· Tan Nguyen · Products · 2 min read
From Sleepless Nights to 50K Downloads — The Baby Joy Story
Baby Joy was never supposed to be a product. It started as a personal tool I built during my son is first weeks — because nothing else worked the way I needed it to.
3am, and I couldn’t remember
When my son was born, everything became a blur. When was his last feed? How long did he sleep? Did we give him the vitamin D drops today? My wife and I were exhausted, and we kept losing track.
I tried every baby tracking app I could find. Some were too complicated — ten taps to log a feeding. Some were too simple — no growth charts, no milestone tracking. Some hadn’t been updated in years.
So I did what any sleep-deprived engineer would do. I opened Xcode at 3am and started building.
The first version
The first version of Baby Joy was ugly. It had exactly three features: log a feed, log a diaper change, log sleep. That’s it. No design system, no onboarding flow, no analytics. Just the three things I needed to track at 3am with one hand while holding a baby with the other.
But it worked. And because it worked for me, I figured it might work for other parents too.
What it became
Over the following months — between feeds, naps, and the occasional full night of sleep — I kept building. Growth tracking with WHO charts. Milestone recording with photos. Daily activity summaries. Health records for vaccinations and doctor visits.
Every feature came from a real moment. I added the growth chart because I wanted to see if my son’s weight was on track without Googling percentile calculators. I added milestone tracking because my wife wanted to remember the exact date of his first smile.
50K downloads later
Baby Joy launched on the App Store and quietly grew through word of mouth. No marketing budget, no paid ads — just parents telling other parents. Today it has over 50,000 downloads and a 4.8-star rating.
The reviews still get me. Parents writing about tracking their twins’ feeding schedules. A dad who used the growth charts to catch an issue early. A mom who looks back at the milestone timeline and cries happy tears.
The app that started everything
Baby Joy was the first product under The Everest Lab. It proved something I’d always believed: the best products come from solving your own problems. Not from market research. Not from competitor analysis. From actually needing the thing you’re building.
That same philosophy drives everything we build here.
Download Baby Joy on the App Store or learn more about it.
