Wewe

What it is

Audio-only monitoring over WebRTC — Monitor from a spare phone or a dedicated ESP32 board you build yourself
Local noise gate — the Monitor only streams when there's sound
Cry and disconnect alerts (vibration, notification, and an audible beep, each independently toggleable) plus push-to-talk on the Parent phone
Pairing by QR code, six-digit code, or local-network discovery
A convenience signaling relay is provided by default, but everything's self-hostable — see Privacy

Get it

Releases Signed APKs and AABs for every tagged version Build a hardware Monitor Flash an ESP32 with ESPHome — no spare phone needed Source on GitHub GPLv3 · grantstephens/wewe

Privacy

Audio flows directly between the Monitor and the Parent phone, encrypted end-to-end by WebRTC's own DTLS-SRTP. Read the full privacy policy for exactly what the signaling relay does and does not see.