# ChessTacToe vs Opening Prep

The clearest difference is ads: Opening Prep at none against ChessTacToe's shown. Opening Prep also leads on iOS requirement (16.6 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ChessTacToe | Opening Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 days |
| Size | 7 MB | 5 MB |
| Requires iOS | 18.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Venkata Shanmukha Prabhav Nishtala](https://appshunter.io/developer/1870334498) | [Roman Bogatenko](https://appshunter.io/developer/1896131806) |

## What reviewers say

### ChessTacToe

[App page](https://appshunter.io/ios/app/chesstactoe-2d/id6758882011)

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

**In-app purchases:** none


### Opening Prep

[App page](https://appshunter.io/ios/app/opening-prep-chess-trainer/id6765937133)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChessTacToe free?

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

### Is Opening Prep free?

Opening Prep is free to download, with no in-app purchases.

### Do ChessTacToe or Opening Prep have ads?

ChessTacToe shows ads; Opening Prep does not.

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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.*