Watt And Sea vs Doyle Guides
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Watt And Sea
Monitor your hydrogenerator's performance in real-time. Connect via Bluetooth to view current, voltage, and status. Record and share data logs, and access a knowledge base for troubleshooting.
- Real-time data monitoring (current, voltage, status)
- Bluetooth connectivity
- Data logging and sharing
- Access to knowledge database
- Error status reporting
Read full descriptionHide full description
This app allows you to : * Connect to embedded Bluetooth module of the Watt And Sea hydrogenerator. * Monitor the data in real time (current, voltage, status and errors) * Record datalogs and share them by email to Watt And Sea support * Get access to our online knowledge database to troubleshoot frequent problems.
Doyle Guides
This app offers comprehensive sailing guides for the southern Caribbean, featuring nautical charts, service details, and points of interest. Users can search a large database, view results on an interactive map, and contribute comments or corrections.
- Comprehensive sailing guides
- Nautical charts and navigational info
- 3000+ points of interest database
- Interactive satellite map
- User comments and corrections
- Island-specific content bundles
Read full descriptionHide full description
Doyle Guides produces the southern Caribbean's most comprehensive and up-to-date sailing guides, complete with nautical charts and navigational information, details on regulations, customs and immigration, general and technical yacht services, marinas, restaurants, provisioning, shore-based attractions, and more. The Doyle Guides mobile app allows users to search our comprehensive 3000+ point of interest database with results shown based on distance from the user and displayed on an interactive satellite map where users can leave public comments as well as suggest corrections and new points of interest, all free of charge. Subscriptions to guide book content is available on both long and short term basis, as well as bundled by island.
Screenshots
Verdict
The clearest difference is review sentiment: Watt And Sea at 100% against Doyle Guides's 60%. Watt And Sea also leads on in-app purchases (none vs 10) and iOS requirement (14.0 vs 16.6). On price, update cadence, ads and device support 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. Doyle Guides sells 10 in-app purchases, starting at $19.99 per month. Watt And Sea asks for nothing beyond the download.
Watt And Sea ships an update every 3 weeks, Doyle Guides every 5 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Watt And Sea | Doyle Guides |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (51 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 60.0% of reviews |
| Number of ratings | — | 51 — better |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 11 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthieu Michou | Chris Doyle Publishing Limited |
Customer experience
Watt And Sea
Doyle Guides
In-app purchases
Watt And Sea
No in-app purchases
Doyle Guides
- St. Vincent Sailing Guide3 Days trial$19.991 Month
- Trinidad Tobago Sailing Guide7 Days trial$19.991 Year
- Southern Leeward Sailing Guide3 Days trial$24.991 Month
Show 7 moreShow fewer
- Northern Leeward Sailing Guide3 Days trial$24.991 Month
- Windward Islands Guide3 Days trial$29.991 Month
- The Caribbean Pet - 1 month3 Days trial$29.991 Month
- Windward Islands Guide7 Days trial$39.991 Year
- Virgin Islands Cruising Guide3 Days trial$39.991 Year
- Leeward Islands Sailing Guide3 Days trial$39.991 Month
- Leeward Islands Sailing Guide7 Days trial$59.991 Year
