# MistakeBook - Wrong Answer Log — Spaced Rep Forgetting Curve

> Personalized error logging and spaced repetition for academic improvement. (iPhone/iPad app by Xiamen City Fanyou Network Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206 (this page in markdown: same URL + `.md`)
- Developer: [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161)
- Category: Education, Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 13.0 · 26 MB
- Languages: American English, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 5 more
- Released: 2026-05-20
- Data updated: 2026-09-13
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206/reviews.md

## What is MistakeBook?

Capture every wrong answer in seconds. Sort mistakes by subject, tag key topics, and build a personal error bank—no account required.

Preparing for midterms, finals, or standardized tests? Spaced review quizzes follow the forgetting curve so weak spots come back at the right time. See progress charts and daily check-ins to stay on track.

• Log mistakes with photos, notes, and difficulty tags
• Organize by subject, chapter, and custom tags
• Review mode: quiz, practice, and spaced repetition
• Ebbinghaus schedule for smarter recall
• Stats dashboard: mastery trends and weak areas
• Import/export backup—data stays on your device

Built for students who want a simple, private way to turn errors into higher scores.

## Key features

- Log mistakes with photos and notes
- Organize by subject and custom tags
- Spaced repetition review mode
- Ebbinghaus forgetting curve schedule
- Progress charts and stats dashboard
- Data import/export backup

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206/reviews.md

### 4/5 — 没拍照功能

*2026-08-28*

完全手写没啥用

### 4/5 — 不能拍照和添加照片啊，只能手打字的吗

*2026-08-05*

不能拍照

## Frequently asked questions about MistakeBook

### How does MistakeBook help with learning?

MistakeBook helps you log and review incorrect answers using spaced repetition, which schedules reviews based on the Ebbinghaus forgetting curve. This ensures you revisit weak spots at optimal times to improve recall and retention.

### What is the price of MistakeBook?

MistakeBook is a paid application, available for a one-time purchase of $1.99. This grants you full access to all its features without any recurring fees or subscriptions.

### Does MistakeBook have ads?

No, MistakeBook does not contain advertisements. The app is ad-free, providing an uninterrupted learning experience for users.

### What devices is MistakeBook compatible with?

MistakeBook is designed for Apple devices, including iPhone, iPad, and iPod. It runs on iOS and is optimized for a seamless experience across these platforms.

### How often is MistakeBook updated?

The latest version of MistakeBook is 1.0.5, last updated on July 16, 2026. Updates typically focus on improving functionality, adding minor enhancements, and ensuring compatibility with the latest operating system versions.

### Can I back up my data in MistakeBook?

Yes, MistakeBook offers import and export backup functionality. This allows you to save your logged mistakes and progress data, ensuring it stays on your device and can be restored if needed.

### What age rating does MistakeBook have?

MistakeBook has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially objectionable material.

### Does MistakeBook require an account?

No, MistakeBook does not require an account to use its features. Your data is stored locally on your device, offering a private and straightforward way to manage your learning progress.

## Version history (last 3 releases)

### 1.0.5 — 2026-07-16

Bug fixes and improvements

### 1.0.4 — 2026-07-13

欢迎使用错题本！记录错题、分科整理、闯关复习、艾宾浩斯智能排期，数据全部保存在本机。

### 1.0.0 — 2026-05-20

No release notes.

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All apps by Xiamen City Fanyou Network Technology Co., Ltd.: https://appshunter.io/developer/1842524161

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-13.*