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Depthlog vs Subsurface: which dive log app fits your diving?
Matteo Beltrame
Founder of Depthlog
Desktop depth versus mobile speed
Diving Log 6.0 is a commercial Windows desktop application. It is a mature, feature-rich logbook with strong import support, plugins and a long history in the diving community.
Depthlog is a free web app designed for the phone. It focuses on the moment that matters: you surface, you log the dive in under a minute, and you plan the next one with the real residual nitrogen.
Side by side
| Depthlog | Diving Log 6.0 | |
|---|---|---|
| Platform | Web, mobile-first | Windows desktop |
| Price | Free forever, optional Supporter | Commercial licence |
| Best for | Recreational divers, trips, sharing | Desktop users who want a local archive |
| Import | UDDF, CSV, JSON | Many computers and formats |
| Repetitive-dive planning | Built in, mobile-friendly | Yes, desktop-oriented |
| Sharing | Buddy tags, map, certificates, share cards | Limited |
| Install | None | Windows install |
Where Diving Log 6.0 wins
- It is a mature desktop application with deep configuration.
- It supports a very wide range of computers and import formats.
- It is a good local archive if you prefer your data on your own machine.
Where Depthlog wins
- No install and no Windows requirement: it runs on the phone you already carry.
- Speed: the log form pre-fills from your own history, so a dive takes seconds.
- Planning on the boat: residual nitrogen, pressure groups and remaining bottom time in one screen.
- Sharing: a map, certificates and share cards your buddies can open.
- Free: the complete logbook, planner, analytics and exports are free.
How to move your history
Export your dives from Diving Log to UDDF or CSV, then import the file into Depthlog. The import checks for duplicates, so you can bring your archive in one pass without creating double logs.
Ready to try the web route? Create a free Depthlog account and import your file. No credit card required.
