MistakeBook vs TacticalStudy
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
TacticalStudy
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From Tracking Time to Tracking Output. TacticalStudy: Your Strategic Partner for Mastering Practice Problems. TacticalStudy shifts your focus to the core of learning: output. By combining review scheduling based on the Ebbinghaus Forgetting Curve, automated weak-point detection, and a token system to sustain motivation, we provide the shortest route to conquering your exams and certifications. *Scientific "Forgetting Curve" Management Visualize your retention rates with our unique algorithm. Simply mark a problem as "Correct," "Hard," or "Incorrect," and the app automatically calculates the optimal review timing (1 day, 3 days, 7 days later, etc.). View your retention progress on a graph to ensure you never miss the critical moment for memory maintenance. *Ruthless "Weak Point Elimination" System Problems marked "Hard" or "Incorrect" three times are automatically moved to your "Flagged List." Before exams, focus exclusively on this list to efficiently overcome your weaknesses. *Motivation-Boosting "Tokens & Statistics" Earn "Tokens" for every problem you solve. Tokens are doubled for review questions, naturally building a habit of prioritizing revision. Track your growth with daily, weekly, and monthly graphs showing progress, accuracy rates, and token counts. *Powerful Study Tools • PDF Viewer: Open your problem sets and answer keys in multiple tabs for seamless side-by-side study. • Custom Notes: Attach images, PDFs, or text notes to specific problems to create your own personalized reference book. • Task Management: Create study tasks linked to specific problems with strict deadline management. Recommended For: • High-Stakes Test Takers: Ideal for CPA, Bar Exam, Language Certifications, and University Entrance Exams where output volume is key. • Those Who Hate Planning Reviews: Stop worrying about "when to review." Let the algorithm decide so you can focus entirely on "solving." • Busy Professionals & Short-Term Learners: For those seeking a strategic approach to cut out waste and focus only on low-retention areas. • Those Who Fear "False Confidence": Visualize your actual memory state. Adjust your peak retention perfectly for exam day.
Screenshots
Verdict
The clearest difference is in-app purchases: TacticalStudy at none against MistakeBook's 1. TacticalStudy also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. TacticalStudy asks for nothing beyond the download.
MistakeBook ships an update every 2 weeks, TacticalStudy every 3 days. The most recent releases landed on October 3, 2026 and September 28, 2026 respectively.
| Parameter | MistakeBook | TacticalStudy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 17.6 — better |
| Further details — not scored | ||
| Size | 72 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Wei Shuo Wu | Yutaka Mochida |
In-app purchases
MistakeBook
- MistakeBook訂閱方案$0.996 Months
TacticalStudy
No in-app purchases









