Starting 2017, Apple will require HTTPS coections for iOS apps. Apps will be forced to use ATS, based on TLS, to establish a coection successfully.
I'm currently developing a network measurement tool for a client. Using the low-level socket interfaces, the purpose is to transmit packets over TCP or UDP to a server in the network, in order to measure the speed of the WiFi coection.
As it is not clear how Apple will enforce their new rules, we find it hard to estimate how our application will be influenced by them. Is there any more information available on this? On which types of coections do they apply? Based on what characteristics will iOS label a coection as insecure?