I really hope they still allow you to use it even if you haven't paid the subscription. It's a tool for emergencies so by definition you need it only when you don't expect to need it. It would be a shame to lock people out from something that could have saved their life just because they haven't paid the $x.99 per year service. In theory they could always back-charge users who are not subscribed but even then that could discourage people from using it in a dangerous situation.