Ethercache vs Doyle Guides
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ethercache
Create and hide digital messages at real-world locations for others to discover. This app offers a modern take on scavenger hunts and geocaching, allowing global participation.
- Create digital messages at specific locations
- Modern twist on geocaching
- Global scavenger hunt functionality
- User-generated content
- Location-based message embedding
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Ethercache is the world's first digital scavenger hunt, a mobile app that allows you to store hidden messages around the planet, a modern twist on geocaching. Just give it a try! We think you'll love it. How to use Ethercache: 1) Go to the place you wish to hide your message. 2) Open Ethercache on your iOS device. 3) Touch the "+" button and wait for the purple pin to drop. 4) Give your new ethercache a name, and a message by touching the info button. 5) Nudge your ethercache a little - but not too far! 6) "Embed" your ethercache. 7) Your ethercache is now available at that location for anyone to find. 8) Have fun! FAQ: Q: Just what is Ethercache good for? A: Ethercache is fun! You can use it for a scavenger hunt, to supplement a geocaching trip, or just to have fun with your friends and family. Q: Who uses this thing??? A: People all around the world! In the country and in the city, there are user-generated ethercaches in dozens of countries across 6 continents (we're still waiting for someone to leave an ethercache at the south pole!). Q: Will Ethercache steal all my personal data? A: No! What you choose to leave behind will be available to anybody to find, but apart from that, we don't use or store any personally identifiable information. And none of the messages you enter are stored on your device.
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 rating: Ethercache at 5.0 against Doyle Guides's 4.3. Ethercache also leads on in-app purchases (none vs 18) and iOS requirement (14.7 vs 16.6). Doyle Guides's advantage is update cadence (monthly vs every 28 months) and ratings volume (50 vs 1). On price, 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 18 in-app purchases, starting at $9.99 per month. Ethercache asks for nothing beyond the download.
Ethercache holds the better App Store score, 5.0 against 4.3. 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 complicate that: 50% of Ethercache's written reviews are positive against 60% of Doyle Guides's, so the app with the better star average is not the one people write more warmly about.
Ethercache ships an update every 28 months, Doyle Guides monthly. The most recent releases landed on June 5, 2026 and September 24, 2026 respectively.
| Parameter | Ethercache | Doyle Guides |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.3 (50 ratings) |
| Positive reviews | 50.0% of reviews | 60.0% of reviews — better |
| Number of ratings | 1 | 50 — better |
| Update frequency | Every 28 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.7 — better | 16.6 |
| Further details — not scored | ||
| Size | 1 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | PermuSoft Corporation | Chris Doyle Publishing Limited |
Customer experience
Ethercache
Doyle Guides
In-app purchases
Ethercache
No in-app purchases
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
