Browse categories
Explore
Fiverr Pro
English
$
USD
I will add flutter app features and firebase or API integrations
Flutter Developer Mobile Apps Firebase APIs
I build and improve Flutter apps for founders, businesses, and teams with an existing product. I can turn a basic idea into a focused Android and iOS MVP, diagnose difficult Flutter issues, or add a d...
About this Gig
Need a new feature in an existing Flutter app? I will add a defined screen, workflow, Firebase service, or REST API integration while keeping it consistent with your current design and architecture.
I can implement custom UI, authentication, database flows, notifications, maps, API-connected screens, and reviewed Kotlin, Java, or Swift native integrations. Payments, subscriptions, chat, or other service-heavy features are quoted after I review their backend and platform requirements.
Before development, we will agree on what the user does, the expected result, affected screens, and any data or service dependency. You receive the updated source code, loading and error states where needed, testing of the agreed flow, and a clean handoff.
Send me the feature idea, target platforms, current app or source-sharing method, and any Figma or API documentation. I will confirm the right package before you order.
My Portfolio
Other Mobile App Maintenance Services I Offer
FAQ
How is this different from the repair Gig?
This Gig adds new planned behavior to a working app. The repair Gig restores behavior that should already work.
Can you design the new screen or flow?
Yes. Custom UI for the agreed feature is included where App Design is selected. A broad redesign or full design system is separate work.
Can you work with my existing architecture?
Yes. I review the relevant dependencies, state management, navigation, and data flow before changing the feature area. A large architecture rewrite is separate scope.
Can you integrate Firebase or an existing API?
Yes. Standard or Premium can include one reviewed Firebase or REST integration as stated. Multiple services or a new custom backend require a custom offer.
Can you add payments, subscriptions, maps, chat, or notifications?
Yes, after review. These can involve backend work, security, native setup, webhooks, or store requirements, so I confirm the exact scope before quoting.
What counts as a revision?
A revision adjusts the delivered feature to the approved UI and behavior. A new screen, endpoint, business rule, integration, or changed product direction is new scope.
