Full control over app permissions

  GrapheneOS allows for full control over what permissions each application can have. 
  For example, in conventional Android forks, every application by default has granted 
  Network (internet access) and Sensors [...] permissions.

  Has anyone ever wondered if all apps on a phone need Internet access? 

Well, Apple made privacy a major selling point, so I'm sure you can do this on iOS, too. /s

https://news.ycombinator.com/item?id=40667147