VPN Client -- 2

I need some simple VPN client for Windows Desktop, Mac OS X, Android and iOS which user can select the protocol between PPTP, L2TP, SSTP (on win only) and OpenVPN, then a server from the available list and also the username and passport of his account and join the network. The client should store connection logs and bandwidth data. I also provide you a simple web service to gather remained days to account expiration to show on the client. It can be whatever you ask from me, such as HTTP with JSON format at output. Better opportunity with individuals who already have the software ready and can give that to me in a very short time. Lower prices is also preferable.