Application Name: CoordTransform
Description: Convert UTM coordinates to latitude/longitude or reverse.
Publisher’s website: None
Cost: Free (ad-supported)
Version/date reviewed: v.1.2 / 11-8-10
Phone/OS: Droid X / Android 2.2
Figure 1: CoordTransform converts coordinates from latitude/longitude to Universal Transverse Mercator (UTM) or vice-versa. Just enter the coordinates in the appropriate boxes and press the appropriate button. When converting from UTM to lat/long, make sure you include the UTM zone and hemisphere for those coordinates.
The program supports 58 ellipsoids for the datum, but unfortunately can’t convert from one datum to another; hopefully, this will be added in a future version.
Figure 2: Program will supposedly accept input in both decimal and sexagesimal (degree-minute-second) format. In the latter, it will be converted automatically to decimal, handy just for that purpose.
Other issues: One fairly substantial bug – it won’t accept or calculate negative values in sexagesimal mode correctly. Author has been informed by comment, and this should be easy to fix.
Final thoughts: If you’re dealing with decimal degrees only, or sexagesimal in the northern half of the Eastern Hemisphere, it’s a useful app as-is. Otherwise, you’ll need to wait for a bug fix.