Our target is to create a simple app to send a data message to the tangle, using the iota-client.
This repository contains the completed source code, after all implementation steps for Android, macOS and iOS. It is part of the IOTA for Flutter Tutorial.
In terms of functionality, the app allows users to enter a message and a tag, which are then sent to the Shimmer Networks' Tangle after validation.
I recommend setting up the project from scratch. I don't have experience in downloading the repository and magically getting it up and running with a single install command. That's why I refer you to the tutorial and the series of videos explaining the build process. Start with the chapter: