# Shearwater Cloud vs Abysner

The clearest difference is review sentiment: Abysner at 100% against Shearwater Cloud's 26%. Abysner also leads on rating (5.0 vs 2.6). Shearwater Cloud's advantage is price (Free vs $2.99) and ratings volume (104 vs 2). On update cadence, ads, in-app purchases and device support there is nothing between them.

Shearwater Cloud is free to download; Abysner costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Abysner holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: Shearwater Cloud has 104 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 26% of Shearwater Cloud's written reviews are positive against 100% of Abysner's.

Shearwater Cloud ships an update every 5 weeks, Abysner every 2 months. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Shearwater Cloud | Abysner |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [2.6 (104 ratings)](https://appshunter.io/ios/app/shearwater-cloud/id1185701505/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/abysner/id6636477320/reviews)** |
| Number of ratings | **104** | 2 |
| Positive reviews | 25.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | **Free** | Paid |
| Size | 333 MB | 42 MB |
| Requires iOS | **13.0** | 15.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shearwater Research](https://appshunter.io/developer/1164234361) | [Roelof Rene Smit](https://appshunter.io/developer/1762786000) |

## 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


### Abysner

[App page](https://appshunter.io/ios/app/abysner/id6636477320)

This app is an open-source dive planning tool designed for simplicity and ease of use. It supports various gas mixes and decompression models, allowing for accurate planning of technical and recreational dives. Its intuitive interface makes it suitable for use even in challenging conditions.

**Highlights:** Buhlmann ZHL-16 A, B, C models, Multi-gas support (Air, Nitrox, Trimix, etc.), OTU and CNS tracking, Customizable environmental settings, Intuitive gas picker, Automatic contingency plans, Multi-level dive planning

**In-app purchases:** none


## Frequently asked questions

### Is Shearwater Cloud free?

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

### Is Abysner free?

Abysner costs $2.99, with no in-app purchases.

### Which has better reviews, Shearwater Cloud or Abysner?

Abysner is rated higher. Shearwater Cloud averages 2.6 out of 5 from 104 ratings, while Abysner averages 5.0 from 2 ratings.

### Do Shearwater Cloud or Abysner have ads?

Neither Shearwater Cloud nor Abysner shows ads.

### Which is updated more often, Shearwater Cloud or Abysner?

Shearwater Cloud ships an update every 5 weeks, and Abysner every 2 months. Most recently, Shearwater Cloud was updated on October 13, 2026 and Abysner on October 5, 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.*