Alert Diver vs Shearwater Cloud
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alert Diver
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.
- Dive industry research
- Medical information
- Dive safety guidelines
- Underwater photography
- Dive travel guides
- Marine environmental topics
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Alert Diver magazine, the dive industry’s leading publication, features DAN’s core content of research, education, medical information and dive safety. In addition, Alert Diver showcases underwater photography, dive travel and marine environmental topics. Divers Alert Network (DAN) is a nonprofit, 501(c)(3) dive safety organization. DAN's mission is to help divers in need of emergency medical assistance and to promote dive safety through research, education, products and services. Published quarterly, Alert Diver is a benefit to members of DAN; its companion website, AlertDiver.com, is available to all. If you are a current DAN member (DAN America region), everything offered in this app is included in your membership and free to you!
Shearwater Cloud
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.
- Download dive logs via Bluetooth LE
- Analyze depth, decompression, and temperature
- Cloud storage for dive logs
- Firmware updates for dive computers
- Cross-device accessibility
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Shearwater Cloud links your mobile device to your Shearwater dive computer. It allows you to download and manage your dive logs, update your dive computer firmware, and use cloud storage. Using Bluetooth LE technology, you can quickly and easily download your dive logs to Shearwater Cloud. Once your logs are downloaded, you can analyze your depth, decompression profile, temperature, and much more. The defining feature of Shearwater Cloud is the ability to store your dives via the cloud. Cloud storage provides accessibility to your dives on any mobile device with an internet connection. In addition, dive logs can be recovered should the dive logs be lost on a local storage. Shearwater Cloud is compatible with Tern, Peregrine, Teric, Perdix 2, Perdix AI, Perdix, NERD 2, Petrel 3, and Petrel 2.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Alert Diver | Shearwater Cloud |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | 2.6 (104 ratings) |
| Positive reviews | 25.0% of reviews | 25.8% of reviews — better |
| Number of ratings | 4 | 104 — better |
| Update frequency | Every 6 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 92 MB | 333 MB |
| Age rating | 4+ | 4+ |
| Developer | Divers Alert Network | Shearwater Research |
Customer experience
Alert Diver
Shearwater Cloud
Bugs and requests
Alert Diver
Not enough reviews yet to summarise bugs or requests.
Shearwater Cloud
Reported bugs
18 issues- 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
Show 13 moreShow fewer
- Graph freezes when viewing in landscape mode
- Cloud account requirement blocks app access
- Slow download speeds (8+ minutes per dive)
- Dropdown menus and UI elements unresponsive
- Surface interval and end dive time removed in updates
- Temperature unit conversion failures
- SAC rate calculation errors
- Auto-download toggle cannot be disabled
- Checkboxes for filtering data removed
- iPad version displays iPhone layout only
- German/Italian translation mix-up
- Unable to connect to specific computer models
- Scrolling triggers accidental field selection
Requested features
20 requests- 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
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- Map view of dive locations
- Landscape mode optimization for iPad
- Ability to copy/paste information between dives
- Filter dives by mode (recreational, technical, etc.)
- Average SAC rate statistics across all dives
- Buddy management and sharing features
- Equipment tracking and reuse
- Dive profile zoom capability
- PDF export of dive logs
- Support for more tank configurations
- GFSurf information on graphs
- Smart notifications/SNS integration
- Dive date format customization
- Full-screen graph in landscape orientation
- Selective dive download options
In-app purchases
Alert Diver
No in-app purchases
Shearwater Cloud
No in-app purchases
Questions
Is Alert Diver free?
Is Shearwater Cloud free?
Which has better reviews, Alert Diver or Shearwater Cloud?
Do Alert Diver or Shearwater Cloud have ads?
Which is updated more often, Alert Diver or Shearwater Cloud?
Other comparisons
