# NabQuiz vs MistakeBook

The clearest difference is update cadence: MistakeBook at every 3 weeks against NabQuiz's every 5 months. 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.

NabQuiz ships an update every 5 months, MistakeBook every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | NabQuiz | MistakeBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/nabquiz/id6762571924/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 183 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ahmed AlNaboud](https://appshunter.io/developer/1861179939) | [志跃 王](https://appshunter.io/developer/6788202252) |

## What reviewers say

### NabQuiz

[App page](https://appshunter.io/ios/app/nabquiz/id6762571924)

This offline study tool allows students to import various file formats for quizzes and flashcards. It offers multiple study modes, spaced repetition, and progress tracking, all while prioritizing user privacy with no data collection or ads.

**Highlights:** Import quiz files (.txt, .pdf, .json, .apkg), Multiple-choice and flashcard modes, Spaced repetition algorithm (SM-2), Offline functionality, no account needed, Progress tracking and analytics, Daily question reminders

**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 NabQuiz free?

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

### Is MistakeBook free?

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

### Do NabQuiz or MistakeBook have ads?

Neither NabQuiz nor MistakeBook shows ads.

### Which is updated more often, NabQuiz or MistakeBook?

NabQuiz ships an update every 5 months, and MistakeBook every 3 weeks. Most recently, NabQuiz was updated on October 25, 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.*