How true is your eye?
Five tiny tests of geometric judgement. Ninety seconds. Every day. Free — actually free.
Look. Lock it in. See how far off you were.
Mark the middle of the line. Lock it in. EyeUp shows you exactly how far off you were — to the tenth of a degree. Five trials, scored out of 500, then tomorrow you try to beat yourself.
Look.
One shape, one question. No rules to learn, because there aren’t any.
Lock it in.
Place your mark by eye. Touch gets a lifted marker; keyboard gets fine-nudge.
See the truth.
The reveal: your guess, the true answer, and exactly how far apart they are.
Ninety seconds. Five judgements.
Middle of the line
Halve it by eye alone.
Centre of the circle
Find the dead centre.
Split the angle
Bisect it, no protractor.
Make a right angle
Square the corner by feel.
Match the length
Draw its equal, by eye.
Your eye, measured.
EyeUp remembers every trial and turns it into your calibration: which skills are sharp, which drift, how you trend over weeks.
A jeweller’s eye is made, not born.
Game Center, if you want it.
Two leaderboards — today’s scores, wiped clean at every UTC midnight, and your best daily ever — plus fourteen achievements from Fresh Eyes to The Long Gaze. Entirely optional — EyeUp never needs an account.
One eye, all screens.
iPhone, iPad and Mac. iCloud keeps your calibration in step — pick up on any device, stay on streak.
Free. Actually free.
Your results live on your device and in your iCloud. We never see them.
EyeUp is forged by NetSmiths — the UK studio behind Subception and Dayception.
Questions, answered.
How is it free?
It’s a NetSmiths studio piece — no ads, no tracking, nothing sold. We make paid apps; this one’s for the love of it.
Is today’s puzzle the same for everyone?
Yes — generated on your device from the date. No servers.
Where’s my data?
On your device and in your iCloud. We never see it.
Mouse vs finger?
Touch gets a lifted marker and everyone gets keyboard fine-nudge — the playing field is level.
Ninety seconds a day.
How true is yours?
iPhone · iPad · Mac — free, actually free.