Sketchub is a free Android application that allows you to share your projects and learn from others' creations. It provides a platform for users to upload their Sketchware and Android Studio projects, and soon it will support web and KaiOS projects as well. The app is developed by Sketchub and is available on the Google Play Store.

One of the main features of Sketchub is the ability to learn from other developers' open source projects. Users can easily search through a vast collection of open source projects and gain inspiration for their own creations. Additionally, Sketchub provides an inbuilt tool called "SW Manager" for managing Sketchware projects.

Sketchub also allows users to backup and restore their projects from the app and website, which is a convenient feature for developers who work on multiple devices. However, it's important to note that some features may be missing in this version of Sketchub due to Google Play's terms and conditions, such as the distribution of APKs.

Overall, Sketchub is a useful platform for developers looking to share their projects and learn from others in the community. With its easy-to-use interface and valuable features, it's definitely worth checking out.