# Subsurface vs Diveplanner Tec & Rec

The clearest difference is review sentiment: Subsurface at 63% against Diveplanner Tec & Rec's 20%. Subsurface also leads on rating (4.5 vs 3.1) and in-app purchases (none vs 3). Diveplanner Tec & Rec's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 17). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Diveplanner Tec & Rec sells 3 one-off in-app purchases. Subsurface asks for nothing beyond the download.

Subsurface holds the better App Store score, 4.5 against 3.1. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 7, 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 20% of Diveplanner Tec & Rec's.

Subsurface ships an update every 2 months, Diveplanner Tec & Rec every 3 months. The most recent releases landed on September 18, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | Subsurface | Diveplanner Tec & Rec |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews)** | [3.1 (7 ratings)](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833/reviews) |
| Number of ratings | **48** | 7 |
| Positive reviews | **63.3% of reviews** | 20.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free | Free |
| Size | 52 MB | 37 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Dirk Hohndel](https://appshunter.io/developer/1093217160) | [Sensetrails LLC](https://appshunter.io/developer/806088250) |

## 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


### Diveplanner Tec & Rec

[App page](https://appshunter.io/ios/app/diveplanner-tec-and-rec/id1506985833)

Plan technical and recreational scuba dives with detailed gas management, decompression schedules, and contingency planning. This tool helps divers quickly create and share dive plans for various depths and conditions.

**Highlights:** Technical and recreational dive planning, Multi-gas and CCR dive schedules, Bühlmann decompression model (ZH16L-C), Automatic contingency plans, Gas requirement and weight calculation, Dive table generation, Metric and Imperial units

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Two weeks free trial | Free | one-time |
| Tec Basic | $7.99 | one-time |
| Tec Advanced | $19.99 | one-time |


## Frequently asked questions

### Is Subsurface free?

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

### Is Diveplanner Tec & Rec free?

Diveplanner Tec & Rec is free to download, with in-app purchases available.

### Which has better reviews, Subsurface or Diveplanner Tec & Rec?

Subsurface is rated higher. Subsurface averages 4.5 out of 5 from 48 ratings, while Diveplanner Tec & Rec averages 3.1 from 7 ratings.

### Do Subsurface or Diveplanner Tec & Rec have ads?

Neither Subsurface nor Diveplanner Tec & Rec shows ads.

### Which is updated more often, Subsurface or Diveplanner Tec & Rec?

Subsurface ships an update every 2 months, and Diveplanner Tec & Rec every 3 months. Most recently, Subsurface was updated on September 18, 2026 and Diveplanner Tec & Rec on August 19, 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.*