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👶

Koo

Baby Tracking & Parenting Companion

Track feeding, sleep, diapers, and milestones. WHO growth charts, voice logging, and collaborative caregiving with real-time family sync.

TestFlight Beta Play Store Beta
Beta iOS & Android Offline-First Free

The App

Screenshots

The Story

Why this exists

Parenting data is scattered everywhere — feeding logs in one app, sleep schedules in another, growth measurements on paper, photos buried in camera rolls. When multiple caregivers are involved (grandparents, nannies, co-parents), nobody has the full picture.

Koo is a single hub for everything. Log activities by voice or tap, track growth against WHO percentile curves (0–24 months, gender-specific), and share milestones through a private Village feed visible only to invited family. Each caregiver gets role-based access — admins manage everything, caretakers log activities, family members see milestones, consultants get read-only data views.

It works offline first. Activities are cached locally and sync via Supabase Realtime when connected. Grounded in WHO, AAP, and CDC guidelines — not internet parenting advice.

7 Activity Types

Track everything that matters
Feeding
Diaper
Sleep
Solids
Growth
Medicine
Milestones

Features

🎤

Voice Logging

Say "4 oz bottle" and the form auto-fills. Natural speech recognition transforms words into structured activity data.

📈

WHO Growth Charts

Clinical-grade percentile tracking (3rd–97th) for weight and length, 0–24 months, gender-specific.

🏠

Village Feed

Share milestones privately with invited family. Reactions, celebrations, and confetti — no public exposure.

👥

Collaborative Care

Invite caregivers with role-based access. Admin, caretaker, family, and consultant roles with different permissions.

📊

Analytics Dashboard

Feeding, sleep, and diaper trends with day/week/month views, comparative charts, and trend indicators.

☁️

Offline-First Sync

Log activities without internet. Changes queue locally and sync via Supabase Realtime when connected.

💤

Sleep Timer

Live countdown for nap and bedtime tracking with haptic feedback and duration logging.

🤖

AI Chat (Coming Soon)

Age-aware parenting Q&A powered by Google Gemini, grounded in WHO, CDC, and AAP guidelines.

Family Roles

Purpose-built access for each caregiver
👑
Admin
Full access, invite members, manage babies
🙋
Caretaker
Log activities, view analytics
👪
Family
View Village milestones
🩺
Consultant
Read-only data access

Built For

New Parents Extended Families Caregivers & Nannies Pediatric Consultants

Tech Stack

React Native 0.81 Expo SDK 54 TypeScript Zustand Supabase Google Gemini Speech Recognition EAS Build

Join the Beta

Help us build the best baby tracker

Koo is currently in beta testing. We'd love for you to try it out and share your feedback. Here's how to get started:

iPhone (TestFlight)

1. Install TestFlight from the App Store if you don't have it
2. Open this TestFlight invite link
3. Tap "Accept" then "Install"

Android (Google Play)

1. Join the Koo Testers Google Group (click "Join group")
2. Open this Play Store testing link
3. Accept the invite and install

Found a bug or have a feature request? Reach out at hyperfocusedengineer@gmail.com