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Because not needed, has little purpose?
You aren't going to be checking banking/financial/health stuff on your appletv from a public wifi spot.

On iOS, you don't need an app, VPN is built into the OS. I do it to my ddwrt server all the time.
 
I’m hoping someone brings out a VPN app, it won’t last long as it will get pulled
But if we can get it installed early, then it solves my outside of the UK problem

Ask Santa for a VPN router :)
 
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