k
kr0yss

Marcos C.

@kr0yss

Mobile app developer, Published on App Store and Google Play

Colombia
Spaans
Sommige informatie wordt in het Engels weergegeven.
Over mij
I'm a mobile app developer who ships. I've built and published apps live on both the App Store and Google Play — with real subscriptions, custom backends, push notifications, and AI features. I don't just hand you code. I take your idea to a working app that's published, monetized, and ready for users. Stack: React Native + Expo (iOS & Android), Node.js + PostgreSQL, RevenueCat subscriptions, push notifications, AI (GPT, voice), and Meta Ads to drive installs. I speak Spanish and write English. Tell me your idea — I'll tell you honestly what it takes to ship it. ... Lees meer

Skills

k
kr0yss
Marcos C.
offline • 
Gemiddelde reactietijd: 1 uur

Bekijk mijn diensten

Platformonafhankelijke development
I will build an ai powered mobile app with gpt and voice features
VanafUS$ 100 / projectMeer informatie
Platformonafhankelijke development
I will fix and publish your ai vibe coded react native expo app
VanafUS$ 100 / projectMeer informatie

Portfolio

Werkervaring

Self_Employed

Independent Mobile App Developer

Self Employed • Freelance

Jan 2025 - Present • 1 yr 5 mos

Designed, built, and published mobile apps for iOS and Android using React Native and Expo. Shipped live apps to the App Store and Google Play with in-app subscriptions (RevenueCat), custom Node.js + PostgreSQL backends, push notifications, AI features (GPT, voice recognition), and biometric authentication. Handled the full cycle: development, store publishing, regional pricing, and Meta Ads campaigns.