FiberVPN Subscription Utility

FiberVPN provides secure network access across mobile devices. The app shows connection state, location switching, premium upsell, and subscription options.

The app needed a stable, cross-platform VPN experience with clear connection states and a subscription flow that converted free users.

Flutter Developer at Codego, 2024.

Worked with the mobile team to integrate the VPN UI with platform tunnel extensions.

I built the Flutter UI, connection-state screens, and subscription flow. The native tunnel implementations were handled by platform specialists.

Specific conversion and subscription numbers are confidential.

• Keeping Flutter UI in sync with native VPN connection state.
• Handling platform-specific subscription lifecycles.
• Presenting clear error states when the tunnel fails.

• Defined the full state machine for connection states before writing UI.
• Used platform channels to bridge native events.
• Built subscription flows with fallback states for store errors.

• Implemented location selection and connection-state screens.
• Built premium upgrade and subscription prompt flows.
• Connected Flutter state to native VPN events.

• VPN apps require tight coordination between native extensions and Flutter UI.
• Subscription state needs careful handling around store restore and errors.