Derby Timer
For roller derby
Jam and penalty box timers in one place, built for the bench.
What it does
Derby Timer keeps the clocks that matter on a roller derby bout in one app: the jam, the period, timeouts and each skater’s penalty box time.
Big, loud buttons and high contrast mean you can use it under arena lights, with gloves on, without taking your eyes off the track.
Jam clock
Start, stop and call off a jam with big, clear buttons.
Penalty box
Track each skater’s penalty time and when they can stand.
Built for the bench
High contrast and big targets, so it works under arena lights.
Period and timeouts
Period clock, official timeouts and team timeouts in one view.
Works offline
Nothing needs a signal, so a bad venue connection never matters.
Screenshots
Questions
Does it need an internet connection?
No. Derby Timer works fully offline.
Can I use it on a tablet?
Yes. It works on phones and tablets.
Help and privacy
Stuck, or found a bug? Email hello@poldhu.app and we’ll get back to you. Read the Derby Timer privacy policy.
More from Poldhu
A Poldhu app · handmade in Cornwall · Poldhu Apps Limited