Find the hidden mistake
Inspect a sentence, fact, or pattern and tap the detail that does not belong.
Mistake Hunter for Android
Train your eye to spot mistakes.
Short, satisfying challenges that help you notice what others miss — with a clear explanation after every answer.
Private by design
Mistake Hunter works fully offline. It has no accounts, advertising, analytics, tracking, or in-app purchases. Your progress stays on your device.
A useful daily habit
Spot it. Understand it. Remember it.
Each hunt gives you something concrete to examine. Once you answer, a concise explanation shows why one choice works and another does not.
- Take one focused Daily Hunt
- Choose the skills you want to train
- Save favourite cases for later
- Review explanations and practical tips
- Track accuracy, activity, and streaks
Mini hunt
Can you catch all three?
This quick sample mirrors the app’s central loop: make a choice, get useful feedback, and move to the next case.
No score pressure. No endless feed. Just a small moment of deliberate thinking.
Open case1 / 3
Which version is correct?
Practise in different ways
Every case asks you to think.
The challenge format changes with the skill, so you are always making a meaningful choice instead of tapping through flashcards.
Choose the strongest answer
Compare plausible options and decide which one the evidence actually supports.
Rewrite or reorder
Make an unclear sentence work, or put reasoning steps back into a useful order.
Case library
476 challenges across seven categories.
Train one area or let the daily hunt mix things up.
Grammar
Logic
Mathematics
Observation
Writing
Knowledge
Critical thinking
Mistake Hunter 1.0
Ready for your next case?
The app is being prepared for Google Play. In the meantime, explore the support and privacy details behind the release.