About Eyeball Geometry
Eyeball Geometry (Göz Kararı, Turkish for "by eye") is a minimal geometry game that measures how precise your eye and your finger really are.
Three quick challenges:
- Find the center: tap the centroid of the shape.
- Split in half: mark the exact middle of the line.
- Fill to percent: fill the shape to the target ratio. Careful: area counts, not height, so narrow necks will fool you.
After every guess the true answer appears next to yours and your error is shown as a percentage. The closer you are, the more points you earn. A run is 5 shapes and takes about a minute. You can also play 10-shape runs, runs focused on a single mode, or score-free practice.
FEATURES
- Mixed runs or a single mode: Center, Split, Fill
- Relaxed, Normal and Master difficulty
- A new daily task every day
- Keep your streak alive by playing every day
- Your best runs and sharpest guesses, kept on your device
- Share your result as an image or text, or save the image to your gallery
- Optional daily reminder (notification permission is only asked if you turn it on)
- Magnifier, confirm-to-lock, left-handed layout, reduce motion and screen reader support
- Light and dark themes; available in 15 languages
NO ACCOUNT, NO CONNECTION NEEDED
No account or sign-up. Your runs, records and settings are stored only on your device, and the game plays fully offline.
FREE TO PLAY
The whole game is free; no mode or feature is locked. Ads may appear at the end of runs. If you'd like to remove them, there are optional purchases:
- Ad-free: a one-time purchase.
- Premium (lifetime): one-time; ad-free play and support for development.
- Premium (monthly or yearly subscription): ad-free play and support for development. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; you can cancel any time in your Google Play subscription settings.
Premium does not unlock new modes or content; it removes ads and supports the development of the game.
Eyeball Geometry is a game for fun; it is not a test, a measuring tool or a health app.
