PrimeTimer is a customizable boxing timer and interval timer for boxing rounds, HIIT, MMA, Tabata, circuits, and structured workouts. Build routines fast, train hands-free, and stay on pace with sounds, vibration, and voice cues.

Build custom routines

Create routines with:
• Timer-based or rep-based rounds
• Work, rest, and prep times
• Round multipliers to repeat a round
• Laps to repeat the full routine
• Drag & drop sorting
• Round notes you can view or edit during training

Audio cues, vibration & warnings

Stay on pace with:
• Custom sounds with trimming
• Start/end cues and countdown warnings
• Multiple vibration patterns

Text-to-speech voice cues

Optional voice announcements for:
• Round names
• Rest periods
• Next round
• Routine completion
• Round notes

During-routine controls

Control your workout without rebuilding the routine:
• Pause / resume
• Next / previous round
• Skip ±5 seconds
• Round list overview
• Next-round preview

Share, import, backup

• Share routines with a link
• Import shared routines directly
• Export and import routines and settings for backup

Personalization

• Light / dark theme
• Keep screen on
• Multi-language support: English, Russian, Spanish, Brazilian Portuguese, Hindi

PrimeTimer is built for boxing training, HIIT, Tabata, circuit workouts, strength timing, rehab, stretching, and focused interval sessions.