Sonar Ruler

Lots of fun to mess around with.

after updating the system it does not work at all, it never worked well, but now it doesn’t work at all

Checked in on this once-cool app. Crashed the whole phone, forcing a hard restart.

Used to work fine, now no chirping sound is emitted at all on an iPhone 5S. Help video URL is broken. Any one else gotten it to work recently?

Bought in October 2016. Will not open on iPhone 6 running 10.0.2. Contacted developer but no response! Want my money back.

Absolute waste of money. I have tried it in totally quite locations, keeping it level, and other things that should have improved results, but no luck. The closest to the correct measurement was within 2ft and that was in a noisy environment. Others say it worked on older versions of the iPhone. I could be doing something incorrect, but I have not found the correct procedure to make it work on iPhone 4S.

Tried uninstalling and reinstalling on my iPhone 6 several times but the program exits after 3 seconds every time. Would have been interested to "experiment".

I tried but it does not work.