# Einstein AI vs Zui

The clearest difference is rating: Zui at 5.0 against Einstein AI's 4.6. Zui also leads on update cadence (every 3 days vs every 2 weeks). Einstein AI's advantage is ratings volume (22 vs 2) and iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Einstein AI sells 2 in-app purchases, starting at $4.99 per 7 days and Zui sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Zui holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Einstein AI has 22 ratings behind it against 2, so its average is the more settled of the two.

Einstein AI ships an update every 2 weeks, Zui every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Einstein AI | Zui |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (22 ratings)](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6741355940/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zui/id6789417865/reviews)** |
| Number of ratings | **22** | 2 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Subscription | — |
| Size | 31 MB | 25 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 12+ |
| Developer | [A. Furkan Suren](https://appshunter.io/developer/1723613226) | [Kevin Ngo](https://appshunter.io/developer/6789417867) |

## What reviewers say

### Einstein AI

[App page](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6741355940)

This app uses AI to generate structured study content and quizzes on any topic. It provides instant feedback and detailed explanations to help users learn faster and improve retention.

**Highlights:** AI-generated study content, Instant quizzes, Detailed feedback and corrections, Learn any topic, Boost knowledge retention, Structured learning format

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $4.99 | per 7 days |
| Yearly Pro | $39.99 | per year |


### Zui

[App page](https://appshunter.io/ios/app/zui/id6789417865)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zui Plus Monthly | $9.99 | per month |
| Zui Plus Yearly | $59.99 | per year |


## Frequently asked questions

### Is Einstein AI free?

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

### Is Zui free?

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

### Which has better reviews, Einstein AI or Zui?

Zui is rated higher. Einstein AI averages 4.6 out of 5 from 22 ratings, while Zui averages 5.0 from 2 ratings.

### Do Einstein AI or Zui have ads?

Neither Einstein AI nor Zui shows ads.

### Which is updated more often, Einstein AI or Zui?

Einstein AI ships an update every 2 weeks, and Zui every 3 days. Most recently, Einstein AI was updated on October 24, 2026 and Zui 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.*