# FastZen vs Phasely

The clearest difference is in-app purchases: Phasely at none against FastZen's 3. Phasely also leads on iOS requirement (15.1 vs 17.0). FastZen's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. FastZen sells 3 one-off in-app purchases. Phasely asks for nothing beyond the download.

FastZen ships an update weekly, Phasely monthly. Both last shipped on October 7, 2026.

## The numbers

| Metric | FastZen | Phasely |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 63 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Benjamin Dupin](https://appshunter.io/developer/1871474236) | [Karolina Bittmanova](https://appshunter.io/developer/6782680547) |

## What reviewers say

### FastZen

[App page](https://appshunter.io/ios/app/fastzen-fasting-timer/id6761484595)

This app helps you manage your fasting schedule with customizable timers and reminders. It offers a recurring weekly routine, a timer that remembers your progress, and a clear view of your active fast. Review your history and track your streaks, all while keeping your data private on your device.

**Highlights:** Customizable fasting schedules, Recurring weekly routine setup, Live Activities for active fast tracking, Detailed fasting history and streaks, No account, ads, or server sync, Custom Week one-time purchase

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Thanks | $2.99 | one-time |
| Support development | $4.99 | one-time |


### Phasely

[App page](https://appshunter.io/ios/app/phasely-cycle-aware-fasting/id6782680545)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FastZen free?

FastZen is free to download, with in-app purchases available.

### Is Phasely free?

Phasely is free to download, with no in-app purchases.

### Do FastZen or Phasely have ads?

Neither FastZen nor Phasely shows ads.

### Which is updated more often, FastZen or Phasely?

FastZen ships an update weekly, and Phasely monthly. Most recently, FastZen was updated on October 7, 2026 and Phasely on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*