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Android app development with React Native and Expo

I develop business mobile applications with React Native, Expo and TypeScript. As a freelance developer based in Venezuela, I help adapt business workflows to a phone: recording transactions, looking up information or connecting the app to an existing system.

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What I can build

  • Recording sales on Android when a computer is unavailable.
  • Companion applications for desktop systems or web platforms.
  • Capturing and consulting business data through API integrations.

Technologies and how I choose them

React Native and Expo support the mobile interface, while TypeScript helps structure application logic. I can use SQLite for local information and custom or external APIs for shared data. Offline operation and synchronization are designed around the data and actions your app needs.

Technologies

Scope and delivery

For internal use, I can deliver an Android APK directly to the client. We define devices, data access, installation and updates before development. Store publication or an iOS version requires a separate assessment of requirements and scope. Pricing depends on screens, integrations and synchronization complexity.

I work with clients outside Venezuela. Meetings are preferably in Spanish; for English-language projects, we can communicate in writing, as my conversational English is basic.

Related projects

ZentriBox Mobile
In Development
Featured

ZentriBox Mobile

Companion mobile app for recording sales when the computer is not available.

React NativeExpoTypeScript +1
View Details

Questions Clients Ask

Can the mobile app work without internet?

It can be designed to store transactions locally with SQLite and synchronize them later. We need to define which actions work offline, how records are identified and how simultaneous changes are resolved. These features are agreed as part of the scope.

Do you have a React Native app example?

ZentriBox Mobile is an ongoing project using React Native, Expo, TypeScript and SQLite. It is designed to record sales on a phone when the computer is unavailable and later synchronize them with ZentriBox desktop. Its screenshots and current status are available in the portfolio.

Other development services

Discuss my project