Chalk Up
An interval timer for functional fitness. AMRAP, For Time, EMOM, Tabata and custom chains, with cues that keep sounding over your music and through a locked screen.
An interval timer for functional fitness. AMRAP, For Time, EMOM, Tabata and custom chains, with cues that keep sounding over your music and through a locked screen.
We will never run ads. Not now, not later, not if we get big. No subscription, ever. You paid once, and that is the whole deal.
AMRAP, For Time counting up or down against a cap, EMOM, Tabata, and Custom, which chains any of them into one sequence.
Save the workouts you actually do and start one from the home screen in a single tap.
A big field under the clock, sized to be hit mid-workout. Your total is waiting when the clock stops.
A lead-in you set from one to fifteen seconds, a midway call, a ten-second call and a final 3-2-1. Each switches off on its own.
Cues layer over your playlist rather than interrupting it, and the volume goes to 200% so they sit behind the track or cut clean through.
The cues keep coming with the app in the background and the screen locked, and the clock is driven by real time so it cannot drift.
| iOS | 15.0 or later |
| Devices | iPhone, portrait and landscape |
| Category | Health & Fitness |
| Price | 0.99, once. No in-app purchases |
| Internet | Not required. The app makes no network requests |
| Languages | English |