
A Google user
really sensitive, i got readings from people walking up my sidewalk, to my front door. Did not expect that! I wish i had it on when we had a small earthquake off the Oregon coast, but i was asleep and didn't feel it at all. I'll bet it would have registered something. Great app, fun.
11 people found this review helpful

A Google user
Agree that it has good sensitivity. Staying at a hotel near railroad tracks, and this one beat out another one I tried.
5 people found this review helpful

A Google user
Very sensitive app it worked on everything from tapping my ballpoint pen on the table to the sound coming out of my TV to my very soft footsteps across the floor cool app keep it coming.
8 people found this review helpful