# أينشتاين vs Shater

The clearest difference is in-app purchases: أينشتاين at none against Shater's 4. Shater's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Shater sells 4 in-app purchases, starting at $5.99 per 7 days. أينشتاين asks for nothing beyond the download.

أينشتاين ships an update monthly, Shater weekly. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | أينشتاين | Shater |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (14 ratings)](https://appshunter.io/ios/app/shater-study-assistant/id6755720986/reviews)** |
| Number of ratings | — | **14** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Freemium |
| Size | 270 MB | 80 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Ahmed](https://appshunter.io/developer/1716158170) | [Abdulrahman Alzahrani](https://appshunter.io/developer/1855852089) |

## What reviewers say

### أينشتاين

[App page](https://appshunter.io/ios/app/id6744972230)

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

**In-app purchases:** none


### Shater

[App page](https://appshunter.io/ios/app/shater-study-assistant/id6755720986)

Transform your study materials into interactive quizzes, summaries, and flashcards with AI. This tool helps students of all levels learn faster and reduce exam stress. Organize your courses and track your progress for a more efficient study experience.

**Highlights:** AI quiz generation, Content summaries, Flashcard creation, Progress tracking, Course organization, Text extraction from PDFs/images

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| اسبوعي | $5.99 | per 7 days |
| اشتراك شهر | $9.99 | per month |
| عرض سنوي | $19.99 | per year |
| اشتراك سنوي | $29.99 | per year |


## Frequently asked questions

### Is أينشتاين free?

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

### Is Shater free?

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

### Do أينشتاين or Shater have ads?

Neither أينشتاين nor Shater shows ads.

### Which is updated more often, أينشتاين or Shater?

أينشتاين ships an update monthly, and Shater weekly. Most recently, أينشتاين was updated on October 13, 2026 and Shater on October 24, 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.*