This is a wonderful app for following maps and collecting a range of data types. It has quickly become my go-to for basic geologic sampling and documentation work. Unfortunately, I can only give it 4 stars because it has a number of significant bugs that should be easy for the developers to sort out: 1. Crashing immediately upon taking a photo (oddly my colleague’s install on a similar iPad mini has no such problem), 2. Occasional app freezes, 3. The GPS tracking is often slow to find the device (slower than other apps on the same device) and sometimes stops updating the location without even showing that GPS tracking is off, 4. Heavy battery use, 5. Refusing to use certain stratigraphic units that have been stored, and 6. Other, rarer, problems, including once refusing repeatedly to lock in a strike and dip I’d typed in. It would also be quite helpful if users could load feature data, such as from a KML or shapefile.
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