Acres is a powerful easy to use GPS tool that quickly collects area and length measurements. Collect field measurements using GPS, map touch or distance and angle modes. Use snap, control points, CAD like edits and store-by-interval to aid in precise point placement.
Built on top of Google maps and using your phone's GPS locate, measure and record areas and distances. Acres is ideal for construction, environmental, real-estate and agriculture professionals needing to routinely estimate areas or distance. This application was designed and written by a professional software engineer with 20 years of experience writing mobile applications for the land survey profession.
It sounds great and I tried it out. Unfortunately, as mentioned by many people posting feedback, it just crashes and is unusable. Otherwise it would have been of great value to those in the field.