MistakeBook: Exam Flashcards

📚 Turn mistakes into smarter revision with MistakeBook - Exam Flashcards.
MistakeBook is an offline exam flashcards and mistake notebook app for students who want to learn from the questions they get wrong. Capture a question, hide the answer, save the correct method, and review it later with spaced repetition.
Instead of letting wrong answers disappear into notebooks, screenshots, or old test papers, turn them into a focused revision system you can use every day.
📸 CAPTURE QUESTIONS IN SECONDS
Create flashcards from the way you already study:
• Take a photo with your camera
• Choose a question from your gallery
• Add text questions and answers
• Record audio notes
• Crop and rotate images before saving
No complicated setup is required. Save first, organize later.
🙈 HIDE ANSWERS & TEST YOURSELF
Turn photographed questions into active-recall flashcards by masking the answer area.
• Draw answer masks over photos
• Keep answers hidden until reveal
• Review image questions without seeing the solution
• Use text, image, and audio content
Useful for formulas, diagrams, multiple-choice questions, definitions, worked examples, and exam corrections.
🧠 LEARN FROM EVERY MISTAKE
For every saved question you can keep:
• Your wrong answer
• The correct answer
• Why you got it wrong
• A short “next time” reminder
• Subject, chapter, exam, tags, and source notes
Build your own wrong answer notebook and understand which mistakes keep repeating.
🔁 SPACED REPETITION FLASHCARDS
MistakeBook schedules review cards so you can focus on what needs attention instead of rereading everything.
After revealing an answer, rate your recall:
• Again
• Hard
• Good
• Easy
Use scheduled review for long-term revision or separate practice for extra exam preparation.
⚡ QUICK 5-MINUTE REVISION
Start a focused five-minute study session when you are short on time.
Great for daily revision, exam preparation, commute study, quick practice, and repeated mistakes.
📂 ORGANIZE YOUR STUDY MATERIAL
Keep your flashcards easy to find with:
• Subjects
• Chapters
• Exams
• Tags
• Mistake reasons
• Search and filters
Create your own structure for school, university, entrance exams, competitive exams, certifications, or professional learning.
🎯 FOCUS ON WEAK AREAS
See due flashcards, repeated mistakes, weak topics, recent captures, review history, and needs-attention items.
📊 TRACK YOUR PROGRESS
Understand how your revision changes over time with:
• Reviews completed
• Cards reviewed
• Review recall
• Subject performance
• Error-type breakdown
• Weak topics
• Study activity
Your progress comes from your own review history — not a fake exam score or AI-generated prediction.
🔒 OFFLINE-FIRST & PRIVATE
Study without creating an account.
Your questions, photos, recordings, notes, masks, and review history are stored locally on your device and remain available offline after they are saved.
No social feed. No requirement to upload your study content to a developer server.
☁️ BACKUP & RESTORE
Keep control of your study library:
• Create a complete local backup
• Restore your flashcards on another device
• Optionally back up to Google Drive
• Keep photos, audio, masks, review history, and schedules together
• Export selected study content when needed
Google Drive is used for optional backup and restore, not live multi-device editing.
🌙 MADE FOR DAILY STUDY
• Light and dark themes
• Phone and tablet layouts
• Search and filtering
• Local reminders
• Accessible controls
Whether you are preparing for school exams, university tests, entrance exams, competitive exams, certifications, or personal learning, MistakeBook helps turn wrong answers into useful exam flashcards you can review again and again.
📘 Capture the mistake.
🧠 Understand it.
🔁 Review it.
🎯 Make it less likely to happen again.
Build a better mistake notebook. Study with smarter flashcards. Revise with purpose.

Recent changes:
✨ What's new in MistakeBook!

📱 Fits every phone better: no more gaps above the header or below the menu on Android 13 and older
🛡️ Safer backups and imports: damaged or unsafe files are blocked, and your notebook is never touched
🧹 Frees up storage: leftover import files are cleaned up automatically
⚡ Smaller, faster app
📝 Viewing a question without editing no longer leaves a draft
💙 Still free, supported by a few ads. Never while you study.