Pushbullet is one of the most useful mobile apps out there at the moment, to the point where I’d even say it’s essential for people who use both a computer and a smartphone regularly. Now that it has a large enough userbase, the service has decided to adopt a freemium model in order to start making money, but that shouldn’t dissuade you from giving it a try. Most of the features are still available on the free version, but those of you looking for a bit more functionality will now have to pay $4.99/month to get it.