Scuba diving
Your dive computer, on your dive video
Data Overlay turns your dive log into a depth gauge and a dive profile that follow your footage, with dive time, no-decompression limit, tank pressure, gas mix, SAC rate and water temperature.
Free trial, then from $19.99 a month, $79.99 a year or $129.99 once. See pricing

Live demo
Try Scuba Diving mode right here
This is the real app running in your browser on a sample dive. 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 Scuba Diving 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
- Depth gauge
- Dive profile
Numbers
- Depth
- Dive time
- Water temp
- Ascent/descent
- Max depth
- NDL
- Tank pressure
- Gas mix
- SAC rate
More gauges
- Compass
- Depth gauge and dive profile with a marker that follows your footage.
- No-decompression limit from your dive computer’s log, or worked out with Bühlmann ZHL-16C and your own gradient factors.
- Tank pressure and SAC rate, with the cylinder size from your log or picked from common tanks.
- Gas mix: air, EAN32, EAN36 or your own oxygen and helium mix.
- Salt or fresh water.
- Several dives in one log? Export one dive or the whole log.

For video only. Never use Data Overlay’s NDL or any of its values to plan or conduct a dive.
Your files
Works with the log you already have
- Garmin Descent FIT
- Shearwater, Suunto and others UDDF export
- Subsurface which reads almost every dive computer
- Dive computer CSV exports including decimal commas
Reads FIT (Garmin Descent), UDDF, Subsurface and CSV
Tip
No NDL in your log? Data Overlay works it out with Bühlmann ZHL-16C and the gradient factors you set.
Combine files
Use more than one file at once, for example the log from your dive 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 dive
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.