The best baby tracker apps for sharing with a partner

Updated November 2, 2026

Short answer: if you both use iPhones and want sharing for free without creating accounts, Coo does that. If one of you is on Android, Huckleberry, Nara and Baby Connect work across both platforms. If you want an Apple Watch app, Baby Tracker (Nighp) and Nara have one. If you want expert sleep plans, Huckleberry's paid tiers are the best known.

Why sharing matters

Most newborn questions are about the last time something happened: last feed, last side, last nap, last diaper. When two people are on duty, a shared log means the person who just woke up knows the answer without waking the other. The two things to check are whether sharing is free and whether everyone needs to create an account.

Comparison

App	Partner sharing	Account needed	Platforms	Pricing
Coo	Free	No (uses iCloud)	iPhone, iPad	Free; Premium is a one-time purchase
Huckleberry	Free	Yes (shared login)	iPhone, Android	Free tier; Plus and Premium subscriptions
Baby Tracker (Nighp)	Paid (Plus)	Yes	iPhone, Apple Watch, Android	Plus subscription covers the sync group
Nara Baby	Free	Yes	iPhone, Apple Watch, Android	Free download; paid tiers reported
Napper	Yes	Yes	iPhone, Android	Subscription
Baby Connect	Yes	Yes	iPhone, Android, web	Subscription

Checked against the App Store listings at the end of October 2026. Prices and tiers change often, so check the listing before you buy.

App by app

Coo

Feeding, sleep, diapers, pumping, medicine, growth and milestones, with free sharing through iCloud and no account or servers. Free nap predictions and today's sleep schedule from your baby's wake windows, white noise, Home Screen and Lock Screen widgets, and Live Activities. iPhone and iPad only; no Apple Watch app yet.

Huckleberry

The best-known sleep-focused tracker, with SweetSpot nap timing and personalised sleep plans in its paid tiers, plus an AI assistant. Caregivers share one login. Works on Android.

Baby Tracker (Nighp)

A long-running, detailed tracker with an Apple Watch app, PDF reports, growth charts, vaccinations and temperature. Syncing between parents is part of the Plus subscription, which covers everyone in the sync group.

Nara Baby

Free to download with sharing, wake-window routines, an Apple Watch app, medical records and photos on entries. Reviews and comparison sites report paid tiers after a trial.

Napper

Sleep first: a personalised nap schedule, a large sound library and a sleep course, on an annual subscription.

Baby Connect

Detailed medical-style reports and a web dashboard, useful if a nanny or daycare logs from a computer. It moved from a one-time purchase to a subscription.

How to choose

Both on iPhone, want free sharing and privacy: Coo.
One parent on Android: Huckleberry, Nara or Baby Connect.
Want to log from your watch: Baby Tracker (Nighp) or Nara.
Want a sleep coach: Huckleberry or Napper.
Daycare logs from a computer: Baby Connect.

Sources

This guide is general information, not medical advice. Every baby is different; if you are worried about your baby's sleep, feeding or health, talk to your pediatrician or health visitor.