I built a timer that doesn't tell you when it ends - here's why that's the whole point

Hi Product Hunt!

I got tired of watching the clock during planks.

You know that thing where you're 40 seconds into a plank and you glance at the timer, see you have 20 seconds left, and suddenly that's all you can think about? Your form drops, your breathing changes, you're just surviving to the number.

So I built Spin Timer. You set a range - say 30 to 90 seconds - and the app picks a random time somewhere in there. You never know if it's 34 seconds or 87. You just go until it stops.

Turns out not knowing when it ends completely changes how you perform

How I actually use it:

• Workouts - planks, wall sits, isometric holds. Every set feels different. No sandbagging the last 10 seconds.

• Games with friends - Hot Potato, trivia rounds, dare challenges. When nobody knows when the buzzer drops, everyone stays locked in.

• Focus & meditation - start a session and actually be present instead of negotiating with the countdown.

• Reading - instead of committing to "exactly 15 minutes a day", you set a range like 10–20 min and just read. Sometimes it's less, sometimes more - but you're never focused on hitting a specific number. You're focused on the book. The goal is building the habit, not watching the clock tick to a target.

It's free, no account, works offline. Just set a range and spin!

Spin Timer on Google Play
Spin Timer Web App

Would love to hear if anyone else has this "watching the clock" problem - or if you find weird use cases I haven't thought of yet