Dad's Heart- Baby Sleep Sounds

An app used next to a sleeping baby should stay quiet. Dad's Heart never interrupts playback with an ad. No server, no account, no internet needed. ■ Your own voice Record 5 seconds of your "shhh", your calm breathing, or a soft hum. The womb filter softens the high frequencies so it sounds like it did from inside mom's belly. Recordings stay on this phone and are never uploaded. ■ Three layers at once Blend white noise, a lullaby and dad's voice, each with its own volume. · 12 sounds — heartbeat, inside the womb, brown/pink/white noise, rain, ocean waves, fan, stream, campfire, car ride, vacuum · 4 lullabies — Brahms' Lullaby, Twinkle Twinkle Little Star, Frere Jacques, Silent Night (music-box tone) ■ Volume always starts at zero Even if your phone's media volume is maxed out, nothing blasts next to your baby. Every launch, every sound change: back to zero. Press play with confidence. ■ Sleep timer 15 minutes, 30 minutes, 1 hour or all night, with a gentle 8-second fade before it stops. ■ Cry detection After playback stops, if your baby stirs, the phone quietly fades your mix back in. It only measures loudness and discards it immediately. Nothing is recorded or sent. ■ Built for 3 a.m. A pure black screen and one big play button. One tap is all a sleep-deprived parent should need. ■ Sounds with no copyright strings attached Every sound is synthesized by the app itself. No audio files are downloaded. All lullabies are public domain melodies. ■ Privacy · Recordings and settings never leave your device · No account, no analytics of your audio · Fully functional in airplane mode If you'd like to support development, tap "Cheer up, Dad ☕" and watch a short ad. You never have to — nearly everything works without it. Sleep well tonight.