[ryacko]

Well, ackshually, you can run a server from your phone.

https://stackoverflow.com/questions/8417321/run-a-webserver-... https://github.com/robbiehanson/CocoaHTTPServer

[ubercow13]

It might be randomly killed if the app isn't in the foreground with the screen unlocked, though.

[scarface74]

Just play a silent audio stream and it will keep running.