Peer-to-peer SMS text encryption
I'm surprised we have not seen much in the way of apps that locally encrypt & decrypt but communicate peer-to-peer over the telecom providers SMS text system. (i.e. Texts displayed outside the app appear as gibberish.) All the metadata would be there for the despots henchmen, but the content would be hidden. Maybe combine it with stenography in photos sent by SMS to obfuscate.