On-device acoustic shot timer
Count every shot.
Keep every session.
A shot timer that hears the difference between your shots and the echo — and remembers every string you have ever fired, on your phone and on the web. It gets sharper the more you shoot.
Free beta · no echoes, no double-counts · iPhone
Hears only you
On-device ML rejects echoes and the shooter in the next lane — the false-detection problem every microphone timer has, solved in software on the phone you already own.
Every session, forever
Your complete shooting history, owned by you, on your phone and on the web. No hardware timer keeps a single run after you leave the line.
Gets sharper
Your corrections train the next model. Detection improves the more you — and the community — shoot. Stated plainly, never overclaimed.
Free practice target
Print the WP-1. Shoot it. Score it from a photo.
The WP-1 Precision target is designed for camera scoring: corner markers let the app verify its ring alignment against your photo to a fraction of a millimeter, and an orange mid-tone bull keeps bullet holes visible where black bulls swallow them. Free to print, no account needed.
Print at 100% scale — no “fit to page.” The 1-inch bar on the sheet is your check.
Already shot one? Score it at app.whirledpiece.ai/t/wp1 — no app needed.
Letter size · print at 100% · works with the in-app scorer
Your history, on every device
See yourself getting faster.
Every session you ever shoot is logged, kept, and yours — splits, first-shot time, detector confidence, the full waveform. The phone is the range tool; the web is the quiet place to review, compare, and track real progress over weeks and months.
Best split
0.16s
improved 0.04
First shot
0.94s
30-day average
Sessions
214
all-time logged
Shots
3,180
all-time
Illustrative — the dashboard reads your live history.
The technology
Detection that improves with every trigger pull.
WhirledPiece runs a two-stage detector entirely on-device: a sample-accurate onset finder for timing, and a machine-learning gate that tells a real shot from an echo, a dropped magazine, or the lane next door. Every session you label feeds an auditable retrain loop — so the model gets measurably better, and your timing data gets more trustworthy, over time.
Edge ML by Soundside Design
On-device acoustic event detection — the same edge-AI capability Soundside builds for defense and dual-use, proven in the wild.
On-device
no cloud needed
Sample-accurate
true onset timing
Auditable
retrain loop
Already shooting with us?
Link your account, then open the dashboard.
Link Apple or email in the iOS app’s Settings to keep your identity intact, then sign in here and your full session history appears automatically — same account, every device.
Beta · Free—WhirledPiece is in beta and free, and the core experience will stay free. Down the road we may add optional paid tiers for advanced features or storage — nothing you rely on today goes behind a paywall. Found something off? Tell us.