I belive that you can pay a monthly subscription that entails all your devices for most your VPNS - they allow more than one device - however, if you really want a vpn that is decent I would either recommend PIA and basically a VPN based on the fact tha:
1) it doesn't log your activity - cause if it does you might as ewll not use a VPN
2) to some extent the VPN's location is important, to the extent that location determines/affects the vpn's ability to keep your stuff privacy
3) IF YOU are looking to P2P do they allow it? Do they allow port forwarding (less important) etc
But really on of the best resource to consult for VPN is daam daam: https://thatoneprivacysite.net/
oh and i personally would not recommend either tunnelbear or hotspot...
So why do you recommend PIA and also say that the location is import? They're located in the US, which is probably the worst location to keep your stuff private.