k
kr0yss

Marcos C.

@kr0yss

Mobile app developer, Published on App Store and Google Play

Colombia
Español
Parte de la información aparece en idioma inglés.
Sobre mí
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. ... Lee más

Habilidades

k
kr0yss
Marcos C.
desconectado • 
Tiempo medio de respuesta: 1 hora

Porfolio

Experiencia laboral

Self_Employed

Independent Mobile App Developer

Self Employed • Freelance

Jan 2025 - Present • 1 yr 7 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.

Reseñas como Comprador

  • V
    image-docs

    vaneloren

    CO

    Colombia

    5

    Marcos es muy amable, concreto y sabe exactamente lo que pide, es muy fácil trabajar con gente así. Lo recomiendo.

    Útil?
    Sí
    No
  • F
    image-docs

    francobenve1

    AR

    Argentina

    5

    ya tenemos varios trabajos juntos, siempre es muy claro con lo que necesita, un placer trabajar con el

    Útil?
    Sí
    No
  • F
    image-docs

    francobenve1

    AR

    Argentina

    5

    excellent buyer, it is always good to work with him again

    Útil?
    Sí
    No
  • F
    image-docs

    francobenve1

    AR

    Argentina

    5

    explicaron muy bien el proyecto, pudimos trabajar bien juntos!

    Útil?
    Sí
    No