# ChessMovio vs OpeningBook

The clearest difference is device support: ChessMovio at 3 against OpeningBook's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. ChessMovio sells 1 one-off in-app purchase and OpeningBook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ChessMovio | OpeningBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Size | 90 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Deep IT Pro](https://appshunter.io/developer/418534799) | [Zhenghong Peng](https://appshunter.io/developer/6797348186) |

## What reviewers say

### ChessMovio

[App page](https://appshunter.io/ios/app/chessmovio-chess-study-hub/id6757606915)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessMovio Premium | $9.99 | one-time |


### OpeningBook

[App page](https://appshunter.io/ios/app/openingbook/id6805625863)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Training Mode | $3.99 | one-time |


## Frequently asked questions

### Is ChessMovio free?

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

### Is OpeningBook free?

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

### Do ChessMovio or OpeningBook have ads?

Neither ChessMovio nor OpeningBook 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.*