We've had (and have been paying) for this app for about a year now. It was great for quite a while, we could see where my daughter was and monitor her speed as she was a new driver. Over the last two months the notifications have lagged significantly to the point I'll receive 5+ notifications all at once. This is useless to me as some are hours old. I'm not sure what changed on your end but it needs to be remedied if I am going to continue paying for this service.