Mountain biking
Prove it was that steep
Descents never look as steep on camera. Data Overlay adds a speedometer, a grade gauge and a trail mini-map from your bike computer or watch, with G-force, elevation gain and loss, heart rate and power.
Free trial, then from $19.99 a month, $79.99 a year or $129.99 once. See pricing

Live demo
Try Mountain Biking mode right here
This is the real app running in your browser on a sample ride. Turn gauges on and off, drag them around, change units and colours, and scrub through it. Opening your own files and exporting happen in the desktop app.
Sample data only. Works best on a computer. Open the demo full screen
What it shows
Every gauge in Mountain Biking mode
Start with the main gauges, add the essentials, or turn on everything. Size, move and colour each one, in imperial or metric units.
Main gauges
- Speedometer
- Grade
- Mini-map
Numbers
- Elevation
- Gain / loss
- Heart rate
- Cadence
- Power
- Distance
- Elapsed time
- Speed
More gauges
- G-meter
- Compass
- Elevation profile
- Heart-rate zones
- Speedometer with max speed, a grade dial and a trail mini-map.
- G-meter with peak G, from an accelerometer if your file has one, otherwise worked out from your GPS track.
- Elevation gain and loss as you ride.
- Heart rate, cadence and power from your sensors.
- Compass and elevation profile.

Your files
Works with the log you already have
- Garmin Edge and watches FIT
- Wahoo and other bike computers FIT
- Strava GPX or TCX downloads
- Apple Watch through HealthFit, RunGap or WorkOutDoors
Reads FIT, GPX, TCX and CSV
Tip
The FIT file from your bike computer has the most detail: speed, heart rate, cadence and power in one file.
Combine files
Use more than one file at once, for example the track from your bike computer and heart rate from your watch. Each gauge uses the best file that has its data, and each file gets its own clock offset.
Built for the edit
Made to drop straight into your timeline
- ProRes 4444 · PNG MOV · PNG sequence
Transparent, frame-exact exports
ProRes 4444 with alpha on a Mac, or lossless PNG on either platform. Export at your sequence’s frame rate and the overlay has exactly as many frames as your clip.
- ±0.1 s
Sync to the frame
Nudge each file’s clock in tenths of a second until the gauges match the picture. Files recorded on a local clock are lined up with UTC files for you.
- Best source for each gauge
Combine files
Take GPS from one device and heart rate or power from another. Each gauge uses the best file that has its data, with a clock offset for each file.
- Row · Stacked · Panel · Custom
Arrange it your way
Drag gauges anywhere with snapping guides, size each one, pick colours and units, and undo any change. The export frame fits your arrangement.
- Every CPU core
Fast, even for long days
Exports use every core, so an hour of footage renders in minutes. On Macs with a ProRes engine, encoding runs in hardware.
- Local processing
Your files stay on your computer
Logs and videos are read and rendered on your own machine. Nothing is uploaded.
Try it on your own ride
The free trial is the full app with every sport. Exports are 5 seconds long with a watermark until you buy. From $19.99 a month, $79.99 a year or $129.99 once.