# Sailboat GPS Track Data Logger vs Doyle Guides

The clearest difference is review sentiment: Doyle Guides at 60% against Sailboat GPS Track Data Logger's 0%. Doyle Guides also leads on price (Free vs $4.99) and rating (4.3 vs 2.0). Sailboat GPS Track Data Logger's advantage is iOS requirement (12.0 vs 16.6). On ads, in-app purchases, monetization model and device support there is nothing between them.

Doyle Guides is free to download; Sailboat GPS Track Data Logger costs $4.99 up front. Sailboat GPS Track Data Logger sells 10 one-off in-app purchases 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 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Sailboat GPS Track Data Logger's written reviews are positive against 60% of Doyle Guides's.

Sailboat GPS Track Data Logger ships an update every 38 months, Doyle Guides monthly. Both last shipped on September 24, 2026.

## The numbers

| Metric | Sailboat GPS Track Data Logger | Doyle Guides |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/sailboat-gps-track-data-logger/id656343591/reviews) | **[4.3 (50 ratings)](https://appshunter.io/ios/app/doyle-guides/id6466621237/reviews)** |
| Number of ratings | 2 | **50** |
| Positive reviews | 0.0% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 41 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ndili Technologies, Inc.](https://appshunter.io/developer/331426521) | [Chris Doyle Publishing Limited](https://appshunter.io/developer/1707528206) |

## What reviewers say

### Sailboat GPS Track Data Logger

[App page](https://appshunter.io/ios/app/sailboat-gps-track-data-logger/id656343591)

Record your sailing trips with detailed GPS data, including direction, speed, and time. Share your journey in real-time with friends and family, and create a dynamic blog with geo-tagged notes, photos, and videos. Review your entire trip later with precise track information.

**Highlights:** Real-time GPS track logging, Direction, speed, and time recording, Remote trip following, Geo-tagged notes, photos, and videos, Dynamic trip blogging, Post-trip review

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,000 MB Storage Capacity For 1 Month | $0.99 | one-time |
| 1,000 MB Storage Capacity For 3 Months | $2.99 | one-time |
| Highest Resolution and Accuracy Tracking | $7.99 | one-time |
| 1,000 MB Storage Capacity For 12 Months | $11.99 | one-time |
| 5,000 MB Storage Capacity For 6 Months | $29.99 | one-time |
| 10,000 MB Storage Capacity For 6 Months | $59.99 | one-time |
| 5,000 MB Storage Capacity For 12 Months | $59.99 | one-time |
| 10,000 MB Storage Capacity For 12 Months | $119.99 | one-time |
| 25,000 MB Storage Capacity For 6 Months | $149.99 | one-time |
| 25,000 MB Storage Capacity For 12 Months | $299.99 | one-time |


### Doyle Guides

[App page](https://appshunter.io/ios/app/doyle-guides/id6466621237)

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.

**Highlights:** Comprehensive sailing guides, Nautical charts and navigation, Interactive satellite map, 3000+ points of interest database, User comments and corrections, Island-specific content bundles

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trinidad & Tobago - 1 month | $9.99 | per month |
| Martinique Sailing Guide | $19.99 | per month |
| St. Lucia Sailing Guide | $19.99 | per month |
| St. Vincent Sailing Guide | $19.99 | per month |
| Grenada Package - 1 month | $19.99 | per month |
| Trinidad Tobago Sailing Guide | $19.99 | per year |
| Martinique Sailing Guide | $24.99 | per year |
| St. Lucia Sailing Guide | $24.99 | per year |
| St. Vincent Sailing Guide | $24.99 | per year |
| Grenada Package - 12 months | $24.99 | per year |
| Southern Leeward Sailing Guide | $24.99 | per month |
| Northern Leeward Sailing Guide | $24.99 | per month |
| Windward Islands Guide | $29.99 | per month |
| BVI Cruising Guide | $29.99 | per year |
| Windward Islands Guide | $39.99 | per year |
| Virgin Islands Cruising Guide | $39.99 | per year |
| Leeward Islands Sailing Guide | $39.99 | per month |
| Leeward Islands Sailing Guide | $59.99 | per year |


## Frequently asked questions

### Is Sailboat GPS Track Data Logger free?

Sailboat GPS Track Data Logger costs $4.99, and also offers in-app purchases.

### Is Doyle Guides free?

Doyle Guides is free to download, with in-app purchases available.

### Which has better reviews, Sailboat GPS Track Data Logger or Doyle Guides?

Doyle Guides is rated higher. Sailboat GPS Track Data Logger averages 2.0 out of 5 from 2 ratings, while Doyle Guides averages 4.3 from 50 ratings.

### Do Sailboat GPS Track Data Logger or Doyle Guides have ads?

Neither Sailboat GPS Track Data Logger nor Doyle Guides shows ads.

### Which is updated more often, Sailboat GPS Track Data Logger or Doyle Guides?

Sailboat GPS Track Data Logger ships an update every 38 months, and Doyle Guides monthly. Most recently, Sailboat GPS Track Data Logger was updated on September 24, 2026 and Doyle Guides on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*