Subsurface vs Deepblu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Subsurface
This application allows divers to manage their dive logs on their mobile devices. It supports editing dive data and downloading new information from compatible dive computers. Optional cloud synchronization is available for seamless data transfer with desktop versions.
- Mobile dive log management
- Edit dive data
- Download from Bluetooth LE dive computers
- Optional cloud synchronization
- Open-source and free
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Subsurface-mobile is an iOS dive log application based on Subsurface, the best free open source dive log application available on Windows, Mac and Linux. Subsurface-mobile allows you to access your dive log on your tablet or phone, edit the data and even download new dive information from many Bluetooth LE enabled dive computers. Using a free Subsurface Cloud Storage account you can synchronize your dive data with the Subsurface desktop application (while significantly increasing the usefulness, the cloud account is not required to use Subsurface-mobile). To get support from the developers, please use the in-app menu entry "Ask for support" Please check out the Subsurface-mobile user manual: https://subsurface-divelog.org/documentation/subsurface-mobile-v3-user-manual (also available from within the app) Subsurface-mobile is free and open source. No ads, no commercial anything. And it comes with free cloud storage (if you decide to use that - it's optional). Your data aren't used for anything, nothing gets monetized.
Deepblu
Log your underwater adventures, enrich them with media, and connect with a global diving community. Automatically sync dive data from compatible computers and discover popular dive destinations worldwide. Build your diver profile and get your logs certified by instructors.
- Automatic dive log synchronization
- Add photos and videos to logs
- Discover and plan dive destinations
- Build diver identity and profile
- Instructor certification of logs
- Compatible with many dive computers
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Your incredible dive journeys start with Deepblu. THE MOST INTUITIVE DIVE LOG APP ● Enrich your dive log with underwater photos and videos to share with the global diving community ● Create dive logs automatically by synchronizing your dive computer via Bluetooth ● Compatible with most dive computers on the market (see all compatible dive computers below) ● Have your instructor certify your Deepblu dive log in-app ● Build your diver identity EXPLORE POPULAR DIVE DESTINATIONS AROUND THE WORLD ● Discover dive sites, plan dive travel based on user reviews and media ● Cancun – Explore MUSA, C-55, and unique sea life ● Tulum – Dive in Cenote Dos Ojos and more underwater caves ● Bali – Dive with mantas and discover unique reefs COMPATIBLE DIVE COMPUTERS Deepblu COSMIQ+, SCUBAPRO Aladin Sport, Galileo 2, Aladin H Matrix, TUSA DC Solar Link IQ1204, and Shearwater Petrel 2, Perdix, Perdix AI, Nerd 2. Deepblu is also compatible with Subsurface, which supports nearly 200 other dive computers from popular brands such as AquaLung, Cressi, Mares, Oceanic, SCUBAPRO, Shearwater, Sherwood, Suunto, Uwatec and many more. *The Deepblu app is recognized as the official digital training log of international dive agencies such as IDA, ITDA & DIWA, where instructors can digitally sign their students logs directly on the app, counting towards certification. Dive on.
Screenshots
Verdict
The clearest difference is rating: Subsurface at 4.5 against Deepblu's 2.9. Subsurface also leads on review sentiment (63% vs 36%). Deepblu's advantage is iOS requirement (9.0 vs 17). On price, ratings volume, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Subsurface holds the better App Store score, 4.5 against 2.9. Both are backed by a comparable volume of ratings — 48 and 39 respectively. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 36% of Deepblu's.
| Parameter | Subsurface | Deepblu |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (48 ratings) — better | 2.9 (39 ratings) |
| Positive reviews | 63.3% of reviews — better | 36.4% of reviews |
| Number of ratings | 48 — better | 39 |
| Update frequency | Every 2 months | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17 | 9.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 148 MB |
| Age rating | 4+ | 4+ |
| Developer | Dirk Hohndel | Blaris ApS |
Customer experience
Subsurface
Deepblu
In-app purchases
Subsurface
No in-app purchases
Deepblu
No in-app purchases









