After 6 months of development, I finally launched my first mobile app today 🚀

Hi everyone,

Today is a pretty big milestone for me.

After more than 6 months of development, I finally launched CartBudget on both iOS and Android.

The idea came from a problem I was having myself.

Last year I realized I was spending over $1,200 every month on groceries without really noticing. Once I started tracking every shopping trip and reviewing my monthly spending, I gradually got that down to around $500 per month.

That experience inspired me to build CartBudget.

The goal wasn't to create another shopping list app—it was to help people understand where their grocery money is actually going before they reach the checkout.

Some of the features include:
🛒 Grocery and shopping lists
💰 Live cart total while shopping
📊 Weekly and monthly budgets
📈 Monthly spending reports
🚨 Budget alerts before overspending
Tech stack
Android: Kotlin + Jetpack Compose
iOS: Swift
Firebase Authentication
Firestore
Cloud Functions

Launching the app has been a learning experience far beyond coding. I've had to learn App Store optimization, short-form video marketing, Product Hunt launches, paid ads, and customer acquisition.

Today is launch day, so now comes the part every indie founder talks about:

Finding the first real users.

I'd love to hear from other founders:

What was the biggest thing that helped you get your first 100 users?
If you launched again today, what would you do differently?

If you'd like to check it out or share feedback:

🌐 https://cartbudget.com

App Store: https://apps.apple.com/app/id6766228722

Google Play: https://play.google.com/store/apps/details?id=com.altitudeengine.cartbudget.app

I'd be happy to answer any questions about the app or the development process.

Thanks!