Onionphone is a native Android application for anonymous, end-to-end encrypted push-to-talk voice and text communication over the Tor network. No servers, no accounts, no phone numbers — your .onion address is your identity.
Cross-platform compatible with Terminalphone — call between Android and Linux/Termux using the same protocol.
Optionally use your connection as a relay for ephermeral group channels.
Find the release page for version 1.0.2 which supports custom bridges for accessing censored networks.
Happy to contribute! So, currently (only while in the app for now) you can activate the mic with a double pressdown on volume if the setting is enabled.
My attempts to trigger the mic while outside the app came with a few unwanted side affects so I removed it for now until I find a solid way to do that.