Comparison

Intermittent vs Fast!

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

Head to head
About

Intermittent

Easily track your intermittent fasting with a visual timeline and preset or custom plans. Integrate with Apple Health for a holistic view of your wellness. Stay updated with widgets and Apple Watch support.

Highlights
  • Fasting timer
  • Visual stage timeline
  • Preset and custom plans
  • Apple Health integration
  • Apple Watch app
  • Widgets and Live Activities
Features
Read full description

100% FREE — NO SUBSCRIPTION, NO PAYWALL, NO IN-APP PURCHASES. BetterFasting is a simple, powerful intermittent fasting timer and tracker for your daily routine. Pick a plan, start your fast, and watch your progress build day after day. Every feature is unlocked from the very first tap. The app is supported by ads, so the tools stay open and free for everyone. POPULAR FASTING PLANS, OR YOUR OWN Fast with 16:8, 18:6, 20:4, OMAD, 5:2, or build a custom fasting window that fits your life. Start, stop, and edit fasts whenever you need to, so the timer always matches your real day. KNOW EXACTLY WHERE YOU ARE Follow live fasting stages as your body moves through your fast, with a clear timer ring and progress at a glance. Set smart reminders so you never miss the start or end of a window. TRACK WHAT MATTERS Log water and mood through the day, record your weight over time, and build streaks and badges that keep you motivated. Review your full fasting history with simple charts that show your trends week over week. ALWAYS WITHIN REACH Add home screen and lock screen widgets, keep your timer front and center with Live Activities and the Dynamic Island, and check your fast right from your wrist with the Apple Watch app. Apple Health sync keeps your data connected, and iCloud sync keeps everything safe across your devices. FAST TOGETHER Add friends, join groups, take on challenges, and cheer each other on in the activity feed. Staying accountable is easier when you are not doing it alone. SPEAKS YOUR LANGUAGE Available in 45 languages, including full right-to-left support. WHY BETTERFASTING? - 100% free: no subscription, no paywall, no in-app purchases. - Every plan and tool unlocked from day one. - Clean, fast, and easy to use every single day. - Ad-supported so the core experience stays open to all. Many fasting apps hide basic tools behind a subscription. BetterFasting is different. Start free, track your routine, stay accountable with friends, and keep the habit going. Fasting is a personal wellness routine, not medical advice. If you have a medical condition, are pregnant, or are unsure whether fasting is right for you, talk to a qualified health professional before you begin. Download BetterFasting and start your first fast today.

About

Fast!

Features
Read full description

Fast! makes intermittent fasting simple and social. Start a timer, watch your body move through each fasting phase — from blood-sugar stabilizing to fat-burning, ketosis, and autophagy — and log how you feel along the way. • Clean, real-time fasting timer with science-backed milestone markers • Track your history, streaks, and progress over time • Connect 1-to-1 with a friend or create a group to fast together and see each other's live progress • Send quick encouragement to keep each other on track • Private by design — your data is yours Whether you do 16:8, 18:6, OMAD, or your own schedule, Fast! helps you stay consistent. FAST! PREMIUM Fast! Premium is an auto-renewing subscription that unlocks unlimited fasting hours, milestones, the journal and friends. The free tier allows 10 hours of fasting and always stays free. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://fasted.pro/terms Privacy Policy: https://fasted.pro/privacy

Screenshots

Intermittent4 screens
Fast!3 screens

Verdict

The call

The clearest difference is in-app purchases: Fast! at none against Intermittent's 4. Fast! also leads on iOS requirement (15.0 vs 17.6). Intermittent's advantage is update cadence (every 4 days vs every 5 weeks). 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. Intermittent sells 4 in-app purchases, starting at $4.99 per month. Fast! asks for nothing beyond the download.

UpkeepUpdate frequency

Intermittent ships an update every 4 days, Fast! every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Intermittent versus Fast!: the parameters behind the verdict, then further details
ParameterIntermittentFast!
PriceFreeFree
Rating4.8 (18 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings18 — better—
Update frequencyEvery 4 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size33 MB9 MB
Age rating12+4+
DeveloperBARBAROS SELIM BUYUKELCIchris marinelli

In-app purchases

4 purchases

Intermittent

Subscriptions4
  • Monthly Premium3 Days trial$4.991 Month
  • 3 Months Premium3 Days trial$9.993 Months
  • 6 Months Premium3 Days trial$24.996 Months
Show 1 more
  • Yearly Premium3 Days trial$34.991 Year
None

Fast!

No in-app purchases

Questions

Is Intermittent free?
Intermittent is free to download, with in-app purchases available.
Is Fast! free?
Fast! is free to download, with no in-app purchases.
Do Intermittent or Fast! have ads?
Neither Intermittent nor Fast! shows ads.
Which is updated more often, Intermittent or Fast!?
Intermittent ships an update every 4 days, and Fast! every 5 weeks. Most recently, Intermittent was updated on October 24, 2026 and Fast! on October 25, 2026.

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