1Round

Train harder.
Round by round.

A precise interval timer built for boxing, MMA, HIIT, Tabata β€” and every workout in between.

No ads, ever Works offline Live Activity
Features
Everything you need
Five professional presets ready to go, or build your own.
⏱️ Precise Timing

Wall-clock accuracy. Timer stays on track even after phone calls or interruptions.

πŸ”” Smart Sounds

Distinct bells for round start, final round, warning, rest, and finish.

πŸ“± Live Activity

Track your round and time remaining on the lock screen and Dynamic Island. PRO feature.

⚑ Warning Countdown

Configurable warning signal before each round ends so you're never caught off guard.

πŸ₯Š 5 Built-in Presets

Boxing (12Γ—3min), HIIT, MMA (5Γ—5min), Tabata, and a Custom preset β€” ready immediately.

🎡 Custom Sounds

Import your own audio files from the Files app. Use any sound you want. PRO feature.

How to use
Quick start
Get your first workout running in under 30 seconds.
1
Choose a preset

Tap the list icon (top-left) to open your presets. Select Boxing, HIIT, MMA, Tabata, or Custom. The timer loads immediately.

2
Adjust rounds and timing

Use the οΌ‹/－ buttons to set the number of rounds. Tap ROUND, WARNING, or REST to change durations with the wheel picker.

3
Hit START

The timer begins immediately. The screen colour changes with each phase β€” green for round, amber for warning, red for rest, purple for done.

4
During the workout

Tap PAUSE to freeze time, SKIP to jump to the next phase, or RESET to start over. A confirmation dialog protects against accidental resets.

Controls reference
β–Ά
START / RESUME Starts a new workout or resumes from a pause.
⏸
PAUSE Freezes time. The screen blinks to remind you the timer is paused.
⏭
SKIP Jumps immediately to the next phase (round β†’ rest β†’ round).
β†Ί
RESET Returns to the setup screen. Asks for confirmation if a workout is in progress.
Settings
πŸ”Š
Master volume Controls the volume of all timer sounds independently of the system ringer.
πŸ””
Sound selection Choose a different sound for each event: round start, final round, warning, rest, and finish. Preview sounds with the play button. PRO feature.
⏱
Stopwatch An optional count-up timer on the setup screen. Toggle it on in Settings β†’ Display.
🏁
Skip Final Rest When on, the workout ends immediately after the last round with no rest period.
1Round PRO
Build your perfect workout
The free version includes all 5 built-in presets and every sound. PRO unlocks full customisation.

πŸ‘‘ PRO includes

  • Create unlimited custom presets with any combination of rounds, durations, and sounds
  • Edit all preset settings β€” rounds, timing, warning duration, and more
  • Choose custom sounds for every workout event (round start, final round, warning, rest, finish)
  • Import your own audio files from the Files app
  • Live Activity & Dynamic Island β€” see your round and timer on the lock screen
πŸ‘‘
PRO Yearly Full access, billed annually. Cancel anytime from App Store settings.
∞
PRO Lifetime Pay once, keep forever. All future PRO features included.
Support
Need help?
Something not working as expected? Get in touch.
βœ‰οΈ
Email support kazimir.majo@gmail.com