# PSS myCard vs Subsurface

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.

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.

## The numbers

| Metric | PSS myCard | Subsurface |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/pss-mycard/id1077888722/reviews) | **[4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews)** |
| Number of ratings | 1 | **48** |
| Positive reviews | 0.0% of reviews | **63.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 8 MB | 52 MB |
| Requires iOS | **9.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Margherita Aucelli](https://appshunter.io/developer/904666795) | [Dirk Hohndel](https://appshunter.io/developer/1093217160) |

## What reviewers say

### PSS myCard

[App page](https://appshunter.io/ios/app/pss-mycard/id1077888722)

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.

**Highlights:** Automatic data updating, Secure QR code display, Offline data access, Save to Photo Gallery, Send and print options, Digital patent verification

**Features:** macOS Compatibility

**In-app purchases:** none


### Subsurface

[App page](https://appshunter.io/ios/app/subsurface-mobile/id1093217161)

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

**In-app purchases:** none


## Frequently asked questions

### Is PSS myCard free?

PSS myCard 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, PSS myCard or Subsurface?

Subsurface is rated higher. PSS myCard averages 1.0 out of 5 from 1 ratings, while Subsurface averages 4.5 from 48 ratings.

### Do PSS myCard or Subsurface have ads?

Neither PSS myCard nor Subsurface shows ads.

### Which is updated more often, PSS myCard or Subsurface?

PSS myCard ships an update every 8 months, and Subsurface every 2 months. Most recently, PSS myCard was updated on October 11, 2026 and Subsurface on October 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*