I found it reasonably accurate. I use it with zone focus cameras to approximate distance and as long as you enter an accurate height for your phone, it will give you a good distance reading. If you don't read the directions, user error will cause false readings. Also, keep in mind this is a free app, so even if it's +/- 5%, you really can't complain.
Honestly it worked perfectly for what I need it for. I shoot my rifles constantly in which I was tired of using a tape measure to measure my targets. I myself set the phone up and measured 50', 100', 200', and 300' with the app and had my son spray paint the marks. We then checked it with a hundred foot tape. They were all spot on within 3" to 6". That is actually very good for a cell phone. I have the new Samsung Galaxy 8 in where the app works great. The app uses basic Trigonometry and Geometry to get it's reading. So definitely a 5 star from me guys. Great work and a great app! And if you other clowns disagree do what I did and check it yourself, or go spend $200 and buy a rangefinder. Great work guys!
I believe your app is great. What other people don't realize when rating your application is that you provide a FREE SERVICE. This app is not a 100% accurate, it is however very close to 100% at close to mid range (1-50 feet), and height (1-25 feet). People who take things for free should not be critics. Don't look a gift horse in the mouth. Thanks guys.
Chucked my phone on a tripod set a tape measure 10, 20 and 50 meters and measured the hight from how far the phone was of the ground and it got all 3 measurements pretty much dead on obviously people can estimate heights and it was a bit more difficult free handing with out the tripod but definitely possible and this app definitely works going to make my small game archery hunting that bit easier
Annoying advertisements. A chair is five feet from me, in focus, and the this ap says its 20 feet away. NOT! Uninstalling now.
This works fine for me in the field of construction. As for those who gave negative reviews they might have forgotten to to read the instruction/s before using the software. Thanks guys for this.
New Update ver6.0
★ Improved User Interface
★ Improved accuracy
New Update ver5.2
★ Issue fixed: Force closed when running without internet connection
New Update ver5.1
★ Minor improvements of user interfaces
★ Text sizes adjustment
★ Fixed camera bug
★ Improved accuracy
★ Reduced sensor update rate and power consumption
New Update ver5.0
★ Issue fixed: Camera preview distortion
★ Add Menu dialog
★ User interface improvements
★ Code optimization for power saving