# MasteryAI vs AI Study Sheet

The clearest difference is update cadence: AI Study Sheet at every 3 days against MasteryAI's every 2 weeks. On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. MasteryAI sells 3 in-app purchases, starting at $5.99 per 7 days and AI Study Sheet sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

MasteryAI ships an update every 2 weeks, AI Study Sheet every 3 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | MasteryAI | AI Study Sheet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/masteryai-feynman-ai-study/id6756033151/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 58 MB | 8 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tu Tran](https://appshunter.io/developer/1858113571) | [Masaki Iino](https://appshunter.io/developer/6778272211) |

## What reviewers say

### MasteryAI

[App page](https://appshunter.io/ios/app/masteryai-feynman-ai-study/id6756033151)

Transform raw content like lectures, PDFs, and audio into structured, high-retention study notes using science-backed learning techniques. Engage with AI-powered Feynman sessions, adaptive explanations, and dynamic quizzes to deepen understanding and combat information overload.

**Highlights:** AI-powered note generation, Feynman Technique sessions, Adaptive explanations, Cognitive science quizzes, Spaced repetition flashcards, Concept mindmaps, Multilingual support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MasteryAI Pro (Weekly) | $5.99 | per 7 days |
| MasteryAI Pro (Monthly) | $14.99 | per month |
| MasteryAI Pro (Annual) | $99.99 | per year |


### AI Study Sheet

[App page](https://appshunter.io/ios/app/ai-study-sheet-active-recall/id6782023263)

Transform existing study materials into active-recall quizzes with AI. Snap photos or import PDFs, and the app automatically masks key terms for spaced repetition. Review materials with an auto-reveal mode that adapts to your learning behavior.

**Highlights:** Import photos and PDFs, Automatic AI masking of key terms, Review reminders, Auto Study Mode with sequential reveal, Adaptive learning based on study behavior, Organized study material library, Flexible material viewing and editing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Saves | $4.99 | one-time |


## Frequently asked questions

### Is MasteryAI free?

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

### Is AI Study Sheet free?

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

### Do MasteryAI or AI Study Sheet have ads?

Neither MasteryAI nor AI Study Sheet shows ads.

### Which is updated more often, MasteryAI or AI Study Sheet?

MasteryAI ships an update every 2 weeks, and AI Study Sheet every 3 days. Most recently, MasteryAI was updated on October 9, 2026 and AI Study Sheet on October 15, 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.*