Comparison

Diviac vs Subsurface

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Cloud-based dive logging
  • Direct dive computer upload
  • Marine life database
  • Social sharing and community
  • Dive site research and booking
  • Dive buddy validation
Features
Read full description

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.

About

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.

Highlights
  • Mobile dive log management
  • Edit dive data
  • Download from Bluetooth LE dive computers
  • Optional cloud synchronization
  • Open-source and free
Read full description

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

Diviac4 screens
Subsurface4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Diviac versus Subsurface: the parameters behind the verdict, then further details
ParameterDiviacSubsurface
PriceFreeFree
Rating1.8 (18 ratings)4.5 (48 ratings) — better
Positive reviews19.4% of reviews63.3% of reviews — better
Number of ratings1848 — better
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS6.0 — better17
Further details — not scored
Size26 MB52 MB
Age rating4+4+
DeveloperPADI Travel AGDirk Hohndel

Customer experience

Diviac

All ratings18 ratings
Positive16.7%
Neutral5.6%
Negative77.8%
Written reviews31 reviews
Positive19.4%
Neutral6.5%
Negative74.2%

Subsurface

All ratings48 ratings
Positive89.6%
Neutral2.1%
Negative8.3%
Written reviews30 reviews
Positive63.3%
Neutral6.7%
Negative30.0%

In-app purchases

None

Diviac

No in-app purchases

None

Subsurface

No in-app purchases

Questions

Is Diviac free?
Diviac is free to download, with no in-app purchases.
Is Subsurface free?
Subsurface is free to download, with no in-app purchases.
Which has better reviews, Diviac or Subsurface?
Subsurface is rated higher. Diviac averages 1.8 out of 5 from 18 ratings, while Subsurface averages 4.5 from 48 ratings.
Do Diviac or Subsurface have ads?
Neither Diviac nor Subsurface shows ads.
Which is updated more often, Diviac or Subsurface?
Diviac ships an update every 5 weeks, and Subsurface every 2 months. Most recently, Diviac was updated on September 21, 2026 and Subsurface on September 18, 2026.

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