# CheckOne vs Bookus

The clearest difference is iOS requirement: Bookus at 15.5 against CheckOne's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CheckOne sells 1 one-off in-app purchase and Bookus sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | CheckOne | Bookus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Size | 14 MB | 75 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mishima Design](https://appshunter.io/developer/373060551) | [Whanyun Choi](https://appshunter.io/developer/1270165622) |

## What reviewers say

### CheckOne

[App page](https://appshunter.io/ios/app/checkone/id6785709065)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CheckOne Plus | $9.99 | one-time |


### Bookus

[App page](https://appshunter.io/ios/app/bookus-all-in-one/id6796520486)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 부커스 구독 | $1.99 | per month |
| 부커스 구독 | $2.99 | per month |
| 부커스 구독 | $19.99 | per year |
| 부커스 구독 | $29.99 | per year |


## Frequently asked questions

### Is CheckOne free?

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

### Is Bookus free?

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

### Do CheckOne or Bookus have ads?

Neither CheckOne nor Bookus 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.*