Provide the client with the complete source code of the Flutter application. This allows the client or another developer to maintain, modify, or extend the application in the future.

Flutter allows you to build applications for multiple platforms (iOS, Android, web, and more). The client should receive compiled and tested builds for each target platform specified in the project requirements.

Include comprehensive documentation that covers the architecture of the application, key components, how to set up the development environment, and any other relevant information. This documentation is valuable for both developers who may work on the project in the future and for the client's internal knowledge base.

If UI/UX design is part of the project, deliver design mockups, assets, and any other design-related materials.

Provide documentation related to testing, including test plans, test cases, and reports on the testing process and results. This ensures that the application has been thoroughly tested and meets the specified requirements.

Offer clear instructions on how to deploy the application to various platforms. This may include steps for submitting the app to app stores, hosting it on a server, or deploying it on the web.

Commit to resolving any post-launch bugs or issues that may arise. This support may be part of the initial agreement or provided as a separate maintenance contract.

Formally hand over the project to the client, including any necessary credentials, licenses, and access rights. This ensures that the client has full control and ownership of the project.

If applicable, integrate analytics tools and provide guidance on how the client can access and interpret the data.