# Feynman AI vs Einstein AI

The clearest difference is monetization model: Feynman AI at free with in-app purchases against Einstein AI's subscription. Einstein AI's advantage is ads (none vs shown) and rating (4.8 vs 4.6). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Feynman AI sells 5 in-app purchases, starting at $4.99 per 7 days and Einstein AI sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Einstein AI holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 14 and 21 respectively.

Feynman AI ships an update monthly, Einstein AI every 2 weeks. The most recent releases landed on September 3, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Feynman AI | Einstein AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (14 ratings)](https://appshunter.io/ios/app/feynman-ai-explain-to-learn/id6738237030/reviews) | **[4.8 (21 ratings)](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6741355940/reviews)** |
| Number of ratings | 14 | **21** |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 76 MB | 31 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Geekclo Co., Ltd.](https://appshunter.io/developer/1481561066) | [A. Furkan Suren](https://appshunter.io/developer/1723613226) |

## What reviewers say

### Feynman AI

[App page](https://appshunter.io/ios/app/feynman-ai-explain-to-learn/id6738237030)

Master complex subjects by explaining them yourself and receive AI feedback to improve understanding and retention. Ideal for students, self-learners, and professionals seeking deeper knowledge.

**Highlights:** Practice explaining concepts, Real-time AI feedback and clarity scoring, Track learning progress over time, Build lasting mastery with active recall, Homework and study helper, Flashcards for memorization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feynman Learn - Weekly Plan | $4.99 | per 7 days |
| Feynman Learn - Monthly Plan | $9.99 | per month |
| Feynman Learn - Quarterly Plan | $29.99 | per 3 months |
| Feynman Learn - Annual Plan | $49.99 | per year |
| Feynman Learn - Annual Plan | $59.99 | per year |


### 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 |


## Frequently asked questions

### Is Feynman AI free?

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

### Is Einstein AI free?

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

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

Einstein AI is rated higher. Feynman AI averages 4.6 out of 5 from 14 ratings, while Einstein AI averages 4.8 from 21 ratings.

### Do Feynman AI or Einstein AI have ads?

Feynman AI shows ads; Einstein AI does not.

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

Feynman AI ships an update monthly, and Einstein AI every 2 weeks. Most recently, Feynman AI was updated on September 3, 2026 and Einstein AI on July 6, 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.*