GPS Data vs Navigation Marine PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GPS Data
Access detailed location data from your device, including GPS coordinates, elevation, speed, and direction. View information in a clear list format, with options for full-screen displays on iOS for at-a-glance monitoring while moving.
- Current time and update intervals
- Latitude and Longitude coordinates
- Elevation in meters and feet
- Speed in various units (mph, km/h, knots)
- Device and movement direction
- Local air pressure
- Vertical speed
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GPS Data delivers all of the current location information available from your device, including GPS, compass, and barometer data. GPS Data displays the following information, in an easy-to-use list format: • Current time • Time since last update • Accuracy of readings • Latitude & Longitude coordinates (decimal degrees and degrees/minutes/seconds) • Elevation (meters and feet above sea level) • Speed (meters and feet per second, kilometers and miles per hour, and knots) • Device direction (degrees true and degrees magnetic) • Direction of device movement (degrees true) • Local air pressure (hectopascals and inches of mercury) • Vertical speed (meters per second and feet per minute) Additionally, on iOS, any altitude, speed, or direction value can be expanded into a larger, full screen display, useful for monitoring different values when you're on the move.
Navigation Marine PRO
This marine navigation tool provides essential features for sailors, yachts, and boaters. It includes a speedometer, position tracking, waypoint management, distance measurement, and course guidance.
- Speedometer (knots, mph, km/h)
- Course over Ground
- Position tracking
- Waypoint marking and editing
- Distance measurement
- Course to Waypoint
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An helpful navigation marine tool for sailors, yachts and boats. This app contains a set of nautical applications: - Speedometer in knots, mph or km/h, Course over Ground; - Position; - Mark or edit waypoints; - Distance measurement in nautical miles and meters. Also useful for anchoring; - Course to Waypoint. --- We are tied to the ocean. And when we go back to the sea, whether it is to sail or to watch - we are going back from whence we came. John --F. Kennedy-
Screenshots
Verdict
The clearest difference is price: GPS Data at Free against Navigation Marine PRO's $2.99. GPS Data also leads on rating (4.4 vs 2.0) and update cadence (fortnightly vs every 13 months). Navigation Marine PRO's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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
GPS Data is free to download; Navigation Marine PRO costs $2.99 up front. GPS Data sells 1 one-off in-app purchase. Navigation Marine PRO asks for nothing beyond the download.
GPS Data holds the better App Store score, 4.4 against 2.0. That said, the two scores are not equally well evidenced: GPS Data has 458 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 77% of GPS Data's written reviews are positive against 100% of Navigation Marine PRO's, so the app with the better star average is not the one people write more warmly about.
GPS Data ships an update fortnightly, Navigation Marine PRO every 13 months. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.
| Parameter | GPS Data | Navigation Marine PRO |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.4 (458 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 77.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 458 — better | 1 |
| Update frequency | Fortnightly — better | Every 13 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscar Fawkes | Andrea Bisegna |
Customer experience
GPS Data
Navigation Marine PRO
Bugs and requests
GPS Data
Reported bugs
7 issues- App doesn't work on Apple Watch (no data displayed)
- Speed display shows only a dash on Apple Watch 4
- GPS coordinates not displayed on Apple Watch
- Compass doesn't work on Apple Watch
- Latitude/longitude format changes when sending via SMS
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- App crashes or shows no data for some users
- Text and heading overlap making data hard to read
Requested features
14 requests- Satellite lock count display
- Consolidated watch page with speed, course, and altitude together
- Apple Watch compass functionality
- Latitude/longitude display on Apple Watch
- Cardinal direction display on Apple Watch (N, S, E, W)
Show 9 moreShow fewer
- Remember last selected units on Apple Watch
- OSGB format support for UK users
- Location name (town and state) display
- UTC time display
- Snapshot/memory feature for GPS data
- Full-resolution timestamp in share feature
- Adjustable decimal places for coordinates
- Ad-free premium version
- More GPS readings and data types
Navigation Marine PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GPS Data
- Upgrade$3.99
Navigation Marine PRO
No in-app purchases
Questions
Is GPS Data free?
Is Navigation Marine PRO free?
Which has better reviews, GPS Data or Navigation Marine PRO?
Do GPS Data or Navigation Marine PRO have ads?
Which is updated more often, GPS Data or Navigation Marine PRO?
Other comparisons
