No catch. This page is the promise.
The timers on this website are free, and they will remain free forever.
I first created these timers as a side project in middle school, posting radial timer videos on YouTube. Seeing students and teachers across the world use these was a joy, and part of my interest in statistics and data nowadays came from the hours I spent researching what made timers more effective.
This site is a gift back to the education community, which has given so many people, me included, so much opportunity. Students and educators will always have all timers free to use. The site also relies on ads to fund its maintenance; thank you for your understanding. I hope you enjoy these timers.
— Filbert Ephraim Wu