Speed Overlay Video App for Android

VelocityCam records the video and the speed data at the same moment, so the number shown on screen belongs to that frame. When you export, the overlay is rendered into the new file — no separate editing pass, no guessing at timing. VelocityCam is not currently a general-purpose editor for importing arbitrary external videos; the telemetry has to be captured by VelocityCam while the video is recorded.

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How the speed overlay is produced

Speed comes from the phone's GPS receiver and is sampled alongside the video timeline. Nothing is estimated after the fact, and the original recording file is never rewritten.

GPS-derived speed in MPH or KM/H
Speed samples aligned to the video timeline as it records
Live overlay on screen while recording
Same overlay reproduced during Library playback
Overlay composited into exported files
Original recording preserved untouched

When a speed overlay is the point

Scenic drives, acceleration clips, boat runs, trail rides, and track days all read better with a speed readout that viewers can trust. Because the value is captured live, the clip is self-documenting rather than annotated later.

Recording a speed overlay clip

1
Wait for GPS lock
VelocityCam blocks recording until GPS is locked so the very first frame already carries real speed.
2
Record with the HUD you want
Pick a HUD profile before you start. The profile you choose is what appears on screen and, later, in the export.
3
Export with the overlay baked in
Choose Original, 9:16 Vertical, 1:1 Square, or 16:9 Landscape. The overlay is rendered into the new file and the source recording stays as it was.

Free

Speed, G-force, pitch, and roll captured with the video
Classic, Handheld, and Minimal HUDs
Synchronized playback
Exports in all four aspect ratios with the HUD baked in
Quick Share to the usual social destinations

Pro — one-time lifetime unlock

Adventure HUD profile and premium themes
Watermark control (standard, custom text, or none)
Offline Route Trace overlay in playback and exports
CSV, GPX, and KML telemetry export
Advanced session statistics

Nothing leaves the phone on its own

There is no account, no cloud upload, and no analytics or advertising SDK in the Android app. Recordings and telemetry stay on the device until you export or share them yourself.

Read the full Privacy Policy →

Device requirements

Android 10 or newer
Compatible rear camera (front-camera switching before recording, where supported)
GPS hardware
Motion sensors for pitch, roll, and G-force on mounted recording
Free storage for recording and export

Frequently asked questions

Can I add a speed overlay to a video I already recorded elsewhere?

No. VelocityCam records telemetry together with the video, so it cannot add accurate speed to footage captured by another camera or app.

Does the overlay change my original file?

No. Exporting creates a new file; the original recording is left untouched.

Is the speed accurate enough to prove anything?

It is consumer GPS from a phone. It is good enough for reviewing and sharing a session, but it is not a certified measurement and should not be treated as legal proof.

Can I get a speed overlay without mounting my phone?

Yes. The Handheld HUD shows GPS-based speed and other performance metrics without requiring a fixed mount, which suits passengers or anyone recording on foot.

Open Testing Now Available

Install VelocityCam and start recording

VelocityCam is open for testing on Google Play. Install the test build on any Android 10+ phone, record a real session, then tell us how it went.

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Release Updates

Get notified about the public release

Open testing is live. Join the VelocityCam update list and we'll email you when the full public Google Play release becomes available, along with a small number of important major-update announcements. No daily emails and no spam.