Google play: one account multiple devices I have paid for an app on the Google Play store and I've downloaded it on a device (my Android smartphone). Now I have a tablet, should I pay again for the same app? Or will logging in with the same account allow me to download it to my tablet "for free"?

Differently from question Can I use multiple Android devices with a single Google account? I'm more focused on app for which I've paid to download them, and not simply in app sync.

Since if this is possible, could it be a cracking mechanism? Meaning if a "buyer" account become public (username &amp; password) anybody can use it and download paied app for free.
This could apply for example in a "family" environment for example, one accunt that pay for app and all people having the same account on their device.
It depends of app developer.
Some apps like Evernote, Avira antivirus premium charge once for all devices, whereas others like Icon packs will cost you on individual devices.
This totally depends on the service or app you are talking about.
Good luck