# WilliStudy vs Einstein AI

WilliStudy and Einstein AI both sit at 4.5 stars, but that hides the real split: 80% of WilliStudy's written reviews are positive against 20% of Einstein AI's. WilliStudy also leads on in-app purchases (none vs 2) and device support (5 vs 3). Einstein AI's advantage is ratings volume (193 vs 8) and iOS requirement (15.1 vs 17.4). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Einstein AI sells 2 in-app purchases, starting at $4.99 per 7 days. WilliStudy asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for WilliStudy against 4.6 for Einstein AI. That said, the two scores are not equally well evidenced: Einstein AI has 193 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 80% of WilliStudy's written reviews are positive against 20% of Einstein AI's.

WilliStudy ships an update every 3 weeks, Einstein AI fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | WilliStudy | Einstein AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/willistudy/id6466582450/reviews) | **[4.6 (193 ratings)](https://appshunter.io/ios/app/einstein-ai-learn-and-memorize/id6739162816/reviews)** |
| Number of ratings | 8 | **193** |
| Positive reviews | **80.0% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 115 MB | 32 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | **iPhone, iPad, Mac, Apple TV, Vision Pro** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [William Gallegos](https://appshunter.io/developer/1672879909) | [Berkay Gemici](https://appshunter.io/developer/1761248495) |

## What reviewers say

### WilliStudy

[App page](https://appshunter.io/ios/app/willistudy/id6466582450)

Create and study custom flashcards with various learning modes like Learn, Write, and Test. Share your study sets with others globally or keep them private. Designed for all students to enhance their academic potential.

**Highlights:** Customizable flashcard creation, Multiple study modes (Learn, Write, Test), Share study sets publicly or privately, Infinite learning rounds, Progressive difficulty in Learn mode, Practice tests for exam preparation

**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 WilliStudy free?

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

### Is Einstein AI free?

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

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

Einstein AI is rated higher. WilliStudy averages 4.5 out of 5 from 8 ratings, while Einstein AI averages 4.6 from 193 ratings.

### Do WilliStudy or Einstein AI have ads?

Neither WilliStudy nor Einstein AI shows ads.

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

WilliStudy ships an update every 3 weeks, and Einstein AI fortnightly. Most recently, WilliStudy was updated on October 24, 2026 and Einstein AI on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*