# Focus Blocks vs Butsu

The clearest difference is in-app purchases: Focus Blocks at none against Butsu's 1. Focus Blocks also leads on update cadence (every 4 days vs every 2 weeks). Butsu's advantage is iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Butsu sells 1 one-off in-app purchase. Focus Blocks asks for nothing beyond the download.

Focus Blocks ships an update every 4 days, Butsu every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Focus Blocks | Butsu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 38 MB | 61 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mikhail Nemilov](https://appshunter.io/developer/1895475612) | [Andrea Quan](https://appshunter.io/developer/6780689096) |

## What reviewers say

### Focus Blocks

[App page](https://appshunter.io/ios/app/focus-blocks-app-blocker/id6763754394)

**In-app purchases:** none


### Butsu

[App page](https://appshunter.io/ios/app/butsu-app-blocker/id6780689094)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Butsu Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Focus Blocks free?

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

### Is Butsu free?

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

### Do Focus Blocks or Butsu have ads?

Neither Focus Blocks nor Butsu shows ads.

### Which is updated more often, Focus Blocks or Butsu?

Focus Blocks ships an update every 4 days, and Butsu every 2 weeks. Most recently, Focus Blocks was updated on October 31, 2026 and Butsu on October 31, 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.*