Comparison

Intermittent vs PerfectFast

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

PerfectFast

This app helps you track intermittent and extended fasting periods with a clean, focused interface. It supports various fasting schedules, custom durations, and provides detailed history and statistics to monitor your progress.

Highlights
  • Intermittent and extended fast tracking
  • Custom fasting schedules
  • Fasting history and statistics
  • Reminders and notifications
  • Apple Watch companion app
  • Live Activity support
Features
Read full description

PerfectFast helps you track intermittent and extended fasts with a calm, focused experience. Set up a fasting plan, follow your active fast, review your history, and see progress statistics without clutter. The app supports common fasting schedules, custom durations, reminders, fasting stages, history views, statistics, appearance settings, local data export, and Live Activity support on compatible devices. Log water, weight, blood glucose, and ketones beside your fasts, and read them on the fast's own clock in the Fast Timeline, with resting heart rate, heart rate variability, body composition, and sleep from Apple Health if you connect it. The Apple Watch companion lets you check your current or scheduled fast from your wrist, start or end a fast when your iPhone is nearby, and keep progress on your watch face with complications. Your fasting data stays on your device unless you choose to export or share it.

Screenshots

Intermittent4 screens
PerfectFast4 screens

Verdict

The call

Intermittent and PerfectFast both sit at 5.0 stars, but that hides the real split: 100% of PerfectFast's written reviews are positive against 50% of Intermittent's. PerfectFast also leads on in-app purchases (none vs 4). Intermittent's advantage is update cadence (every 4 days vs every 10 days) and ratings volume (9 vs 2). On price, rating, 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. PerfectFast asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Intermittent against 5.0 for PerfectFast. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews are what separate them: 50% of Intermittent's written reviews are positive against 100% of PerfectFast's.

UpkeepUpdate frequency

Intermittent ships an update every 4 days, PerfectFast every 10 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

Scorecard5 real differences · 5 level
Intermittent versus PerfectFast: the parameters behind the verdict, then further details
ParameterIntermittentPerfectFast
PriceFreeFree
Rating5.0 (9 ratings)5.0 (2 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings9 — better2
Update frequencyEvery 4 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS17.617.6
Further details — not scored
Size33 MB27 MB
Age rating12+12+
DeveloperBARBAROS SELIM BUYUKELCIIdan Lupinsky

Customer experience

Intermittent

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

PerfectFast

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

PerfectFast

No in-app purchases

Questions

Is Intermittent free?
Intermittent is free to download, with in-app purchases available.
Is PerfectFast free?
PerfectFast is free to download, with no in-app purchases.
Which has better reviews, Intermittent or PerfectFast?
Intermittent and PerfectFast are both rated 5.0 out of 5 on the App Store, from 9 and 2 ratings respectively.
Do Intermittent or PerfectFast have ads?
Neither Intermittent nor PerfectFast shows ads.
Which is updated more often, Intermittent or PerfectFast?
Intermittent ships an update every 4 days, and PerfectFast every 10 days. Most recently, Intermittent was updated on October 2, 2026 and PerfectFast on October 3, 2026.

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