I will build a custom mobile app with online,offline database

S
samuelrojasdev
S
samuelrojasdev
Samuel Rojas

About this gig

I build Flutter mobile apps that actually work, including the hard cases most tutorials skip: offline functionality, low-end devices, and real error handling.


What I bring to your project:

  • Clean, modern UI following your requirements
  • Local database (SQLite) so your app works without constant internet
  • Voice features available (text-to-speech, speech-to-text) if needed
  • Tested on real low-end Android hardware, not just emulators
  • Signed, release-ready Android build, ready to install


Whether your app needs full offline functionality or standard cloud/API integration, I can build it. Offline-first is my specialty, not my limit.


My background project: a fully offline-first learning app with voice navigation, multiple interactive modules, local data persistence, and a custom animated character system, built entirely from scratch in Flutter.


Message me before ordering if your project doesn't fit neatly into a package below. Happy to scope something custom.

Get to know Samuel Rojas

Samuel Rojas

Flutter Developer

  • FromColombia
  • Member sinceAug 2026
  • Avg. response time1 hour
  • Languages

    Spanish, English
I'm a Flutter mobile app developer focused on a niche most developers overlook: apps that work reliably for users with limited connectivity, low-end devices, or little prior experience with technology. My flagship project is an offline-first learning app built for rural users with no consistent internet access— it includes local database architecture with data migrations, native voice integration (text-to-speech and speech recognition with automatic fallback), and multiple interactive learning modules, all running smoothly on low-end Android hardware.

My Portfolio