SpeedScope measures passing objects live through the camera: cars, people, balls and 80 object types. Each gets a box with live and top speed.
Get it on Google Play How it worksEverything runs in the app, mostly offline. Measurements and files never leave your device.
AI (YOLO) finds objects every frame, the tracker follows them with IDs. Stable 2-second average on screen: 12.4 km/h (54.2 km/h), instant plus max in brackets.
Meters-per-pixel computed directly from a known-size object (e.g. average car width) — no distance guessing. Pick a reference object, its frame turns bold, every lock updates the distance.
Box or dot style; auto by speed, single or per-class colors; label, ID, instant/max/rank toggles; dot and font sizes down to tiny.
Digital zoom plus two-finger pinch. Scale follows automatically, calibration holds.
Clean full-resolution JPEG or framed shot. Automatic violation photos over your limit.
Plain video (optional microphone audio) or boxed screen recording. 60 FPS mode on supported cameras.
Per rule: notification, email, sound alarm, on-screen banner and vibration. Set your own thresholds.
The fastest speed is spoken in your language. Scene records are voiced too.
Recent events (name, speeds, timestamp, distance) stream on screen; the full file is kept and exportable.
Ball, skater, RC and traffic: settings auto-configure, the target's best locks into a badge and is voiced.
Detection threshold, smoothing, min speed, box filter, ghost time, object count (up to Maximum), detection stride and factory reset.
Full UI, object names and help translation.
Try free, upgrade as needed. Payments securely via Google Play.
| Feature | Free | Standard | Pro | Enterprise |
|---|---|---|---|---|
| Objects | Fastest 3 | Fastest 10 | Unlimited | Unlimited |
| Session | 3 minutes | Unlimited | Unlimited | Unlimited |
| Lenses + zoom | — | All + pinch | All + pinch | All + pinch |
| Frame studio | — | Yes | Yes | Yes |
| Plain photo / video | — | Yes | Yes | Yes |
| Auto calibration | — | — | Yes | Yes |
| Alerts (5 channels) | — | — | Yes | Yes |
| Boxed photo/video, log | — | — | Yes | Yes |
| Scenes, 60 FPS, voice | — | Voice | All | All |
| Reports, multi-device, priority | — | — | — | Yes |
Accuracy lives in calibration. Automatic calibration derives scale directly from a known-size object, so it is the most accurate; film sideways for best results.
80 types including cars, people and balls. Pick which to follow from the target list.
Nowhere. Measurement happens on-device; photos and videos stay in your gallery. No account, no tracking, no ads.
Android 8.0 and up. A recent phone is recommended for the smoothest experience.
Objects approaching dead-on move few pixels; it is a physics limit. Film passing traffic.