GNSS View vs GPS Data
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GNSS View
Visualize the positions of satellite navigation systems like QZSS and GPS in the sky. View satellite arrangements on a radar or through augmented reality from your current location. Supports multiple satellite constellations and customizable display options.
- Position Radar view of satellites
- Augmented Reality (AR) display
- Supports QZSS, GPS, GLONASS, BeiDou, Galileo, SBAS
- Select specific signal satellites
- Set elevation mask angle
- Display HDOP and VDOP values
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This application enables you to see where the Quasi-Zenith Satellite System in the sky! ●What is QZSS? Quasi-Zenith Satellite System (QZSS) is a Japanese satellite positioning system composed mainly of satellites in quasi-zenith orbits (QZO). Satellite positioning systems use satellite signals to calculate position information. One famous example is the American Global Positioning System (GPS) and the QZSS is sometimes called the Japanese GPS. For details, please refer to the following Website "Quasi-Zenith Satellite System". URL : https://qzss.go.jp/en ●What is GNSS View? GNSS View provides that iOS version application that is based on the website application "GNSS View". This application enables you to know position of positioning satellites such as QZSS and GPS in the specified time and location. The positioning satellites displayed in the GNSS View are not based on the satellite information directly received by the smartphone but are displayed based on the satellite arrangement calculated based on the publicly released orbit information. ●GNSS View 3 functions 【Main】 ・You can move to the Position Radar screen or AR Display screen from the application startup screen. ・You can see the operating manual and privacy policy of this application via the website. 【Position Radar】 ・It is provided radar view of positioning satellites such as QZSS and GPS as a sky plot at the specified time and location. ・Positioning satellites can be specified from QZSS, GPS, GLONASS, BeiDou, Galileo, SBAS. ・You can also select specified signal satellites to see on the radar. ・You can see selected satellites by setting elevation mask angle. ・You can switch east and west of satellite arrangement, turn on / off rotation, and switch on / off display of satellite number. ・It displays HDOP, VDOP, the total number of satellites and the number of each positioning satellites in the satellite arrangement displayed on the radar. 【AR Display】 ・Position of positioning satellites such as QZSS and GPS on the sky from your current location is able to see through your camera at the specified time. ・In order to display satellites, it is necessary to turn on the position information of the smartphone and complete the positioning. Therefore, it may take time to display. ・Positioning satellites can be specified from QZSS, GPS, GLONASS, BeiDou, Galileo, SBAS. ・You can also select specified signal satellites to see on the radar. ・You can see selected satellites by setting elevation mask angle. ●Supported versions ・iOS 26 ・iOS 18 ・iOS 17 ・iOS 16 ・iOS 15 ・iOS 14
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.
Screenshots
Verdict
The clearest difference is in-app purchases: GNSS View at none against GPS Data's 1. GNSS View also leads on ads (none vs shown) and iOS requirement (14.0 vs 17.0). GPS Data's advantage is update cadence (fortnightly vs every 7 months) and ratings volume (458 vs 19). On price, rating 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. GPS Data sells 1 one-off in-app purchase. GNSS View asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.3 for GNSS View against 4.4 for GPS Data. That said, the two scores are not equally well evidenced: GPS Data has 458 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 69% of GNSS View's written reviews are positive against 77% of GPS Data's.
GNSS View ships an update every 7 months, GPS Data fortnightly. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.
| Parameter | GNSS View | GPS Data |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (19 ratings) | 4.4 (458 ratings) — better |
| Positive reviews | 68.8% of reviews | 77.1% of reviews — better |
| Number of ratings | 19 | 458 — better |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | NEC Corporation | Oscar Fawkes |
Customer experience
GNSS View
GPS Data
Bugs and requests
GNSS View
Not enough reviews yet to summarise bugs or 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)
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- 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
In-app purchases
GNSS View
No in-app purchases
GPS Data
- Upgrade$1.99








