iPhone app

Rounds — Boxing Timer

A boxing-style interval round timer, stripped to what matters: set it, start it, train to the bell. The timer keeps running with your screen locked. No account, no ads, nothing tracked.

What it does

Rounds Pro

A one-time purchase — not a subscription — that adds activity history and totals, a calendar of your training, Apple Health export, and a shareable workout card. The timer above stays free.