# Shearwater Cloud vs nitroxCalc

The clearest difference is update cadence: Shearwater Cloud at every 5 weeks against nitroxCalc's every 18 months. nitroxCalc's advantage is iOS requirement (9.0 vs 13.0). On price, ads, 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.

Shearwater Cloud ships an update every 5 weeks, nitroxCalc every 18 months. The most recent releases landed on September 2, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Shearwater Cloud | nitroxCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (104 ratings)](https://appshunter.io/ios/app/shearwater-cloud/id1185701505/reviews)** | — |
| Number of ratings | **104** | — |
| Positive reviews | 25.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 18 months |
| Monetization | Free | — |
| Size | 333 MB | 5 MB |
| Requires iOS | 13.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shearwater Research](https://appshunter.io/developer/1164234361) | [CAP-REL](https://appshunter.io/developer/1405536766) |

## 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- 🎨 Outdated, unattractive user interface design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


### nitroxCalc

[App page](https://appshunter.io/ios/app/nitroxcalc/id1408060704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shearwater Cloud free?

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

### Is nitroxCalc free?

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

### Do Shearwater Cloud or nitroxCalc have ads?

Neither Shearwater Cloud nor nitroxCalc shows ads.

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

Shearwater Cloud ships an update every 5 weeks, and nitroxCalc every 18 months. Most recently, Shearwater Cloud was updated on September 2, 2026 and nitroxCalc on September 8, 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.*