What this is.

practicalhit.com is the public leaderboard for Parably — a phone-camera + laser-cartridge dry fire trainer. Every attempt the app records can be uploaded to this site and ranked against everyone else's.

How runs land here

• You shoot a Parably attempt on your phone.
• App finalises the result, writes it to local DB, fires a copy at practicalhit.com/api/telemetry/attempt.
• The server re-runs zone classification on the saved coordinates to make sure the claimed Hit Factor matches the rules. Mismatches get hidden until manual review.
• Runs at LOW confidence (poor lighting, calibration drift, too-many-rejections) are excluded automatically — they never advance a personal best.

What we collect

• Anonymous per-install device id (UUID, no PII).
• Per-attempt: total time, hit factor, zone counts, splits, confidence verdict.
• Per-shot: zone, normalised hit position, target index.
• Optional per-detection log so we can debug why a shot was rejected (capped 1 MB per attempt).
• Crash stack traces with file paths scrubbed.

If you opt in to a shooter handle (P2), the handle and your country are public on the leaderboard. The device id, email, and raw frames are never shown.

Anti-cheat

• Server re-scores from the saved per-shot coordinates.
• An attempt without a detection log can't reach the public board — only flagged for manual review.
• Implausible runs (HF > 12 with HIGH confidence and absurd draw time) are queued for human eyes.

Get the app

Android only for now. Sign-up flow + iOS land in the next iteration. The roadmap is in the repository.