Helpful app but missing a key function?
Unless I just can’t locate it within the app, you may want to consider adding a sensor function for measuring lengths. Granted, iPhones have this capability built-in (not sure about android devices), but that requires switching back and forth between your app and the iPhone measurement function, which is a nuisance considering that this: A) is a “paid app,” and B) is a *basic function* that one would expect to see in an app of this type.