Strike and Dip
Turn your iPhone into a pocket transit
Strike and Dip turns your iPhone into a pocket transit. Take strike & dip measurements, bearings, plunge, and all that geological goodness, while simultaneously getting your latitude, longitude, and elevation. Choose between azimuth and quadrant formats for bearings, and three formats for coordinates.
Works with iPhone 3GS- Buy it for $2.99 at the App Store
Coordinates
Instantly convert between GPS coordinate systems
Coordinates makes it a snap to convert between the three formats for recording latitude and longitude: decimal degrees, degrees and decimal minutes, and degrees-minutes-seconds. Just enter the coordinates in the format you have and the conversions are made immediately. All three coordinate notations are displayed at once. With a single click, you can view the position you've entered in the Maps application. Coordinates can also display your current position using the built-in wifi triangulation or GPS.
Works with iPhone 3G or 3GS- Buy it for 99¢ at the App Store
Coordinates Lite
Instantly convert between GPS coordinate systems, for free
Coordinates Lite is like Coordinates, but without GPS and the ability to plot a location on a map. Coordinates Lite is a great free way to quckly convert between the three formats for recording latitude and longitude: decimal degrees, degrees and decimal minutes, and degrees-minutes-seconds.
Works with iPhone or iPod Touch - Free at the App Store