WMM PAL vs Doyle Guides
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WMM PAL
This app accurately calculates magnetic declination worldwide using the World Magnetic Model from NOAA. It has been updated with modern Swift and SwiftUI tools for improved performance and features.
- Accurate magnetic declination calculation
- Global coverage
- Uses World Magnetic Model (NOAA)
- Updated with Swift and SwiftUI
- Built-in description
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This App uses the World Magnetic Model developed by NOAA to determine the magnetic declination very accurately at any latitude, longitude and elevation of your choice, anywhere on the planet. This App was originally introduced using objective-C tools and has now been upgraded with new features to Swift and SwiftUI tools. There is a full built-in description in the App.
Doyle Guides
Access comprehensive sailing guides for the southern Caribbean, featuring nautical charts, regulations, services, and points of interest. The app offers an interactive map with user-generated comments and corrections, all free to use. In-app purchases provide access to detailed guide book content.
- Comprehensive sailing guides
- Nautical charts and navigation
- Interactive satellite map
- 3000+ points of interest database
- User comments and corrections
- Island-specific content bundles
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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 price: Doyle Guides at Free against WMM PAL's $2.99. Doyle Guides also leads on rating (4.3 vs 2.0) and update cadence (every 5 weeks vs every 14 months). On ads, in-app purchases, device support and iOS requirement 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
Doyle Guides is free to download; WMM PAL costs $2.99 up front. WMM PAL sells 1 one-off in-app purchase and Doyle Guides sells 18 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Doyle Guides holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: Doyle Guides has 50 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of WMM PAL's written reviews are positive against 60% of Doyle Guides's.
WMM PAL ships an update every 14 months, Doyle Guides every 5 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.
| Parameter | WMM PAL | Doyle Guides |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 2.0 (1 ratings) | 4.3 (50 ratings) — better |
| Positive reviews | 50.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 1 | 50 — better |
| Update frequency | Every 14 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 5 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Digilog Corporation | Chris Doyle Publishing Limited |
Customer experience
WMM PAL
Doyle Guides
In-app purchases
WMM PAL
- MyLocationToken$3.99
Doyle Guides
- Trinidad & Tobago - 1 month3 Days trial$9.991 Month
- Martinique Sailing Guide3 Days trial$19.991 Month
- St. Lucia Sailing Guide3 Days trial$19.991 Month
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- St. Vincent Sailing Guide3 Days trial$19.991 Month
- Grenada Package - 1 month3 Days trial$19.991 Month
- Trinidad Tobago Sailing Guide7 Days trial$19.991 Year
- Martinique Sailing Guide7 Days trial$24.991 Year
- St. Lucia Sailing Guide7 Days trial$24.991 Year
- St. Vincent Sailing Guide7 Days trial$24.991 Year
- Grenada Package - 12 months7 Days trial$24.991 Year
- Southern Leeward Sailing Guide3 Days trial$24.991 Month
- Northern Leeward Sailing Guide3 Days trial$24.991 Month
- Windward Islands Guide3 Days trial$29.991 Month
- BVI Cruising Guide3 Days trial$29.991 Year
- 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
Questions
Is WMM PAL free?
Is Doyle Guides free?
Which has better reviews, WMM PAL or Doyle Guides?
Do WMM PAL or Doyle Guides have ads?
Which is updated more often, WMM PAL or Doyle Guides?
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