Babble Diary

Babble Diary passively listens for your baby's voice and turns the day's vocal activity into clear, evidence-based development insights — without ever uploading audio. Speech and conversation are the strongest known predictors of early language development. Babble Diary measures the three signals that actually matter — how much your baby vocalizes, how much speech they hear from caregivers nearby, and how often the two of you take real conversational turns — and tracks them quietly in the background. WHAT YOU GET • Daily Snapshot: Baby Voice minutes, Speech Around Baby minutes, and Conversational Turns, updated throughout the day. • 28-day, 3-month, and 1-year Trajectory charts so you can see your baby's own growth arc, not a comparison to other children. • Milestone Map from 0 to 36 months — Babbling, First Words, Two-Word Combos, Word Explosion, and beyond — with stage-specific tips for what to try this week. • Today's Tip: a short, evidence-grounded prompt picked for your baby's stage (story retelling, expand-and-extend, open questions, naming feelings). • Trend Cards: "growing," "steady," "below usual" — based on your baby's own baseline, not someone else's. • Notifications when a milestone is reached or a strong week shows up. DAILY DIARY & KEEPSAKES • Diary: every day is written for you automatically from your baby's sounds — add your own photos, notes, and favorite sound clips, and browse any day on the calendar. • Memories: this week's highlights picked automatically, weekly snap movies made from your clips and photos, and a library of the sounds you choose to keep. THREE QUESTIONS A DAY • Quiz: three true-or-false questions a day about life with a baby. Swipe to answer; each one comes with the reasoning and its source. • Ones you get wrong return a few days later, so they stick without drilling. • What you learn collects by your baby's age. • Sources include the AAP, CDC, and WHO. PRIVACY YOU CAN VERIFY • All speech detection runs on the device. Audio is never uploaded — not for analytics, not for training, not ever. • Recordings library: short clips from moments your baby vocalized, stored on your phone only — never synced to our servers. • What the cloud sees: numerical features and counts you can inspect. You control whether even those sync. • Per-purpose consent: Cloud Backup and the optional Help Improve Babble Diary program are granted separately. • If you opt in to contribute anonymous learnings, we send only numerical acoustic features — never raw audio, never your voice. COPPA's Verifiable Parental Consent rules require a parent check, so we verify by card ($0.50, refunded). • Export everything you've collected as JSON, any time. • Delete your account and all baby data with one tap. We honor it server-side, not just locally. WHY IT MATTERS Longitudinal research on early language found that adult-baby conversational turns, more than passive talk, predicted vocabulary, brain activation, and verbal IQ years later. Your baby is talking to you whether or not you can quantify it. Babble Diary just helps you notice the patterns. WHO IT'S FOR • Parents of children 0–36 months • Families curious about language milestones without judgment or comparisons to other babies • Anyone preparing for a pediatrician check-up and wanting numbers to bring along PREMIUM (OPTIONAL) The free tier shows today's metrics and 28-day trends. Premium unlocks 3-month, 1-year, and all-time trajectories, the rolling 30-day Recordings library (clips kept on your phone only — never synced to our servers), and milestone deep-dives. Cancel anytime in Settings. WE'D LOVE YOUR FEEDBACK This is a serious, parent-built tool. If something feels off, write us at [email protected] — every email gets a real human response. Babble Diary. Listen with care. POLICIES • Privacy Policy: https://solivie.io/privacy • Terms of Use (EULA): https://solivie.io/terms • Data Retention: https://solivie.io/retention • Support: [email protected]