When my son Max was born earlier this year, one of the first things I did (somewhere between learning how to swaddle and figuring out why he screamed at 3 AM) was download every baby tracking app I could find.
I needed something simple: log sleep, track feedings, note diaper changes. The basics. What I found was frustrating.
The problem with baby tracking apps
Most popular baby trackers charge $60-80 per year. For what? Logging when your baby ate and slept. That felt excessive for what amounts to a glorified stopwatch with a database.
But the price wasn't even the biggest issue.
My family speaks Spanish. My parents wanted to help track when they watched Max, but the popular apps (Huckleberry, Nara, Baby Tracker+) don't even offer Spanish. Not bad Spanish, not rough Spanish. No Spanish at all. For a product used by families around the world, that felt like a gap nobody was bothering to close.
And family sync (letting both parents and grandparents log and see data in real time) was always locked behind the most expensive tier. This is a basic feature for any family where both parents are involved. Why gate it?
So I started building
I've spent years as a software engineer at Netflix and Amazon, building products used by people in dozens of countries. That work taught me that good software adapts to users, not the other way around. So when I couldn't find a baby tracker that worked for my bilingual family, I decided to build one.
- Four languages, not Google Translate. Spanish, Portuguese, Italian, and English, all written to sound natural. Not just translated, but localized.
- Family sync included for free. Every family member gets a shared view. No paywall for something this fundamental.
- Regional pricing. A family in Chile or Brazil shouldn't pay the same as one in San Francisco. nappi adjusts prices by country.
- Smart nap predictions. Instead of just recording data, the app learns your baby's patterns and predicts when the next nap should happen. It uses your baby's age, wake windows, and their personal sleep history to give you a schedule that adapts daily.
What nappi does today
After months of building (while sleep-deprived, the irony is not lost on me), nappi does a lot more than I originally planned:
- Sleep tracking with predictions: timer or manual entry, with nap and bedtime predictions that learn from your baby's patterns
- Feeding: nursing (left/right with timer), bottle (breast milk or formula), and solids
- Diapers, pumping, growth: all the tracking basics, with WHO percentile charts for growth
- Sleep sounds: built-in white noise, rain, and lullabies to help your baby fall asleep
- Trends and reports: see patterns over days and weeks, not just a timeline of events
- Voice commands: "Hey Siri, start a nap" or use the Alexa skill to log hands-free
- Vaccine card: track immunizations and see what's coming next based on your country's schedule
- Apple Watch app: log from your wrist without reaching for your phone
- Lumi AI assistant: ask questions about your baby's patterns (like "is Max sleeping enough for his age?" or "when was the last time he ate?")
It all syncs across devices in real time and works on both iOS and Android.
Moments: sharing photos without giving up privacy
One thing that kept bugging me as a new parent: I wanted to share photos of Max with my parents and in-laws, but I didn't want to post them on social media. The group chat approach works, but photos get buried and compressed, and there's no good way to look back at them later.
So I built Moments into nappi. It's a private photo feed shared only with your family members in the app. Grandparents see new photos as they're posted, and everything stays within the family. No social media accounts, no public profiles, no ads. Just a simple, private timeline of your baby's milestones that the people who care most can follow.
Built for every family, everywhere
Most baby tracking apps are built for English-speaking families in the US and call it a day. If you speak another language, you're out of luck. If you live somewhere with a different cost of living, you pay the same price.
I wanted nappi to work for families everywhere. That means real multilingual support (not a checkbox, but actual native-sounding translations in four languages), pricing that makes sense in each country, and features like country-specific vaccine schedules. Whether you're in Seattle, Santiago, or São Paulo, the experience should feel like it was built for you.
Where things stand
nappi launched a few months ago. It's still early. I'm a one-person team balancing building the product with being a new parent. The app is solid (it does everything the major trackers do, plus predictions, AI, private photo sharing, and voice commands), but I'm still growing the user base.
I'm sharing this because I want feedback from other parents:
- What features do you actually use in your baby tracker?
- What do the popular apps get wrong?
- If you speak a language other than English, have you found an app that gets it right?
You can try nappi for free. The free tier includes every feature with 14 days of history. Premium is $3.99/month (less in Latin America and other regions).