# Addition simulator vs Study Chey

The clearest difference is device support: Study Chey at 3 against Addition simulator's 1. Addition simulator's advantage is iOS requirement (12.1 vs 15.1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Addition simulator ships an update every 6 days, Study Chey every 4 days. Both last shipped on October 1, 2026.

## The numbers

| Metric | Addition simulator | Study Chey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 4 days** |
| Size | 7 MB | 44 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anton Golovatuk](https://appshunter.io/developer/510289187) | [Garimella Sri Vijaya Naga Praveen](https://appshunter.io/developer/1864936638) |

## What reviewers say

### Addition simulator

[App page](https://appshunter.io/ios/app/addition-simulator/id1590804374)

**Features:** macOS Compatibility

**In-app purchases:** none


### Study Chey

[App page](https://appshunter.io/ios/app/study-chey/id6757381771)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Addition simulator free?

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

### Is Study Chey free?

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

### Do Addition simulator or Study Chey have ads?

Neither Addition simulator nor Study Chey shows ads.

### Which is updated more often, Addition simulator or Study Chey?

Addition simulator ships an update every 6 days, and Study Chey every 4 days. Most recently, Addition simulator was updated on October 1, 2026 and Study Chey on October 1, 2026.

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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.*