Your phone's mic listens to the break. An audio engine detects the cue-ball strike and rack scatter, then calculates impact speed.
No hardware. No radar gun. Just your phone.
Readings are speed estimates, not radar measurements. Use them as consistent training feedback.
Flat on the rail near the rack, mic side facing the table.
- Same spot every session for consistent data
- Stable surface only — never handheld
- Don't touch the phone while recording
- Record 3 breaks per session for the best read
Every reading is scored on how cleanly the impact was detected.
Only HIGH-confidence breaks count toward your benchmark and Ideal Zone.
After each session, a quick tag sheet appears. Mark what actually happened on the table.
These tags feed the coaching algorithm. The more you tag, the smarter it gets.
Every session builds your personal coaching picture.
Tag enough breaks and the app learns which speed range gives you real results — balls dropping, racks opening, runs happening.
That range becomes your Ideal Zone.
- Unique to your game, your table, your rack
- Updates automatically as you keep playing
- Add player profiles to track multiple shooters
Tap the player pill at the top of any screen to get started.
Measure Your Break
Record 3 breaks for your most accurate reading
Break Setup 9 ft · 8-ball · Center ›
Playing surface size, rail-to-rail — not outer table dimensions
Use existing recording
Diagnostics›
| File | Conf | pairScore | evtQual | timing | dom |
|---|
Record a break session to get started.
mph across recorded attempts
σ mph per session · lower spread = more repeatable