Simple Functional Measurements on Google Map
Works well, but is as simple as the price. Free! The path measurement is free form, not based on line segments which makes it easy to follow normal curvy roads, but stops measuring as soon as you stop moving your finger. Measurement re-starts as you set your finger down again. Seems accurate for my purpose, which was to plan a 5 mile walking path around my neighborhood. For that, its great! Use a screen shot to save a path you like!
BB-Ex about
Distance Measurement