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Submersion Dive Log

Submersion Dive Log

Scuba Dive Log

4 ratings
2 reviews
✈️ Travel
⚽ Sports
Free

Details

  • Released
  • Updated
  • March 10, 2026
  • July 9, 2026

Features

Developer

Eric Griffin
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About

This app is a comprehensive, open-source dive log for recreational and technical divers. It allows users to track unlimited dives, manage gear, analyze trends, and export data. The app offers dive computer integration, advanced profile analysis, and detailed logging for various dive types and conditions.

✓Log unlimited dives with detailed conditions
✓Dive computer integration
✓Advanced profile analysis
✓Technical diving support
✓Gear and equipment management
✓Dive site database with maps
✓Marine life tracking
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What's New in Submersion Dive Log

1.6.0

July 9, 2026

v1.6.0's centerpiece is a completely rebuilt dive planner: a live profile canvas that recomputes your schedule as you edit, real closed-circuit planning with a worst-case bailout solver, contingency and lost-gas plans, turn pressure and rock-bottom checks, and plans that save, sync, share, and print. Around it, this release adds three new ways to get dives into your logbook: scan a paper logbook page with your camera, import a whole folder of dive files at once, and record a surface GPS track on your phone that positions dives your computer couldn't. It also gives you a way out of a stuck sync, unifies the cylinder information on the dive detail page into one card, and fixes the reason large Shearwater logbooks could never finish downloading.

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User reviews

Most RecentHighest RatedLowest Rated

Nice app has promise but

It’s a nice app. The UI is beautiful however it’s still a little rough around the edges. I was looking for something to replace this year water dive app, which is awful and this isn’t gonna cut it. I’ve opened up a few bug requests but they keep getting closed and the issues are never really solved, but I’ll give it three stars because the UI is really nice.
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Dschlosser15Dschlosser15

This is the one log app to rule them all

Finally! A full-featured, modern dive log app. Submersion has everything I’ve ever wanted in a dive log app and more I didn’t even think about. It’s amazing that this is free, open-source, and completely private. There are a few rough edges, but nothing that would stop me from recommending this app to other divers. I’m still trying to figure out importing all my dives and locations, and syncing between my devices. This isn’t on the developer, but the version here on the App Store is behind what is available as a direct download.
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mg-01mg-01

FAQ

What types of dives can I log with Submersion?

Submersion supports over 20 dive types, including night, wreck, cave, and technical dives. You can log details like depth, duration, temperature, visibility, current, and more for each dive.

Can Submersion connect to my dive computer?

Yes, Submersion offers dive computer integration via Bluetooth or USB for brands like Shearwater, Suunto, Mares, Aqualung, and Garmin. You can import dive profiles with one tap.

Does Submersion have any subscription fees?

No, Submersion is completely free to use. It does not have any subscriptions, proprietary lock-in, or costs associated with its features.

How does Submersion handle data backup and syncing?

Submersion offers cloud sync via iCloud or Google Drive, allowing you to sync across all your devices. It also has a local-first design, meaning it works completely offline.

Can I export my dive data from Submersion?

Yes, you can export your dive data in open formats such as UDDF, CSV, or PDF. This ensures your data is accessible and not locked into a proprietary system.

What kind of analysis does Submersion provide?

Submersion offers advanced profile analysis with interactive charts, decompression algorithm visualization, ascent rate monitoring, and O₂ toxicity tracking. It also provides statistics on dive frequency, gas mix distribution, and personal records.

Is Submersion suitable for technical divers?

Absolutely. Submersion is built for technical diving with multi-tank support, full gas mix tracking (Air, Nitrox, Trimix), MOD/END/EAD calculations, and gas switch markers on dive profiles.

Does Submersion have ads?

No, Submersion is ad-free. As an open-source application, it focuses on providing a clean and uninterrupted user experience without advertisements.