# Opening Prep vs OpeningDrill

The clearest difference is device support: Opening Prep at 2 against OpeningDrill's —. On price, in-app purchases and iOS requirement 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 | Opening Prep | OpeningDrill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 4 days | — |
| Size | 5 MB | 1 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Roman Bogatenko](https://appshunter.io/developer/1896131806) | [TYLER ANTHONY BUSSANICH](https://appshunter.io/developer/6772781644) |

## What reviewers say

### Opening Prep

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

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

**In-app purchases:** none


### OpeningDrill

[App page](https://appshunter.io/ios/app/openingdrill/id6772781642)

**In-app purchases:** none


## Frequently asked questions

### Is Opening Prep free?

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

### Is OpeningDrill free?

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

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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.*