# Pockster StrongArm vs FastZen

The clearest difference is review sentiment: FastZen at 100% against Pockster StrongArm's 0%. FastZen also leads on update cadence (weekly vs every 108 months). Pockster StrongArm's advantage is in-app purchases (none vs 3). On price, ads, device support and iOS requirement there is nothing between them.

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

Pockster StrongArm ships an update every 108 months, FastZen weekly. The most recent releases landed on September 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Pockster StrongArm | FastZen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.4 (5 ratings)](https://appshunter.io/ios/app/pockster-strongarm/id301044470/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 108 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 5 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Greg Chaffins](https://appshunter.io/developer/301044473) | [Benjamin Dupin](https://appshunter.io/developer/1871474236) |

## What reviewers say

### Pockster StrongArm

[App page](https://appshunter.io/ios/app/pockster-strongarm/id301044470)

Measure your physiological state by testing your fine motor control. Hold your iPhone steady with your arm outstretched for one minute to pass the challenge. The app tracks your ability to maintain stillness against gravity and fatigue.

**Highlights:** Measure steady hand control, Test against gravity, Track physiological state, Challenge friends and colleagues, Simple, intuitive gameplay

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Pockster StrongArm free?

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

### Is FastZen free?

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

### Do Pockster StrongArm or FastZen have ads?

Neither Pockster StrongArm nor FastZen shows ads.

### Which is updated more often, Pockster StrongArm or FastZen?

Pockster StrongArm ships an update every 108 months, and FastZen weekly. Most recently, Pockster StrongArm was updated on September 26, 2026 and FastZen 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.*