# Subsurface vs DiverLog+

The clearest difference is review sentiment: Subsurface at 63% against DiverLog+'s 19%. Subsurface also leads on rating (4.5 vs 2.5) and monetization model (free vs freemium). DiverLog+'s advantage is iOS requirement (9.0 vs 17). On price, ratings volume, update cadence and ads 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 2.5. Both are backed by a comparable volume of ratings — 48 and 111 respectively. Written reviews point the same way: 63% of Subsurface's written reviews are positive against 19% of DiverLog+'s.

Subsurface ships an update every 2 months, DiverLog+ every 5 weeks. The most recent releases landed on September 18, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | Subsurface | DiverLog+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews)** | [2.5 (111 ratings)](https://appshunter.io/ios/app/diverlog-plus/id1294460120/reviews) |
| Number of ratings | 48 | **111** |
| Positive reviews | **63.3% of reviews** | 19.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Freemium |
| Size | 52 MB | 89 MB |
| Requires iOS | 17 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Head Watersports S.p.A.](https://appshunter.io/developer/1193522423) |

## 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


### DiverLog+

[App page](https://appshunter.io/ios/app/diverlog-plus/id1294460120)

This app allows divers to digitally log and manage all aspects of their underwater adventures. Track dive details, gear, buddies, and locations. Sync data with dive computers and cloud backups, and share your experiences.

**Highlights:** Manage dive details, Search dives by location/buddy, Manage dive spots and gear, Track personal medical/certification info, Add photos and videos, Sync with desktop/cloud, Download/upload dive computer data

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy Bluetooth sync with dive computers
- 📸 Photo and video storage integration
- 📝 Comprehensive dive logging features
- ⚙️ Convenient app-based computer settings
- 🤝 Buddy and gear management

**What reviewers complain about**

- 🐛 Frequent app crashes
- 💾 Data loss on phone replacement
- 🔗 No cloud backup by default
- ❌ No cross-device synchronization
- 🔐 Unreliable account login system

**Reported bugs**

- App crashes when downloading/syncing dives
- Crashes during firmware updates
- Crashes when accessing settings or verification
- All dive data lost after app reinstall
- Data loss when switching phones

**Requested features**

- Cloud backup and sync across devices
- iPad-optimized version with landscape mode
- Cumulative dive time and average RMV statistics
- Average depth per dive display
- Merge/combine multiple dives into one


## Frequently asked questions

### Is Subsurface free?

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

### Is DiverLog+ free?

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

### Which has better reviews, Subsurface or DiverLog+?

Subsurface is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while DiverLog+ averages 2.5 from 111 ratings.

### Do Subsurface or DiverLog+ have ads?

Neither Subsurface nor DiverLog+ shows ads.

### Which is updated more often, Subsurface or DiverLog+?

Subsurface ships an update every 2 months, and DiverLog+ every 5 weeks. Most recently, Subsurface was updated on September 18, 2026 and DiverLog+ on September 4, 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.*