# Dive Plan vs Subsurface

The clearest difference is rating: Subsurface at 4.5 against Dive Plan's 1.8. Subsurface also leads on in-app purchases (none vs 4) and review sentiment (63% vs 38%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Dive Plan sells 4 in-app purchases, starting at $2.99 per month. Subsurface asks for nothing beyond the download.

Subsurface holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: Subsurface has 48 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 38% of Dive Plan's written reviews are positive against 63% of Subsurface's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Dive Plan | Subsurface |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (8 ratings)](https://appshunter.io/ios/app/dive-plan/id496279549/reviews) | **[4.5 (48 ratings)](https://appshunter.io/ios/app/subsurface-mobile/id1093217161/reviews)** |
| Number of ratings | 8 | **48** |
| Positive reviews | 37.9% of reviews | **63.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | **Free** |
| Size | 2 MB | 52 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AXIS Productions](https://appshunter.io/developer/472646203) | [Dirk Hohndel](https://appshunter.io/developer/1093217160) |

## What reviewers say

### Dive Plan

[App page](https://appshunter.io/ios/app/dive-plan/id496279549)

This app serves as a digital decompression table and logbook for divers. It helps calculate non-stop dive times and log dives, compatible with major diving organizations' tables. It supports both air and enriched air (nitrox) tanks.

**Highlights:** Digital decompression tables, Dive logbook, Compatibility with major diving organizations, Supports air and nitrox tanks, Practice for dive certification exams, General dive planning guide

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dive Plan Pro - Monthly | $2.99 | per month |
| Dive Plan Pro - Annual | $17.99 | per year |
| Nitrox EANX Mode | $2.99 | one-time |
| Dive Plan Pro Lifetime | $69.99 | one-time |


### 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


## Frequently asked questions

### Is Dive Plan free?

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

### Is Subsurface free?

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

### Which has better reviews, Dive Plan or Subsurface?

Subsurface is rated higher. Dive Plan averages 1.8 out of 5 from 8 ratings, while Subsurface averages 4.5 from 48 ratings.

### Do Dive Plan or Subsurface have ads?

Neither Dive Plan nor Subsurface shows ads.

### Which is updated more often, Dive Plan or Subsurface?

Dive Plan ships an update every 2 months, and Subsurface every 2 months. Most recently, Dive Plan was updated on September 24, 2026 and Subsurface on September 18, 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.*