# Feynman Learning Study Tracker vs Einstein AI

The clearest difference is in-app purchases: Feynman Learning Study Tracker at none against Einstein AI's 2. Feynman Learning Study Tracker also leads on update cadence (every 2 days vs fortnightly). Einstein AI's advantage is iOS requirement (15.1 vs 17.5). On price, ads 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. Feynman Learning Study Tracker asks for nothing beyond the download.

Feynman Learning Study Tracker ships an update every 2 days, Einstein AI fortnightly. The most recent releases landed on September 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Feynman Learning Study Tracker | Einstein AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (192 ratings)](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6739162816/reviews)** |
| Number of ratings | — | **192** |
| Positive reviews | — | 22.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 32 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Halil Can Ugur](https://appshunter.io/developer/1765607029) | [Berkay Gemici](https://appshunter.io/developer/1761248495) |

## What reviewers say

### Feynman Learning Study Tracker

[App page](https://appshunter.io/ios/app/feynman-learning-study-tracker/id6738595754)

**In-app purchases:** none


### Einstein AI

[App page](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6739162816)

This app uses the Feynman Learning Technique to help you master any subject through voice interaction. Explain concepts aloud, take voice-powered quizzes, and receive detailed performance analysis to identify areas for improvement.

**Highlights:** Voice-powered concept explanation, Dynamically generated voice quizzes, Detailed performance analysis, Subtopic strength identification, Hands-free microphone interaction, Customizable learning topics

**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 Learning Study Tracker free?

Feynman Learning Study Tracker is free to download, with no in-app purchases.

### Is Einstein AI free?

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

### Do Feynman Learning Study Tracker or Einstein AI have ads?

Neither Feynman Learning Study Tracker nor Einstein AI shows ads.

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

Feynman Learning Study Tracker ships an update every 2 days, and Einstein AI fortnightly. Most recently, Feynman Learning Study Tracker was updated on September 24, 2026 and Einstein AI on October 12, 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.*