MistakeBook vs Paper Restore King
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MistakeBook
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MistakeBook turns “mistake review” into a sustainable study workflow. Inspired by the forgetting curve and spaced repetition, it automatically schedules your next review based on your familiarity—so you remember more in less time. Quickly add questions and answers via Camera / Photos / Paste—no more paper cut-and-paste. Use the built-in crop tool for precise framing, then handwrite annotations and hide answers (masking) to start reviewing right away. All content and metadata (subject, learning content, reason analysis, tags, created time, etc.) are stored locally on your device, and the app works offline. Key Features “+” Add Mistakes: Create question/answer sets from camera, photo library, or paste. Organize with categories and tags. “Today” & “Upcoming”: View what to review, reminders, and review history. Auto-schedule by star-rated familiarity; mastered items move to “Completed.” “Stats”: Identify frequent mistakes and weak areas with data to improve efficiency. “All”: Export A4 PDFs (questions/answers/reviews) for sharing or printing. Support ZIP export/import for backup and exchange. “Exam Paper”: Select mistakes and export as PDF or editable ODF for printing and practice. “Settings”: Set daily reminder time, manage subscriptions, manage subjects/learning content/reason analysis, and import ZIP backups/shared files. Free plan: up to 30 mistake entries. Subscription: create unlimited mistake entries (auto-renewable). Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.antimistakenote.com/Privacy/Privacy.html
Paper Restore King
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Paper Restore King is an AI-powered exam management tool designed for students. Remove handwriting from scanned test papers, build a smart wrong-answer book, and study more efficiently. [AI Handwriting Removal] Scan your test paper and let AI remove all handwriting in one click. Restore clean, blank papers with 1K/2K high-resolution output—perfect for reprinting! [Smart Wrong Answer Book] Auto-crop wrong questions from papers to build your personal revision library. Match answer text or images for each question so you never miss a weak spot. [AI Teacher Q&A] Photo any question you don't understand. AI instantly analyzes the solution with detailed explanations. Supports LaTeX math rendering for STEM subjects. [Powerful File System] Multi-level folder management organized by subject, grade, or semester. Switch between list and grid views for a tidy, organized library. [Flexible Credits—Pay Per Use] No subscription! Spend credits only when processing pages. Earn free credits by watching ads. NGO discount codes available for students in need. [Multiple Export Formats] Export as PDF, JPG, or PNG for easy sharing with classmates or printing. Download now and make every exam revision session twice as effective!
Screenshots
Verdict
The clearest difference is update cadence: Paper Restore King at daily against MistakeBook's every 2 weeks. Paper Restore King also leads on iOS requirement (16.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MistakeBook sells 1 in-app purchase, starting at $0.99 per 6 months and Paper Restore King sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
MistakeBook ships an update every 2 weeks, Paper Restore King daily. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.
| Parameter | MistakeBook | Paper Restore King |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 72 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Wei Shuo Wu | Chun Wa LI |
In-app purchases
MistakeBook
- MistakeBook訂閱方案$0.996 Months
Paper Restore King
- 90 Credits Pack$0.99
- 180 Credits Pack$1.99
- 270 Credits Pack$2.99
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- 360 Credits Pack$4.99
Questions
Is MistakeBook free?
Is Paper Restore King free?
Do MistakeBook or Paper Restore King have ads?
Which is updated more often, MistakeBook or Paper Restore King?
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