Yes! Nille is completely free to use. All core features including sleep tracking, feeding logs, diaper tracking, growth charts, and family sharing are available at no cost. We believe every family deserves access to great baby tracking tools.
Nille works on iOS (iPhone and iPad), Android phones and tablets, and any modern web browser. Your data syncs automatically across all your devices, so you can track from whichever device is most convenient.
Yes, creating an account allows you to sync your data across all your devices and share access with family members. We use secure authentication to protect your baby's data. You can sign up with your email address.
Absolutely! You can add multiple children to your account and easily switch between them. This is perfect for families with twins, siblings, or caregivers who look after multiple children.
Features
Nille lets you track: Sleep (naps and night sleep with timers), Feeding (bottle, breastfeeding with L/R side tracking, and solid foods), Diapers (wet, dirty, or both with details), Growth (weight, height, head circumference with WHO charts), Milestones (developmental firsts with photos), and Walks/Activities.
Our AI assistant lets you log activities using natural language. Just type things like "Log a 30-minute nap" or "Baby had 4oz bottle at 2pm" and the assistant understands and logs it for you. You can also ask questions like "How much did baby sleep today?" The AI is powered by Google Gemini and works in multiple languages.
Yes! Our growth charts use official WHO (World Health Organization) growth standards. When you log your baby's weight, height, or head circumference, you'll see their percentile compared to children of the same age and gender. This helps you track healthy development over time.
Nille has a dedicated breastfeeding tracker with a built-in timer. You can track left and right sides separately, switch sides during a session, and the app remembers which side you used last so you know where to start next time. Individual timers show exactly how long baby fed on each side.
Family Sharing
Yes! One of Nille's best features is family sharing. You can invite your partner, grandparents, nannies, or any caregiver to join your baby's team. Everyone sees the same data in real-time, so no more texting "when did she last eat?"
There's no limit! You can invite as many family members and caregivers as you need. Each person creates their own account and joins your team via an invitation link.
All team members can both view and log activities. This means grandma can log that she fed the baby, and you'll see it instantly. It's designed for real collaborative caregiving.
Privacy & Security
Yes, we take security seriously. Your data is stored using Google Firebase with industry-standard encryption. Data is encrypted both in transit and at rest. We never sell your data to third parties. See our Privacy Policy for full details.
AI conversations are stored within your session to maintain context and provide better assistance. The AI is powered by Google Gemini, and the text you type is sent to their servers for processing. The app does not record or transmit audio. See our Privacy Policy for details.
Yes, absolutely. You can delete your account and all associated data at any time from the Settings page in the app. Once deleted, your data cannot be recovered, so please export anything you want to keep first.
No. Nille does not request microphone access and does not record or transmit audio. All input is text-based.
Technical
Basic features work offline - you can log activities even without an internet connection. Once you're back online, your data will automatically sync to the cloud and to other family members' devices.
Nille is currently available in English, Russian, Ukrainian, and Georgian. The AI assistant can understand and respond in these languages as well. We're working on adding more languages based on user demand.
You can export your baby's data from the Settings page or the Growth section. This is great for doctor visits - you can share feeding logs, sleep patterns, and growth measurements with your pediatrician.
We appreciate bug reports! Please email us at support@nille.app with details about what happened, what device and browser you're using, and any screenshots if possible. We'll look into it as soon as we can.
Still have questions?
We're here to help! Reach out to our support team.