🔢 Education MathBrain: Smart Screen Unlock
Solve math to unlock your phone and sharpen your mind.
MathBrain turns unlocking your phone into a quick brain exercise. Solve a math problem to get in, so the dozens of times you check your phone each day add up to real mental practice.
It’s for people who want to build a sharper mind — and a little friction against mindless phone-checking.
What it does
Math to unlock
A quick problem stands between you and your home screen.
Daily mental reps
Every unlock becomes a small workout.
Adjustable difficulty
Match the challenge to your level.
When to use it
- You want to keep your mental math sharp.
- You check your phone constantly and want that time to count.
- You want a little friction against mindless unlocking.
Frequently asked questions
Does it really lock my phone?
It adds a math step to unlocking; check the App Store listing for exactly how it integrates with your device.
Can I set the difficulty?
Yes — you can match the problems to your level.
Which devices does it run on?
It’s available for iPhone and iPad on the App Store.
Related reading
Try MathBrain: Smart Screen Unlock
Solve math to unlock your phone and sharpen your mind.