?
Fasting is free to download, with no in-app purchases.
Is Intermittent Fasting free?
Intermittent Fasting is free to download, with in-app purchases available.
Which has better reviews, Fasting or Intermittent Fasting?
Intermittent Fasting is rated higher. Fasting averages 3.7 out of 5 from 3 ratings, while Intermittent Fasting averages 4.9 from 11 ratings.
Do Fasting or Intermittent Fasting have ads?
Intermittent Fasting shows ads; Fasting does not.
Which is updated more often, Fasting or Intermittent Fasting?
Fasting ships an update every 6 weeks, and Intermittent Fasting every 2 weeks. Most recently, Fasting was updated on October 24, 2026 and Intermittent Fasting on October 29, 2026.

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