# Subsurface vs Divemates

The clearest difference is rating: Divemates at 5.0 against Subsurface's 4.5. Divemates also leads on review sentiment (100% vs 63%) and update cadence (daily vs every 2 months). Subsurface's advantage is ratings volume (48 vs 2). 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.

Divemates holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 100% of Divemates's.

Subsurface ships an update every 2 months, Divemates daily. The most recent releases landed on October 22, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Subsurface | Divemates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/divemates-scuba-dive-log/id6784760495/reviews)** |
| Number of ratings | **48** | 2 |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | Free |
| Size | 52 MB | 40 MB |
| Requires iOS | 17 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Divemates LLC](https://appshunter.io/developer/6784760497) |

## What reviewers say

### 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


### Divemates

[App page](https://appshunter.io/ios/app/divemates-scuba-dive-log/id6784760495)

Log your scuba dives, track marine life sightings, and discover dive sites worldwide. Connect with dive buddies and access your dive history, even offline. Your complete dive life in one app.

**Highlights:** Offline dive logging, Marine life catalog, Dive site discovery, Buddy connection, Dive history import, Digital dive card

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Subsurface free?

Subsurface is free to download, with no in-app purchases.

### Is Divemates free?

Divemates is free to download, with no in-app purchases.

### Which has better reviews, Subsurface or Divemates?

Divemates is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while Divemates averages 5.0 from 2 ratings.

### Do Subsurface or Divemates have ads?

Neither Subsurface nor Divemates shows ads.

### Which is updated more often, Subsurface or Divemates?

Subsurface ships an update every 2 months, and Divemates daily. Most recently, Subsurface was updated on October 22, 2026 and Divemates on October 8, 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.*