Sonar Ruler

Interesting app. shows principles of sound ranging. Ok in metric and imperial. Ok, it’s a bit quirky and there are lots of ghost echoes at distances other than the “real” one but overall it works for me. Needs better information on what is on the screen and the tweaks that can be done.

Absolute waste of money, app has not been updated to years and will not open at all

App won't open on a 5s running iOS 9, you get a flash of the loading screen and then closes

Doesn't work on my 6. Shame. Looks to be a cool idea.

Doesn't work. Utter rubbish.

Installed on my iPhone 4 and all I got was screaming feedback & error messages on the screen. Watched the video for help & it doesn't help - if anything, makes it worse. Always keen to try everything before leaving a bad review, I sent an email to the 'developer' asking for help. No reply yet & so, here's a bad review. Awful software, awful developer & not worth giving them your money.

Gave me a decent reading in inches but when I switched to metric it all went wrong.

Yes, I did watch the video & yes, I did read the help files, but it still insisted that anything I tried to measure was between 7 inches & 100 inches away from me....probably true but completely useless. Uninstalled.

not trustworthy! waste of time and money! clicking gets annoying too!! 0 stars!

Very accurate if you know how to work it