# Opening Prep vs Simple Chess Trainer

The clearest difference is in-app purchases: Opening Prep at none against Simple Chess Trainer's 1. Opening Prep also leads on ads (none vs shown) and iOS requirement (16.6 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Simple Chess Trainer sells 1 one-off in-app purchase. Opening Prep asks for nothing beyond the download.

## The numbers

| Metric | Opening Prep | Simple Chess Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | — |
| Size | 5 MB | 8 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roman Bogatenko](https://appshunter.io/developer/1896131806) | [Oleksandr Ioffe](https://appshunter.io/developer/1895445780) |

## 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


### Simple Chess Trainer

[App page](https://appshunter.io/ios/app/simple-chess-trainer/id6766382515)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove All Adds (One-Time) | $12.99 | one-time |


## Frequently asked questions

### Is Opening Prep free?

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

### Is Simple Chess Trainer free?

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

### Do Opening Prep or Simple Chess Trainer have ads?

Simple Chess Trainer 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.*