BJJ Round Timer

BJJ Round Timer — the customizable interval timer built specifically for Brazilian Jiu-Jitsu, grappling, and combat sports training.

Whether you're rolling at open mat, drilling positions, or running competition-pace rounds, this timer adapts to your session. Set your work intervals, rest breaks, round count, and prep countdown — all in seconds.

KEY FEATURES

• Custom rounds: 1 to 50 rounds, 10 seconds to 60 minutes per round
• Quick presets: 5×5 min, 6×3 min, 8×2 min, 10×1 min
• Tap counter: log submissions, sweeps, or any move during work intervals
• Session log: last 10 sessions auto-saved on your device
• Drift-free timing: stays accurate even if your screen sleeps
• Audio cues: tick beeps in final seconds, bell tone on round start, victory chord on completion
• Optional voice countdown: hear "three, two, one" before each phase change
• Wake Lock: screen stays on during active rounds
• Vibration feedback on tap counter
• Dark theme optimized for OLED displays
• Accessibility: full keyboard navigation, prefers-reduced-motion support, screen reader labels

USE CASES

— Open mat rolling: set 5×5 min with 1 min rest, tap each submission/sweep, review log after class
— Drilling: custom 10×1 min sets, no rest, no taps needed
— Competition prep: 6×5 min hard rounds with 1 min rest, simulate IBJJF/ADCC format
— Conditioning circuits: tabata-style 8×2 min with 30 second rest
— No-gi training: same flexibility, no gi/nogi distinction in the timer itself

WHAT MAKES IT DIFFERENT

Most timer apps are boxing-first or generic interval tools. BJJ Round Timer is built around how grapplers actually train. The tap counter alone makes it easier to track submission attempts across an entire session without breaking flow. The bell tone on round start mirrors the combat sports convention, not a generic chime.

Five distinct screens guide your session: a setup screen with presets and custom controls, a prep countdown, the active round screen with circular progress and round pip indicators, a rest screen showing the next round number, and a done screen with full session stats.

The app runs entirely on your device. No accounts, no sign-up, no data sent to servers. Your settings, preferences, and session history are stored locally and never leave your phone.

PRIVACY

We collect no personal data, no advertising IDs, no analytics, no crash logs. The app does not require an internet connection after install. No third-party trackers, no social media SDKs, no Google Analytics.

Full privacy policy: https://digirasplus.github.io/bjj-timer-privacy/

GREAT FOR

Brazilian Jiu-Jitsu (BJJ) practitioners — gi and no-gi
Grappling and submission wrestling athletes
MMA and combat sports trainees
Anyone running custom interval training rounds
Coaches managing class round timing

Built by Digiras Software for the grappling community.

Contact: [email protected]

— Digiras Software, 2026