Submersion Dive Log

Submersion Dive Log

Scuba Dive Log

12 ratings
6 reviews
Free

Details

Released
March 10, 2026
Updated
October 5, 2026

Features

Background Location Access

Submersion Dive Log screenshot #1 for iPhone
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Submersion Dive Log screenshot #5 for iPhone
Submersion Dive Log screenshot #6 for iPhone
Submersion Dive Log screenshot #7 for iPhone
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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

1.8.1

October 5, 2026

## 1.8.1 (2026-10-04) ### Features - save the whole search, recent searches and suggestions in the search row (#2890) - Ask in the search row, Explore retired (3 of 4) (#2857) - flag the same gear on two profiles' overlapping dives (#2885) - tabs on every trip, a Prepare overview, one gear list and a map per story day (#2869) - transfer gear between profiles and keep in-use gear when a profile is deleted (#2867) - one Tracks nav entry for GPS and underwater tracks (#2840) - generate the dive computer catalog and add a report form (#2846) - one Refine panel for every dive filter (2 of 4) (#2807) - one search bar for the Dives list (1 of 4) (#2789) - link underwater routes from dive edit, reach routes from Settings > Manage (#2804) - pack a whole equipment set from the trip Gear card (#2800) - replace the Media section's desktop sidebar with app bar tabs (#2798) - make the Details tab readable and space its buttons (#2799) - move "Select items" into the overflow menu on every nav list (#2783) - group the import preferences under an Import header on Settings > Data (#2781) - record the data source each tank row came from (#2721) - show the entry count under every entity list's title (#2683) - phase 3, search sites, gear, buddies, species, trips and centers (#2674) - the trip's gas record (#2325) (#2668) - entity query language, PR 5: Explore on the shared registry and one name index (#2589) - DPV mission canvas, part 2: the mission's failure-scenario results (#2626) - pack gear for a trip, shown on the passport and the trip page (#2585) - fills in their own Submersion CSV (#2631) - fill forecast for the trip's cylinders (#2325) (#2630) - phase 2, SAC, final-stop and safety-finding fields on the query registry (#2579) - link dive tanks to trip cylinders (#2325, PR 3 of 5) (#2578) - DPV mission canvas, part 1: editing a mission (#2576) - the newest fill on the NFC tag, and the blender's cylinder (#2574) - entity query language, PR 4: buddies, centers, certifications, courses and species (#2572) - scroll the world maps across the date line and open on your dives (#2549) - the trip cylinder board (#2325, PR 2 of 5) (#2451) - DPV mission persistence and sync (PR 2 of 3) (#2538) - on-device natural-language search, phase 1 (core plus dives) (#2196) - entity query language, PR 3: sites, equipment and trips on the query engine (#2541) - default every metric source to the dive computer (#1859) (#1860) - the Connections explorer (#2454) - entity query language, PR 2: query editor, chips and saved queries (#2443) - choose the language a PDF export prints in (#2484) - bring in Connect notes, weight and dives with no FIT (#2471) - fold service and scrubber alerts into one collapsible panel (#2469) - sweep dead rows from the local cache database (#2435) - share gear between diver profiles and show its history (#2411) - download the Seac Tablet over BLE with a read-poll transport (#2419) - show set-aside restore copies in Backups (#2432) - trip cylinder slots, ledger and dive tank link (phase 1 data and sync) (#2331) - Rec / OC Tec / CCR Tec modes in the MOD calculator (#2387) - entity query language, PR 1: core engine and dives (#2391) - DPV mission planner domain and calculation engine (#2138) - import a divelogs.de logbook (#2390) - rename the Statistics section to Insights (#2385) - move Display options into the overflow menu; add Delete to embedded Edit Site (#2383) - add a line as a free amount or a priced gas fill (#2310) - consolidate 3D Maps and Offline Maps into one Offline Maps page (#2355) - move Equipment condition under Settings > Safety (#2357) - drop the date under the dashboard greeting on desktop (#2353) - hide individual built-in tank presets from the pickers (#2315) - add a gas density calculator for OC and CCR (#2340) ### Bug Fixes - keep the cylinder card's drag handle inside it, drop the dashes (#2958) - order a peer de

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User reviews

Amazing dive log app

I love my Shearwater but their logging applications for both mobile and PC are terrible. So glad I found Submersion it’s everything that I could ever want from a dive log app. So many tools and ways to analyze your dive data, track gear maintenance, check tides, save dive sites, cert and insurance info and so much more. I particularly love how it has both an iOS and PC app that syncs over the cloud since I prefer to log on my PC but having all that data and dive history in your pocket is priceless. Great job!
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Nice app and keeps getting better

It’s a nice app. The UI is beautiful and it continues to get better and better. I was looking for something to replace the Shearwater water dive app, which is awful I’ve opened up a few bug requests and they definitely get resolved. Super happy with this app.

Great App so far

I find this app much more feature rich and useful than shearwater cloud or Subsurface. There are a few things I trace wise I found confusing and certain items that seemed Barrie’s and hard to find. I find inputting gps coordinates correctly to be challenging, usually trial and error and using ChatGPT to convert them correctly to get them to work.

Seems like there are always new features which are nice and bug fixes are prompt.
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Need a bit of tech knowledge to get it running .

I started using Subsurface on Mac and built out my dive log and set it to backup on my iCloud . Downloaded the IOS app and there is no way to synch to the Mac back up. The app states I need to go to GitHub and download a file to update the app. Huh? Looks like this is an open source app and unless you have some tech experience and be willing to side load apps on your phone. After doing this I have not found a way to get the MacOs logs and the App logs to synch. Have to delete the log in the phone and the set it up again and select the backup from the desktop version anytime I make a change on the desktop version.
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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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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.