vpn app (windows + ios + android)

we are unique vpn company ([login to view URL]) need 3 apps (windows + ios + android) with same design for them more systems maybe in future.. must be abale to update and extend for newer service by your company! support and guarantee . very soft and cute app to connect to vpn servers and different protocols easily , user friendly - comptable all devices without 1 issue ! (we currently provide apps for each service like openconnect - openvpn - softether - proxyfire ...) we need to combine all them into unique app, its done by many of our competitors but we need better one app must connect to our ftp - rsync - https etc by priority .. to recive updates and configs, gateways and protocols sort, design - banner - hints - update ... we have several services like pptp L2tp ipsec ikev2 proxy kerio cisco tunnel &&... we can give you samples and how our competitors done like expressvpn or yvpn or nordvpn ... we use IBSng radius server with port 1812 acct and port 1813 for bw json to fetch user exp and start date and its package [login to view URL]