Comparison

Heart Tempo vs PerfectFast

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

Head to head
About

Heart Tempo

Features
Read full description

Introducing Heart Tempo - a new, beautiful, and simple way to instantly get your heart rate, the tempo from that song, or the rhythm of anything else. Simply feel your heart beat from your chest and tap out the beat on your display and get a measurement from that sample, which you can then instantly share or save to the Apple Health app! You can do the same for the tempo from that song you like, or the rhythm to anything else in the world around you - just open your device and tap out the beat! It's as simple as that! You can refer back to your past measurements in your private history tab, so you can use them in the future. Of course, you can always remove a measurement from the history tab whenever you please. Heart Tempo has a beautiful and intuitive design, presenting you with the app in all its elegance with no difficulty to use. The app does not track you, discretely sell your data, or record your measurements secretly. The app is ad-free. Only you and who you decide to send it to will be able to see your measurements. No other third-party - including me, the developer - will ever see your measurements.

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

Heart Tempo4 screens
PerfectFast4 screens

Verdict

The call

The clearest difference is update cadence: PerfectFast at every 9 days against Heart Tempo's every 2 months. Heart Tempo's advantage is iOS requirement (15.0 vs 17.6). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Heart Tempo ships an update every 2 months, PerfectFast every 9 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Heart Tempo versus PerfectFast: the parameters behind the verdict, then further details
ParameterHeart TempoPerfectFast
PriceFreeFree
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.0 — better17.6
Further details — not scored
Size2 MB32 MB
Age rating4+12+
DeveloperLuigi MazzeoIdan Lupinsky

In-app purchases

None

Heart Tempo

No in-app purchases

None

PerfectFast

No in-app purchases

Questions

Is Heart Tempo free?
Heart Tempo is free to download, with no in-app purchases.
Is PerfectFast free?
PerfectFast is free to download, with no in-app purchases.
Do Heart Tempo or PerfectFast have ads?
Neither Heart Tempo nor PerfectFast shows ads.
Which is updated more often, Heart Tempo or PerfectFast?
Heart Tempo ships an update every 2 months, and PerfectFast every 9 days. Most recently, Heart Tempo was updated on October 25, 2026 and PerfectFast on October 28, 2026.

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