Kivy

Kivy is an open-source Python framework for developing GUI applications that run cross-platform, including desktop (Windows, macOS, Linux), mobile (Android, iOS), and embedded platforms. It facilitates rapid prototyping and easy interaction design, supporting multi-touch applications with a reusable codebase. Kivy is released under the MIT License, actively developed by a strong community, and is currently at version 2.3.1.