# Boot Up Focus vs Chess Clock

The clearest difference is in-app purchases: Boot Up Focus at none against Chess Clock's 2. Chess Clock's advantage is update cadence (weekly vs every 2 months) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Chess Clock sells 2 in-app purchases, starting at $2.99 per month. Boot Up Focus asks for nothing beyond the download.

Boot Up Focus ships an update every 2 months, Chess Clock weekly. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Boot Up Focus | Chess Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/boot-up-focus/id6768882536/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 10 MB | 45 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eli Guzzone](https://appshunter.io/developer/1896612963) | [Erwan ROMBO](https://appshunter.io/developer/1556205314) |

## What reviewers say

### Boot Up Focus

[App page](https://appshunter.io/ios/app/boot-up-focus/id6768882536)

This app adds a deliberate boot-up sequence to distracting applications, creating friction to break impulsive scrolling habits. Customize boot times, grace periods, and select which apps to slow down, putting you in control of your digital consumption.

**Highlights:** App launch delay sequence, Customizable boot duration, Configurable grace periods, Selectable app locking, No analytics or network requests, Open-source code available

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

**In-app purchases:** none


### Chess Clock

[App page](https://appshunter.io/ios/app/chess-clock-zwango/id6789904927)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zwango Pro | $2.99 | per month |
| Zwango Pro | $9.99 | one-time |


## Frequently asked questions

### Is Boot Up Focus free?

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

### Is Chess Clock free?

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

### Do Boot Up Focus or Chess Clock have ads?

Neither Boot Up Focus nor Chess Clock shows ads.

### Which is updated more often, Boot Up Focus or Chess Clock?

Boot Up Focus ships an update every 2 months, and Chess Clock weekly. Most recently, Boot Up Focus was updated on October 12, 2026 and Chess Clock on October 10, 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.*