I can add features to your existing app based on your description with a detailed plan and deadline of the whole process. Creating a high-quality product and ensuring customer satisfaction is my main goal for all my projects.

Start with understanding what the client wants. An emphasis on this step, as having mixed understanding can hinder the app later down the process and affect customer satisfaction.

Understanding the User Interface. It's recommended that the client has a UI design in mind as well as all the necessary assets I need to make the app. If not, I can create the UI based on the specifications. Here are some elements to consider: color scheme, typography, layout style, navigation style, buttons and call-to-action, images and icons, animations and transitions, screen size preferences, user preferences, etc.

Getting the required files needed to work on the app. This can be done through Github.

I will then create a detailed step by step plan on what I will work on throughout the deadline. This will be an assumption based on what I think needs to get done first before moving on to the next step. The time it will take to complete each step can be longer or shorter than what is written because there will always be the challenge of writing code that does not work how I want it to work.

Send updates on completed tasks (optional).

When the app is completed, I can send images and/or video of the app being used and the client can describe final revisions (if any).

I will send you a Github link of the completed app.