Spektra is a free color palettes manager app developed by Init 5, available for Android devices. This app offers a private palette space for users to store their collections. In addition, users can access public palettes created by other authors and add them to their favorites list. The app includes several features for creating palettes such as inputting colors using red, green, blue values, hue, saturation, and brightness, or hexadecimal values. There is also an experimental camera view to recognize and extract colors from images. Users can add names and tags to their palettes for easy searching and tagging purposes. The app provides a toggle option to make newly created palettes public or private. Users can also edit, delete, copy, and share their palettes through different social or other applications.

Overall, Spektra is a comprehensive color palette manager app that offers various features for creating, storing, and sharing palettes. However, it is still experimental in some aspects, such as the camera view and image capture features, which may need further improvements. Nevertheless, the app is user-friendly and easy to navigate, making it a useful tool for designers, artists, and anyone who needs a color palette manager app on their Android device.