Round Sport Timer

Open the Timers tab and tap ▶ on any preset — the workout starts right away: get-ready countdown, then work / rest rounds with clear sound and vibration signals. The screen stays awake while the timer runs.

Ready-made workouts on the Presets tab — tap one to create an editable copy:

• Boxing 12×3 — classic 3-minute rounds, 1-minute rest
• Amateur 3×3 — amateur boxing format
• Tabata — 20s work / 10s rest × 8
• HIIT 45/15, EMOM, Circuit and more

Tap ＋ on the Timers tab. In the editor set: number of rounds, round (work) time, rest time, get-ready time, cooldown, and the warning signal (beep N seconds before a phase ends). Tap any duration to open a native minutes:seconds wheel picker, or fine-tune with the − / + buttons.

Switch Type to Custom and build sets of segments:

• each segment has its own phase, duration and optional name (e.g. “Sprint”, “Heavy bag”)
• a set repeats N times — e.g. [Work 15s + Work 10s + Rest 30s] × 8
• give segments individual colors to tell different exercises apart at a glance
• reorder segments with ↑ / ↓, add as many sets as you need

The timeline preview at the bottom of the editor shows the whole sequence and total duration before you save.

Every profile has three signal roles, each with its own sound picked from 18 options (bells, gong, air horn, beeps, chimes and more) — set them in the profile editor under Sounds:

• Round start — plays when a work phase begins
• Round end — plays when work ends and at the finish
• Warning — plays N seconds before a phase ends

Tap ▶ next to a sound to preview it. Signals play even when the phone is in silent mode and over your music — you can't miss a round in a noisy gym. Turn sound or vibration off in Settings.

• Big circular countdown with phase colors — readable from across the gym
• +10 / +20 / +30 / +60s — extend the current phase on the fly (great for coached sessions); works while running or paused
• Pause / resume / stop at any moment
• Workout summary at the end: rounds, total time, work time — with instant repeat

• Tap a card to edit it; tap ▶ to start it
• Delete: swipe the card left about two-thirds of the screen and release

The Settings tab:

• Sound — all timer signals on/off
• Vibration — haptic feedback on phase changes
• Keep screen awake — display stays on during a workout
• Theme — Light, Dark, or System (follows your device)
• Language — English or Ukrainian, switches instantly

Round Sport Timer works fully offline. There is no account, no analytics and no tracking. All profiles and settings are stored only on your device; deleting the app deletes the data.