Diviac vs Subsurface
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diviac
Log your scuba dives with this cloud-based digital logbook. It features a marine life database, social sharing, and direct dive computer uploads. Store your dive memories, connect with other divers, and plan your next underwater adventure.
- Cloud-based dive logging
- Direct dive computer upload
- Marine life database
- Social sharing and community
- Dive site research and booking
- Dive buddy validation
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The world's most advanced scuba logbook: beautiful - cloud-based - socially connected - with a full marine life database - offering direct dive computer upload (from desktop/laptop). Log offline during your dive trip, enrich back at home on https://logbook.diviac.com/ - no cables, automatic sync, just perfect! Diviac is also much more than a traditional logbook, it is a journal of your dive history. A place to remember the divers that you meet on trips, a place to keep track of the amazing marine life that you encounter and a place to record your impressions… in short, a place to store the memories that you want to keep from your dives. Key features Fresh Beautiful design, intuitive interface and amazing user experience. Your dives never had such an elegant place to be logged. Cloud All your logs are accessible 24/7 anywhere in the world, web and mobile. Even when there is no connectivity you can still access your dives and your dive certifications. Social Post your dives on Facebook or Google+, share your experience with your friends and get recommendations on where to go next. Community Being a diver means also being part of its global community. Befriend divers, follow dive sites or companies, post news updates, follow activity feeds and stay in the loop. Inspiring Diviac logbook includes a full marine database with 14,000 species, complete with photos and biology info. All you need to find out what species you spotted in your last dive. Friendly Allows dive buddies to validate and copy each other’s logs and photos. You can also ask your dive instructor to send you a template for the dive or to validate your dive. Compatible What’s easier than directly upload your dive computer data to your logbook? Just download the Mac and PC software to upload all your dives, from the dive computer to the cloud. Analytical Equipped with dashboards and custom reporting tools to get to know everything about your diving life. Scuba travel Research and book your next scuba vacation from 10,000 dive operators in the most exotic location around the world. Hundreds of user reviews, ratings, and advanced search tools will make it a breeze to go on holiday.
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.
Screenshots
Verdict
The clearest difference is review sentiment: Subsurface at 63% against Diviac's 19%. Subsurface also leads on rating (4.5 vs 1.8). Diviac's advantage is iOS requirement (6.0 vs 17). On price, ratings volume, update cadence and ads 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 1.8. Both are backed by a comparable volume of ratings — 18 and 48 respectively. Written reviews point the same way: 19% of Diviac's written reviews are positive against 63% of Subsurface's.
Diviac ships an update every 5 weeks, Subsurface every 2 months. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.
| Parameter | Diviac | Subsurface |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (18 ratings) | 4.5 (48 ratings) — better |
| Positive reviews | 19.4% of reviews | 63.3% of reviews — better |
| Number of ratings | 18 | 48 — better |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 17 |
| Further details — not scored | ||
| Size | 26 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | PADI Travel AG | Dirk Hohndel |
Customer experience
Diviac
Subsurface
In-app purchases
Diviac
No in-app purchases
Subsurface
No in-app purchases








