Baby Tracker: LittleCoo
One-Hand Log, Care for You
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The only baby tracker built for true one-hand use, checks on YOU and keeps every caregiver in sync with real-time Family Handoff.
You deserve an app that cares about your whole family — including you.
YOUR WELLBEING MATTERS TOO
Most baby apps track your baby and forget about you. LittleCoo checks on both.
Log how you're really feeling — and if you log "Rough" or "Zombie," your partner gets a gentle nudge so help comes without you having to ask. Claim small victories with Today's Wins. Reset between feeds with guided breathing and a 5-minute deep rest meditation. You're not just a caregiver. You're a person running on very little sleep, and this app knows it.
EVERYONE STAYS IN SYNC
Hand off to Dad at 2 AM or Grandma after daycare — the next caregiver instantly sees the last feed, which side, nap length, and diaper count. Real time, no group texts. Family Sharing included on every plan.
TRACK EVERYTHING, ONE-HANDED
Breast: Left/Right timer with one-tap switching. Bottle: Circular dial, no keyboard. Solids: Emoji grid to log foods in seconds. Diaper: Sliders for wet, dirty, or both. Sleep: Start and stop with a single tap. Pumping: Timer with volume tracking. Activities: Tummy time, bath, outdoor time, and more. Vitamin D Drops: Never miss a daily dose. Growth: Sliding ruler for height, weight, and head size.
DOCTOR-READY IN ONE TAP
Pediatrician asks how much your baby's been eating? Tap Doctor Mode — daily averages for feeds, sleep, and diapers on one screen. Hand your phone to the doctor. Everything they need is right there.
WATCH THEM GROW
Photos with automatic milestone markers. Feeding, sleep, and diaper trends over days and weeks. Growth charts for height, weight, and head circumference. Medical records for vaccinations, doctor visits, and health notes. Export CSV or PDF reports for appointments in one tap.
DESIGNED FOR 3 AM
Dark mode comes standard, because half of parenting happens in the dark.
Built by a parent, for parents.
Terms of Use: https://www.curiositybitllc.com/home/terms
Privacy Policy: https://www.curiositybitllc.com/home/privacy-policy
Terms of Use and Privacy Policy Update
The developer, Curiosity Bit LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Curiosity Bit LLC
- Size
- 56.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- LittleCoo+ Annual $49.99
- LittleCoo+ Lifetime $79.99
- Copyright
- © 2026 Curiosity Bit LLC

