Two Android phones become a baby monitor. Put an old phone by the crib, take the other with you. Sound is free and unlimited — listen all night, no ads. Video is free for 5 minutes a day. Premium unlocks unlimited sharper video and talking to the baby. Alerts work with the app closed. Encrypted phone-to-phone. Nothing recorded or stored. No account. First 50: 21-day Premium code F2Z7-QJA7-MPVG Not a medical device.