PocketFinder 2.0 is GREAT! It works every time I need it; so I know where my family ( teens ) are at all times. Anyone who has any software crashing issues needs to be updated to the latest OS and Browser they use. Also, this is really meant for an iPhone 4s and above and an iPad 2 or above. Then your crashing will stop. I have literally thousands of apps ( from the kids ... OK, me too ) and I have only reviewed maybe a few, if that. I wanted to go out of my way to tell EVERY PERSON WHO HAS A TEEN DRIVING MUST BUY THIS HARDWARE AND APP! PERIOD! Its easy to install, but you can bring it to just about any gas station with a garage, and theyll do it for you in a few minutes. Remember to take a photo of the underside of the transmitter ( or the Black Box ) that came in the box when you purchased it, as it has the numbers you will need to read to the PocketFinder activation center, when first setting it up. Once PocketFinder activates the Black Box, just like a new phone needs to be activated, it just works. Then you open PocketFinder v2 and set up zones you choose and actions to happen if they go in or near the zone, such as where I know my kids should and should NOT be; and Ive set up speed limits as well. I get a text message and an email ( my choice in settings; you can choose just one, or none ) that tells me exactly when they arrive and when they leave! Furthermore, I know when to have a long "talk" with them as I know when theyve exceeded speed zones as well. And, on the, not to rare occasion, when they get lost, I can find their location and direct them back on track. I firmly believe EVERYONE with a teen, grandparent, parent, etc. still driving, or a child of special needs who drives, this is a MUST HAVE device!!! It has literally saved my kids multiple times when they got lost in areas they dont belong. Please buy one for your teen, mom, dad, etc. ASAP! Remember, not all cars have Siri or MS Sync built in to notify you of an accident... outside of them being unconscious, this is your answer to safety!!!