You are right for the distance, it uses bluetooth signal strength for the distance estimation with an optimization algorithm and it can not provide the exact value, only an estimation. The app should NOT forget your computer at all. We have experienced that before but managed to fix it in the last release. Please send an email to [email protected] with your exact configuration (iPhone, software, Mac, software) and we'll try to reproduce the bug.
Sorry that you think so. You can ask apple for your money back if you dont like the app. The scenario that you say was fixed and tested in the last update. The app should NOT forget the Mac. Might be that somehow it doesnt work for a certain setup. What system do you have on your Mac? We can try to fix it.
The asking for the pro mode will definitely be fixed in the next release. Let us know if the app doesn't work when you come closer after a longer period of time. This was fixed and tested in the last update. Might be some minor glitches left for certain devices..
There are also a couple of cool features. With Near Lock you can use the iPhone settings to set that your Mac only locks when you walk away, or that it only unlocks your Mac when you approach it, or both of those things.
If you guys have any suggestions or bug reports, just shoot us an email.