Exercise Interval Timer

Train like a match official. Most Fit Timer is a referee fitness interval timer built around one protocol: 15-second sprint, 18-second walk, 20 rounds. No menus. No setup. Tap Start Test and run. Whether you are preparing for a football referee fitness test, a soccer assistant-referee session, a futsal or rugby officials workout, or you just want a strict sprint-walk HIIT timer, Most Fit Timer keeps the clock honest so you can stay on the whistle. HOW THE REFEREE FITNESS TEST WORKS • 15-second sprint — full gas. The whole screen goes blaze orange so you never glance down to check the phase. • 18-second walk — active recovery. Navy walk mode with a progress frame around the countdown. • 20 rounds — one complete referee interval session from round 1 to round 20. • 3-2-1 countdown — get set before the first sprint. • Pause overlay — resume the same round or quit back to the start screen. • Round tracker — square progress dots and a live round counter (for example 1/20). This is an interval training timer, a HIIT timer, a sprint timer, and a walking recovery timer in one. It is not a stopwatch you have to arm twice a minute. The work-rest split is locked so every official on the squad runs the same referee fitness session. BUILT FOR MATCH OFFICIALS AND SPRINT-WALK TRAINING • Football / soccer referees and assistant referees • Futsal, rugby, and basketball officials • Coaches running referee fitness drills on the track or the pitch • Athletes who want a no-frills 15s/18s interval workout • Anyone who needs a portrait-only fitness timer that starts in one tap WHY MOST FIT TIMER • One protocol, zero settings — 15s sprint, 18s walk, 20 rounds. Always. • Huge condensed numerals you can read at a glance while you run. • Distinct sprint vs walk screens so the phase is obvious in peripheral vision. • Pause and resume without losing the current round. • Local timer. No account. • No data collection — the app does not collect personal information, analytics, or session history. HOW TO USE IT 1. Open Most Fit Timer. 2. Confirm the badges: 15s Sprint, 18s Walk, 20 Rounds. 3. Tap Start Test. 4. Sprint on orange. Walk on navy. Repeat until 20 rounds are complete. Stay hard. No excuses. No settings. Most Fit Timer is an independent training tool. It is not affiliated with FIFA, UEFA, IFAB, or any national referees’ association. Always warm up, follow medical advice, and train on a safe surface.