# Subsurface vs Dyvo

The clearest difference is review sentiment: Dyvo at 100% against Subsurface's 63%. Dyvo also leads on rating (4.9 vs 4.5) and update cadence (weekly vs every 2 months). Subsurface's advantage is ratings volume (48 vs 11). 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.

Dyvo holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 48 and 11 respectively. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 100% of Dyvo's.

Subsurface ships an update every 2 months, Dyvo weekly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Subsurface | Dyvo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews) | **[4.9 (11 ratings)](https://appshunter.io/ios/app/dyvo-scuba-dive-log/id6786026473/reviews)** |
| Number of ratings | **48** | 11 |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | Free |
| Size | 52 MB | 24 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Grant Swingler](https://appshunter.io/developer/1852334705) |

## 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


### Dyvo

[App page](https://appshunter.io/ios/app/dyvo-scuba-dive-log/id6786026473)

This app visualizes your dive history on an interactive globe, allowing you to log detailed dive information, track personal statistics, and privately share experiences with dive buddies. It offers offline access and Siri integration for convenience.

**Highlights:** Global dive site visualization, Detailed dive logging, Personal dive statistics dashboard, Private dive buddy sharing, Offline access to shared dives, Siri and Shortcuts integration

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Subsurface free?

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

### Is Dyvo free?

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

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

Dyvo is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while Dyvo averages 4.9 from 11 ratings.

### Do Subsurface or Dyvo have ads?

Neither Subsurface nor Dyvo shows ads.

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

Subsurface ships an update every 2 months, and Dyvo weekly. Most recently, Subsurface was updated on October 22, 2026 and Dyvo on October 24, 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.*