# Alert Diver vs Shearwater Cloud

The clearest difference is rating: Alert Diver at 4.0 against Shearwater Cloud's 2.6. Alert Diver also leads on iOS requirement (11.0 vs 13.0). Shearwater Cloud's advantage is monetization model (free vs free with in-app purchases) and update cadence (every 5 weeks vs every 6 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Alert Diver holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: Shearwater Cloud has 104 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 25% and 26% positive.

Alert Diver ships an update every 6 months, Shearwater Cloud every 5 weeks. The most recent releases landed on June 9, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Alert Diver | Shearwater Cloud |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/alert-diver/id480608662/reviews)** | [2.6 (104 ratings)](https://appshunter.io/ios/app/shearwater-cloud/id1185701505/reviews) |
| Number of ratings | 4 | **104** |
| Positive reviews | 25.0% of reviews | **25.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 92 MB | 333 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Divers Alert Network](https://appshunter.io/developer/1482122935) | [Shearwater Research](https://appshunter.io/developer/1164234361) |

## What reviewers say

### Alert Diver

[App page](https://appshunter.io/ios/app/alert-diver/id480608662)

Explore dive industry insights, research, and safety information. Discover underwater photography, travel destinations, and marine environmental topics. This app provides valuable content for divers and enthusiasts.

**Highlights:** Dive industry research, Medical information, Dive safety guidelines, Underwater photography, Dive travel guides, Marine environmental topics

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Alert Diver free?

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

### Is Shearwater Cloud free?

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

### Which has better reviews, Alert Diver or Shearwater Cloud?

Alert Diver is rated higher. Alert Diver averages 4.0 out of 5 from 4 ratings, while Shearwater Cloud averages 2.6 from 104 ratings.

### Do Alert Diver or Shearwater Cloud have ads?

Neither Alert Diver nor Shearwater Cloud shows ads.

### Which is updated more often, Alert Diver or Shearwater Cloud?

Alert Diver ships an update every 6 months, and Shearwater Cloud every 5 weeks. Most recently, Alert Diver was updated on June 9, 2026 and Shearwater Cloud on September 2, 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.*