# YerkinOnline vs 1Study

The clearest difference is in-app purchases: YerkinOnline at none against 1Study's 1. YerkinOnline also leads on iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. 1Study sells 1 one-off in-app purchase. YerkinOnline asks for nothing beyond the download.

## The numbers

| Metric | YerkinOnline | 1Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Size | 38 MB | 16 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Ruslan Ilisbekov](https://appshunter.io/developer/1581051885) | [Sapar Jumabekov](https://appshunter.io/developer/1600335348) |

## What reviewers say

### YerkinOnline

[App page](https://appshunter.io/ios/app/yerkinonline/id6446875417)

**Features:** Vision Pro support

**In-app purchases:** none


### 1Study

[App page](https://appshunter.io/ios/app/1study/id6738660263)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Базовый курс | $49.99 | one-time |


## Frequently asked questions

### Is YerkinOnline free?

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

### Is 1Study free?

1Study is free to download, with in-app purchases available.

### Do YerkinOnline or 1Study have ads?

Neither YerkinOnline nor 1Study 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.*