Can anyone recommend a tape measure app for Android?
I want to be able to use an Android device as a simple tape measure to measure things from 10" (25cm) to 16' (5m).
Although a would prefer a single app, it's okay if it needs to be two apps: one for short lengths (10"-24"), and another for longer lengths (24"-16'). I already have a good app to measure lengths under 5", and I can accurately estimate lengths from 5" to 10".
I have tried countless apps, and none of them seem to work well. Many require carrying around another "reference" object" and taking a photo exactly parallel with the object. I would prefer something that does not require a reference object or having to be exactly parallel to the object.
Ideally, I would like something as simple and fast as using a tape measure, perhaps even faster.
Accuracy is important. Accurate to within 2% (or better) would be ideal. That means it's okay if it is off by a quarter of an inch for a foot, or 4 inches for 16'. That's obviously worse than a tape measure, but I'm willing to trade 2% of accuracy for the convenience. At the least, I would like it to be accurate to the nearest inch for short measurements, and to the nearest foot for long ones. More accuracy, of course, is better.
Must be compatible with Android KitKat.
I would prefer a gratis (free of cost) app, but paid apps are acceptable. Open-source would be nice, but is definitely not required.