I diagnose and fix reproducible Flutter issues in existing Android and iOS apps.

Written scope confirmation before work starts

Root-cause diagnosis

Clean Dart and Flutter source-code patch

API, Firebase, state-management, performance, or device-compatibility fixes

Test and verification notes

Text-only communication and handoff through Contra

Starting price covers one focused, reproducible bug. Related issues can be grouped into a written fixed-price scope after I review the repository, Flutter/Dart version, reproduction steps, logs, and expected behavior.

Large redesigns, full app builds, app-store account operations, and unrelated feature bundles are outside this service. No meeting is required.