Create a mobile app with at least 3 screens and implement navigation between them. Try adding animations or transition effects to the navigation.

The Navigation Challenge

Write a mobile app that connects to a REST API. The app should display data from the API and allow users to update, create, and delete that data.

The REST API Client Challenge

Modify your app from the REST API Client Challenge to store data locally on the device. The app should be usable even when the device is not connected to the internet.

The Offline Data Challenge

Add user authentication to your app. You can use an existing authentication service like Firebase Authentication or build your own backend to support this.

The User Authentication Challenge

Build a chat app or a real-time game. Use a service like Firebase Realtime Database, WebSockets or similar technology.

The Real-time Data Challenge

Design and implement a custom view or control that goes beyond the standard ones provided by the platform. Animate the view in response to user interaction.

The Custom View Challenge

Create an app that uses one or more of the device's sensors, such as the camera, accelerometer, gyroscope, or GPS.

The Device Sensor Challenge

Optimize a slow or resource-intensive app to be more efficient. This could involve tasks such as reducing memory usage, decreasing startup time, or improving the frame rate.

The Performance Challenge

Ensure your app is accessible to all users. This includes users with visual impairments, hearing impairments, and those who interact with the app through assistive technologies.

The Accessibility Challenge

Write unit tests for the logic in your mobile app. Make sure to cover edge cases and potential errors.

The Unit Testing Challenge

A mobile application that helps users track their fitness activities.

Fitness Tracker

An app that allows users to find recipes based on ingredients they have.

Recipe Finder

A mobile application for users to manage their tasks.

To-Do List App

An app to assist users with travel planning and navigation.

Travel Companion App

A mobile version of an e-commerce website.

Mobile Developer

Learning Resources

Interview Prep

Core Concepts

Code Challenges

Projects ideas

Best Practices