Shearwater Cloud vs Mares App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Mares App
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.
- 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
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APPLE WATCH ULTRA DIVE COMPUTER Transform your Ultra into a dive computer. Record dives directly on your wrist and sync automatically to the Mares App. (In-app purchase required.) DIGITAL LOGBOOK: Log your Scuba, Freediving, Extended Range and Rebreather (SCR/CCR) dives in seconds via Bluetooth. Easily share your dives via QR code. Add new dives with your device’s GPS and download your dives from selected dive computers (1*). DIVE SITES: With the help of the Mares dive site database, you can immediately assign a dive site to your logged dives. You can also add your own private dive sites and share them with your dive buddies using a QR code. You can download your dive data directly from selected Mares dive computers . WILDLIFE: A variety of local wildlife is already stored in the app for individual dive sites. This means you can immediately assign the highlights of your underwater encounters to your logged dives. Your sightings are displayed on your personal world map. DIVE BUDDIES: Easily add your dive buddies via QR code or manually in the app. Share your best dives and most exciting animal encounters with friends using the Mares app. STATISTICS: All your dives and data can be seen at a glance, including your longest or deepest dive, your average dive time and more! DIGITAL EQUIPMENT: Store important dive equipment details, including serial numbers, photos and invoices. Enter maintenance dates and keep track of when your equipment needs to be serviced. NEWS AND VIDEOS: Stay up-to-date with all the latest news and videos from the world of water sports and diving. FIRMWARE: When you connect your dive computer to the app, you will be able to confirm if you have the latest firmware. As soon as it is outdated, you will receive a message regarding the newest firmware to download. TABLES: Here you will find useful information such as decompression tables and emergency scenarios. 1* Currently available for MARES Sirius, Sirius L, Sirius Hunter, Horizon, Genius, Quad CI, Quad 2, Quad Air, Quad, Puck 4, Puck Pro EZ, Puck lite, Puck Pro, Puck Pro Plus, Puck Air 2, Smart, Smart Apnea, Smart Air Terms of Use (EULA) Mares App for Apple Watch Ultra: https://my.divessi.com/published/viewhls/awu_terms_v1/2
Screenshots
Verdict
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.
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. 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.
| Parameter | Shearwater Cloud | Mares App |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (104 ratings) | 4.5 (189 ratings) — better |
| Positive reviews | 25.8% of reviews | 48.1% of reviews — better |
| Number of ratings | 104 | 189 — better |
| Update frequency | Every 5 weeks | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 333 MB | 203 MB |
| Age rating | 4+ | 4+ |
| Developer | Shearwater Research | Head Watersports S.p.A. |
Customer experience
Shearwater Cloud
Mares App
Bugs and 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
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- 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
Mares App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Shearwater Cloud
No in-app purchases
Mares App
- Snorkel Only$2.991 Month
- Full Featured Month (Housing Only)3 Days trial$6.991 Month
- Full Featured Month (Ultra Only)3 Days trial$6.991 Month
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- MARES Fully Featured Monthly3 Days trial$8.991 Month
- Full Featured Yearly (Housing Only)3 Days trial$49.991 Year
- Full Featured Yearly (Ultra Only)3 Days trial$49.991 Year
- MARES Fully Featured Yearly3 Days trial$69.991 Year
- MARES Fully Featured Yearly Family3 Days trial$119.991 Year
Questions
Is Shearwater Cloud free?
Is Mares App free?
Which has better reviews, Shearwater Cloud or Mares App?
Do Shearwater Cloud or Mares App have ads?
Which is updated more often, Shearwater Cloud or Mares App?
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