PSS myCard vs Subsurface
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PSS myCard
Manage and display your certifications and qualifications digitally. Access your data offline and share or print it easily. Automatic updates ensure your information is always current.
- Automatic data updating
- Secure QR code display
- Offline data access
- Save to Photo Gallery
- Send and print options
- Digital patent verification
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PSS My card main functions: Automatic data updating Secure QR Offline data Save in Photo Gallery Send and print with a click Thanks to the "PSS-Sync", Mycard update and automatically synchronize your data (patents and qualifications) when there's connectivity and will save them on your phone. You'll use the App Mycard and show your patents even if you are abroad or without internet connectivity. Thanks to the certifications you send just a single click for check-in at the diving center. The verification of the digital patent, ensures the best certificate of qualification and can be done from any PC, smartphone or table
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 PSS myCard's 0%. Subsurface also leads on rating (4.5 vs 1.0) and ratings volume (48 vs 1). PSS myCard's advantage is iOS requirement (9.0 vs 17). On price, ads, 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 1.0. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of PSS myCard's written reviews are positive against 63% of Subsurface's.
PSS myCard ships an update every 8 months, Subsurface every 2 months. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.
| Parameter | PSS myCard | Subsurface |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.5 (48 ratings) — better |
| Positive reviews | 0.0% of reviews | 63.3% of reviews — better |
| Number of ratings | 1 | 48 — better |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17 |
| Further details — not scored | ||
| Size | 8 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Margherita Aucelli | Dirk Hohndel |
Customer experience
PSS myCard
Subsurface
In-app purchases
PSS myCard
No in-app purchases
Subsurface
No in-app purchases
Questions
Is PSS myCard free?
Is Subsurface free?
Which has better reviews, PSS myCard or Subsurface?
Do PSS myCard or Subsurface have ads?
Which is updated more often, PSS myCard or Subsurface?
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