# Subsurface vs Digidive

The clearest difference is review sentiment: Digidive at 100% against Subsurface's 63%. Digidive also leads on rating (5.0 vs 4.5) and update cadence (every 2 weeks vs every 2 months). Subsurface's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Digidive sells 2 in-app purchases, starting at $1.99 per month. Subsurface asks for nothing beyond the download.

Digidive holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 48 and 33 respectively. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 100% of Digidive's.

Subsurface ships an update every 2 months, Digidive every 2 weeks. The most recent releases landed on September 27, 2026 and June 26, 2026 respectively.

## The numbers

| Metric | Subsurface | Digidive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews) | **[5.0 (33 ratings)](https://appshunter.io/ios/app/digidive/id6468929602/reviews)** |
| Number of ratings | **48** | 33 |
| Positive reviews | 63.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 52 MB | 77 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Digidive LLC](https://appshunter.io/developer/1710947741) |

## 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


### Digidive

[App page](https://appshunter.io/ios/app/digidive/id6468929602)

Log your underwater adventures with this comprehensive dive tracker. Record dive sites, marine life, and conditions, and plan future explorations with a wish list. Offers a free trial with optional Pro subscriptions for full history and photo uploads.

**Highlights:** Log dive sites, conditions, and marine life, Track dive history, Wish list for dream destinations, Upload dive photos and certifications, Free trial available, Pro subscription for full access

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access - Monthly | $1.99 | per month |
| Full Access - Annual | $9.99 | per year |


## Frequently asked questions

### Is Subsurface free?

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

### Is Digidive free?

Digidive is free to download, with in-app purchases available.

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

Digidive is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while Digidive averages 5.0 from 33 ratings.

### Do Subsurface or Digidive have ads?

Neither Subsurface nor Digidive shows ads.

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

Subsurface ships an update every 2 months, and Digidive every 2 weeks. Most recently, Subsurface was updated on September 27, 2026 and Digidive on June 26, 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.*