# ZenScreen vs Stiff/Arm

The clearest difference is in-app purchases: Stiff/Arm at none against ZenScreen's 7. ZenScreen's advantage is device support (3 vs 1) and iOS requirement (15.2 vs 18.0). On price and ads there is nothing between them.

Both are free to download. ZenScreen sells 7 in-app purchases, starting at $4.99 per month. Stiff/Arm asks for nothing beyond the download.

## The numbers

| Metric | ZenScreen | Stiff/Arm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | Freemium | — |
| Size | 6 MB | 2 MB |
| Requires iOS | **15.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gennady Archibasov](https://appshunter.io/developer/1696588985) | [John Groe](https://appshunter.io/developer/1832050783) |

## What reviewers say

### ZenScreen

[App page](https://appshunter.io/ios/app/zenscreen/id6451110233)

This app uses eye-tracking to guide focus onto a dark screen, promoting mindfulness, creativity, and stress relief. It transforms idle moments into opportunities for personal growth and productivity.

**Highlights:** Eye-tracking technology, Guided focus on dark screen, Mindfulness and stress relief, Boosts creativity, Enhances productivity, Personal growth tool

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Associate | $4.99 | per month |
| Zen Practitioner | $9.99 | per month |
| Zen Pioneer | $29.99 | per month |
| A simple thank you | $4.99 | one-time |
| Warm appreciation | $19.99 | one-time |
| Generous Support | $44.99 | one-time |
| Deep respect | $99.99 | one-time |


### Stiff/Arm

[App page](https://appshunter.io/ios/app/stiffarm/id6749776674)

**In-app purchases:** none


## Frequently asked questions

### Is ZenScreen free?

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

### Is Stiff/Arm free?

Stiff/Arm is free to download, with no in-app purchases.

### Do ZenScreen or Stiff/Arm have ads?

Neither ZenScreen nor Stiff/Arm shows ads.

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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.*