Learn how to build a simple REST API using Ktor and create an accompanying Android app in this comprehensive 42-minute tutorial. Explore the process of generating and setting up a Ktor project, implementing a random rabbit route, and integrating Retrofit for API communication. Dive into essential Android development concepts such as creating an AppModule, designing a MainViewModel, and constructing the RabbitApp. Set up the user interface and discover additional resources for expanding your Ktor knowledge. Follow along with provided source code for both the initial and final versions of the app, as well as the Ktor backend. Gain valuable insights into Kotlin-based API development and Android app creation through this hands-on video guide.