k
kr0yss

Marcos C.

@kr0yss

Mobile app developer, Published on App Store and Google Play

Colombie
Espagnol
Certaines informations sont présentées en anglais.
À propos de moi
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. ... Plus d’infos

Compétences

k
kr0yss
Marcos C.
hors ligne • 
Temps de réponse moyen de 1 heure

Voir mes services

Développement multiplateforme
I will build an ai powered mobile app with gpt and voice features
De100 $US / projetPlus de détails
Développement multiplateforme
I will fix and publish your ai vibe coded react native expo app
De100 $US / projetPlus de détails

Portfolio

Expérience professionnelle

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.