A FOSS call recorder for de-Googled Android (GrapheneOS) that captures VoIP and Bluetooth calls without root or an always-on accessibility service
GrapheneOS and other de-Googled Android users want to record phone and VoIP calls, but every option forces a security compromise: BCR needs root (impossible with a locked bootloader), accessibility-service recorders demand a permanent broad permission and capture mic-only, and the built-in dialer records cellular calls only. They want an open-source recorder that captures VoIP (Signal/WhatsApp) and Bluetooth-headset calls without rooting or holding an accessibility permission forever. A fresh, multi-user Privacy Guides thread confirms no good solution exists.
Don't ship another accessibility-service recorder -- this audience runs GrapheneOS precisely to avoid broad permissions; the wedge is a Shizuku/ADB-privileged capture that grabs VoIP and Bluetooth audio without root or an always-on a11y service, and being open-source is the price of entry, not a nice-to-have.
landscape (3 existing solutions)
Every working path on a locked-down GrapheneOS device forces a bad trade -- root, a permanent accessibility permission, or a proprietary app -- and none cleanly records VoIP or Bluetooth calls, which is precisely the combination users keep asking for.