# Dune Connect vs Mares App

The clearest difference is review sentiment: Dune Connect at 100% against Mares App's 48%. Dune Connect also leads on in-app purchases (none vs 8) and iOS requirement (14.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Mares App sells 8 in-app purchases, starting at $2.99 per month. Dune Connect asks for nothing beyond the download.

Dune Connect ships an update every 3 weeks, Mares App every 4 weeks. The most recent releases landed on October 9, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Dune Connect | Mares App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (189 ratings)](https://appshunter.io/ios/app/mares-app/id1625641063/reviews)** |
| Number of ratings | — | **189** |
| Positive reviews | **100.0% of reviews** | 48.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 89 MB | 203 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Dune France](https://appshunter.io/developer/1566348355) | [Head Watersports S.p.A.](https://appshunter.io/developer/1193522423) |

## What reviewers say

### Dune Connect

[App page](https://appshunter.io/ios/app/dune-connect/id1566348353)

This app simplifies organizing underwater activities by securely storing diver information like certifications and medical records. It streamlines check-in processes at dive centers with one-time form submissions, reducing paperwork.

**Highlights:** Store certification cards, Save medical certificates, Upload ID documents, One-time form submissions, Record personal diver details, Synchronize diver information

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Mares App

[App page](https://appshunter.io/ios/app/mares-app/id1625641063)

Transform your Apple Watch Ultra into a dive computer, recording dives directly on your wrist. Log scuba, freediving, and technical dives, manage dive sites, and track underwater wildlife sightings. Share your adventures with dive buddies and keep your equipment details organized.

**Highlights:** Apple Watch Ultra dive computer integration, Digital dive logbook, Dive site database and management, Underwater wildlife tracking, Dive buddy sharing, Dive equipment management, Firmware updates

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Snorkel Only | $2.99 | per month |
| Full Featured Month (Housing Only) | $6.99 | per month |
| Full Featured Month (Ultra Only) | $6.99 | per month |
| MARES Fully Featured Monthly | $8.99 | per month |
| Full Featured Yearly (Housing Only) | $49.99 | per year |
| Full Featured Yearly (Ultra Only) | $49.99 | per year |
| MARES Fully Featured Yearly | $69.99 | per year |
| MARES Fully Featured Yearly Family | $119.99 | per year |


## Frequently asked questions

### Is Dune Connect free?

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

### Is Mares App free?

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

### Do Dune Connect or Mares App have ads?

Neither Dune Connect nor Mares App shows ads.

### Which is updated more often, Dune Connect or Mares App?

Dune Connect ships an update every 3 weeks, and Mares App every 4 weeks. Most recently, Dune Connect was updated on October 9, 2026 and Mares App on October 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.*