# Lecture Studio vs MistakeBook

The clearest difference is update cadence: Lecture Studio at every 2 days against MistakeBook's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Lecture Studio ships an update every 2 days, MistakeBook every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Lecture Studio | MistakeBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/lecture-studio-ai-study-notes/id6761261911/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 16 MB | 183 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pankaj Gaikar](https://appshunter.io/developer/1585561446) | [志跃 王](https://appshunter.io/developer/6788202252) |

## What reviewers say

### Lecture Studio

[App page](https://appshunter.io/ios/app/lecture-studio-ai-study-notes/id6761261911)

Record lectures, generate searchable transcripts, and create AI-powered study materials like summaries, flashcards, and quizzes. All processing happens privately on your device, ensuring your content remains yours.

**Highlights:** On-device lecture recording, Searchable transcripts, AI-generated summaries, Flashcard creation, Customizable quizzes, Cross-device sync via iCloud

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

**In-app purchases:** none


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook-ai-study-notes/id6788320929)

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

**In-app purchases:** none


## Frequently asked questions

### Is Lecture Studio free?

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

### Is MistakeBook free?

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

### Do Lecture Studio or MistakeBook have ads?

Neither Lecture Studio nor MistakeBook shows ads.

### Which is updated more often, Lecture Studio or MistakeBook?

Lecture Studio ships an update every 2 days, and MistakeBook every 3 weeks. Most recently, Lecture Studio was updated on October 31, 2026 and MistakeBook on October 31, 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.*