# Shearwater Cloud vs Mares App

The clearest difference is rating: Mares App at 4.5 against Shearwater Cloud's 2.6. Mares App also leads on review sentiment (48% vs 26%). Shearwater Cloud's advantage is in-app purchases (none vs 8) and iOS requirement (13.0 vs 16.6). On price, ratings volume, update cadence and ads there is nothing between them.

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

Mares App holds the better App Store score, 4.5 against 2.6. Both are backed by a comparable volume of ratings — 104 and 189 respectively. Written reviews point the same way: 26% of Shearwater Cloud's written reviews are positive against 48% of Mares App's.

Shearwater Cloud ships an update every 5 weeks, Mares App every 4 weeks. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Shearwater Cloud | Mares App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (104 ratings)](https://appshunter.io/ios/app/shearwater-cloud/id1185701505/reviews) | **[4.5 (189 ratings)](https://appshunter.io/ios/app/mares-app/id1625641063/reviews)** |
| Number of ratings | 104 | **189** |
| Positive reviews | 25.8% of reviews | **48.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 333 MB | 203 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shearwater Research](https://appshunter.io/developer/1164234361) | [Head Watersports S.p.A.](https://appshunter.io/developer/1193522423) |

## What reviewers say

### Shearwater Cloud

[App page](https://appshunter.io/ios/app/shearwater-cloud/id1185701505)

Connect your mobile device to your dive computer to download, manage, and analyze dive logs. Update firmware and utilize cloud storage for accessible and secure dive data across multiple devices.

**Highlights:** Download dive logs via Bluetooth LE, Analyze depth, decompression, and temperature, Cloud storage for dive logs, Firmware updates for dive computers, Cross-device accessibility

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🔄 Reliable dive data synchronization with computers
- ☁️ Cloud storage functionality for accessing dives across devices
- 📊 Clear display of dive statistics and information
- 🔌 Easy Bluetooth connectivity (when working)
- ⚡ Functional core logging features

**What reviewers complain about**

- 🎨 Outdated, unattractive user interface design
- 📱 Poor iPad optimization and landscape mode issues
- 🐢 Extremely slow performance and lag
- 🔗 Frequent Bluetooth connectivity failures
- 💥 App crashes on launch and during use

**Reported bugs**

- App crashes on startup with latest iOS versions
- Bluetooth connection causes app to freeze or crash
- Dives fail to download or sync completely
- Dive numbers display incorrectly compared to computer
- Data loss when updating app or firmware

**Requested features**

- Modern, native-looking user interface redesign
- GPS/geolocation integration for dive sites
- Ability to manually add or import dives
- Photo attachment capability for dives
- Dive planner functionality


### 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 Shearwater Cloud free?

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

### Is Mares App free?

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

### Which has better reviews, Shearwater Cloud or Mares App?

Mares App is rated higher. Shearwater Cloud averages 2.6 out of 5 from 104 ratings, while Mares App averages 4.5 from 189 ratings.

### Do Shearwater Cloud or Mares App have ads?

Neither Shearwater Cloud nor Mares App shows ads.

### Which is updated more often, Shearwater Cloud or Mares App?

Shearwater Cloud ships an update every 5 weeks, and Mares App every 4 weeks. Most recently, Shearwater Cloud was updated on October 21, 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.*