A Fivi Tech app
Unrust
Train every day. Get sharper every week.
Five short brain puzzles a day, each with a clear explanation. Unrust finds the skills you are rustiest at and helps you sharpen them. For iPhone, iPad and Android.
Coming soon
App Store
Coming soon
Google Play
A fresh set every day
Five short puzzles each day across logic, maths, memory, patterns, spatial, reading, words and spotting the flaw.
Learn, not just play
Every puzzle has a step-by-step explanation, with short lessons and drills for the skills you find hardest.
See yourself improve
A rating for each puzzle type shows where you are strong and where you are getting rusty.
Play straight away
No sign-up needed. Link Apple, Google or email later to keep your progress across devices.
Need help with Unrust?
Questions, bug reports and data requests go to the Fivi Tech team.