Grid Ref GK vs FX Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Grid Ref GK
This app helps you find your precise location using the Gauß-Krüger coordinate system, providing both GK grid references and WGS84 latitude/longitude. It displays the accuracy of your device's readings and allows you to easily share your location data via text, email, or other services. While primarily designed for use in Germany, it functions internationally and includes a guide to the GK system.
- Gauß-Krüger grid reference
- WGS84 Latitude and Longitude
- Device reading accuracy display
- Location sharing (text, email, tweet)
- Copy location to clipboard
- Graphical guide to GK system
- International operation
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For use with maps / location data / topology using the Gauß-Krüger-Koordinatensystem. Find out where you are on the Gauss Kruger (GK) system, immediately, and accurately. App Provides: Gauß-Krüger Grid Ref, and WGS84 Latitude and Longitude values. The Accuracy of Readings, as indicated by your device, will also be shown. Share your Location via Text, Email, Tweet etc, or Copy to the Clipboard. (Sharing options and services will vary, depending on the device setup). Though aimed at use in Germany, the app will operate internationally. App includes a graphical guide to the GK Coordinate System. Ideally suited for use by walkers, hikers and outdoor sports enthusiasts. It is recommended that you should always carry a map and physical compass when on outdoor pursuits.
FX Smart
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FX Smart - The easiest surveying app With the simplest GNSS surveying app FX Smart you capture your data quality-assured and logged. Capture points, lines and areas directly in the locality including the required attributes of the corresponding objects. FX Smart is the new assistant in smartphone GNSS surveying. FX Smart is available for your smartphones and tablets, quality assured and efficient! See for yourself: - Quality-assured data acquisition and intuitive operation - Logging of GNSS metadata of the survey - Bring your own device - smartphone / tablet - GNSS using for everyone in the centimeter range - Direct connection to the ArcGIS platform and other platforms - Automatic data flow via WebMaps and Feature Services - Sharing and collaboration of your data via the platform - Easy to use and quick to get started
Screenshots
Verdict
The clearest difference is in-app purchases: FX Smart at none against Grid Ref GK's 1. FX Smart also leads on update cadence (monthly vs every 12 months). Grid Ref GK's advantage is iOS requirement (11.0 vs 15.0). 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. Grid Ref GK sells 1 one-off in-app purchase. FX Smart asks for nothing beyond the download.
Grid Ref GK ships an update every 12 months, FX Smart monthly. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.
| Parameter | Grid Ref GK | FX Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 12 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 185 MB |
| Age rating | 4+ | 4+ |
| Developer | Mike Irving | Frox GmbH |
In-app purchases
Grid Ref GK
- Go Ad Free$0.99
FX Smart
No in-app purchases
