Interval timer for boxing training with audio cues and configurable rounds.

BoxingClock is a simple, no-frills interval timer built for boxing training. The display is designed to be readable from afar and to be used in a boxing gym.
Features:
- Prep, Work, and Rest phases with configurable durations
- Fixed or unlimited rounds (∞ mode)
- 3 settings slots to switch between training configurations
- Audio cues: bell at phase transitions, clapper when 10s left, 30-second reminder, end bell
- Each sound individually toggleable
- Alarm stream audio, sounds stay audible while music is playing
- Mute button on the main screen
- Alarm volume control in settings
- Screen stays on while the timer is running
- Portrait and landscape support
- No ads, no tracking, no internet