Tkinter is a great choice for building simple and straightforward GUI applications. Kivy is a Python library ... that is cross-platform compatible. PyQt and wxPython are both cross-platform ...

Kivy is an open source, cross-platform Python UI framework for rapid development of applications that make use of innovative, multi-touch user interfaces. The aim is to allow for quick and easy ...

SQLite) User authentication Mobile support (Kivy or Flutter integration) ...