# Poseidon Reef vs Dive Reporter

The clearest difference is ads: Dive Reporter at none against Poseidon Reef's shown. Poseidon Reef's advantage is iOS requirement (12.1 vs 15.1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Poseidon Reef ships an update every 5 weeks, Dive Reporter every 2 months. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Poseidon Reef | Dive Reporter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/poseidon-reef/id1581432645/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Ad-supported | — |
| Size | 58 MB | 63 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Poseidon Diving Systems AB](https://appshunter.io/developer/567839779) | [AGENCIA REGIONAL PARA O DESENVOLVIMENTO DA INVESTIGACAO, TECNOLOGIA E INOVACAO - ASSOCIACAO](https://appshunter.io/developer/1543179793) |

## What reviewers say

### Poseidon Reef

[App page](https://appshunter.io/ios/app/poseidon-reef/id1581432645)

This app helps divers log, plan, and analyze their dives. It offers detailed overviews, customizable dive logs, and advanced planning for various dive types. Connect your dive computer to manage data and firmware.

**Highlights:** Comprehensive dive logging, Detailed dive planning, Support for OC and CCR dives, Unlimited tank support, Decompression model selection, Dive computer connectivity, Cloud backup and firmware updates

**In-app purchases:** none


### Dive Reporter

[App page](https://appshunter.io/ios/app/dive-reporter/id1636665151)

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

**In-app purchases:** none


## Frequently asked questions

### Is Poseidon Reef free?

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

### Is Dive Reporter free?

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

### Do Poseidon Reef or Dive Reporter have ads?

Poseidon Reef shows ads; Dive Reporter does not.

### Which is updated more often, Poseidon Reef or Dive Reporter?

Poseidon Reef ships an update every 5 weeks, and Dive Reporter every 2 months. Most recently, Poseidon Reef was updated on October 16, 2026 and Dive Reporter on October 3, 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.*