# FastZen vs FastLine

The clearest difference is update cadence: FastZen at weekly against FastLine's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FastZen sells 3 one-off in-app purchases and FastLine sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

FastZen ships an update weekly, FastLine monthly. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | FastZen | FastLine |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 13 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Dupin](https://appshunter.io/developer/1871474236) | [Moaath Othman](https://appshunter.io/developer/866641649) |

## 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 |


### FastLine

[App page](https://appshunter.io/ios/app/fastline-fasting-timer/id6780896658)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| FastLine Pro | $19.99 | per year |
| FastLine Pro | $29.99 | one-time |


## Frequently asked questions

### Is FastZen free?

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

### Is FastLine free?

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

### Do FastZen or FastLine have ads?

Neither FastZen nor FastLine shows ads.

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

FastZen ships an update weekly, and FastLine monthly. Most recently, FastZen was updated on October 7, 2026 and FastLine on September 30, 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.*