Kocaman Pro 3.6 is now available for Android and iOS. Both platforms get the same new features in this release.
Correct datum transformation for global CRSs in Türkiye
For global (EPSG) coordinate systems, the transformation used to go from the system’s datum to WGS84 is now chosen by the location of the point. When the location is in Türkiye, the transformation defined for Türkiye is used; for example, EPSG:1784 (ED50 to WGS 84 (30)) for ED50-based systems. Earlier versions made this choice regardless of location and, for some systems, could pick a transformation defined for another region that was off by several meters in Türkiye.
The app’s built-in ITRF96 and ED50 systems (TM3 and UTM6) are not affected by this change.
When an older project created with a global CRS is opened, the app checks whether the selected transformation has changed. If it has, the app offers a correction. If you accept, the project is backed up first, then the points taken with GPS are recalculated with the new transformation; imported points are left as they are. You can also keep working with the earlier transformation.
Area calculation across zone boundaries
When the corner points of an area spanned two 3° zones, the area could be calculated incorrectly. All points are now calculated in a single zone.
Shapefile warning for mixed-zone projects
A shapefile can carry only one coordinate system. When a project whose points lie in different zones is shared as a Shapefile, the app now shows a warning and offers to share it as KML instead, which converts every point correctly in its own zone. You can still continue with the Shapefile if you prefer.
Other improvements
- In Detailing with GPS, if no location arrives after “Take Point”, the screen no longer locks up; you are informed after 30 seconds.
- The GPS accuracy indicator uses the same thresholds on both platforms: green below 2 m, yellow 2–5 m, red at 5 m and above.
- The new-version notice and app rating now open the store the app was installed from: Google Play, Huawei AppGallery or the App Store. The new-version notice is now available on iOS too.
- Faster global coordinate system list and search.
- Missing translations completed; various bug fixes.
The change history of all versions is on the Release Notes page.
For Android on Google Play · for Huawei devices on AppGallery · for iPhone and iPad on the App Store