# Rule 20 vs Focus/Rest

The clearest difference is in-app purchases: Rule 20 at none against Focus/Rest's 1. Rule 20 also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (15.1 vs 17.6). Focus/Rest's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Focus/Rest sells 1 one-off in-app purchase. Rule 20 asks for nothing beyond the download.

Rule 20 ships an update every 2 days, Focus/Rest every 5 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rule 20 | Focus/Rest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 34 MB | 7 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniil Korzh](https://appshunter.io/developer/1887070950) | [Davyd Habshydze](https://appshunter.io/developer/1887521767) |

## What reviewers say

### Rule 20

[App page](https://appshunter.io/ios/app/rule-20-20-20/id6760965580)

**Features:** macOS Compatibility

**In-app purchases:** none


### Focus/Rest

[App page](https://appshunter.io/ios/app/focusrest/id6761052908)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $0.99 | one-time |


## Frequently asked questions

### Is Rule 20 free?

Rule 20 is free to download, with no in-app purchases.

### Is Focus/Rest free?

Focus/Rest is free to download, with in-app purchases available.

### Do Rule 20 or Focus/Rest have ads?

Rule 20 shows ads; Focus/Rest does not.

### Which is updated more often, Rule 20 or Focus/Rest?

Rule 20 ships an update every 2 days, and Focus/Rest every 5 days. Most recently, Rule 20 was updated on October 25, 2026 and Focus/Rest on October 14, 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.*