Apps Related to Google Calendar integration

KOrganizer is a comprehensive calendar and scheduling application, part of the integrated KDE Kontact suite. It provides robust tools for managing events, tasks, and deadlines, with extensive connectivity options and customization.

Nitro was a free, open-source task management application designed to help users organize their daily tasks and boost productivity. It featured a clean interface and supported various integrations for a streamlined workflow.

Kolab Community is a comprehensive, free, and open-source groupware suite designed for collaborative work. It provides integrated email, calendar, contacts, and tasks functionalities, empowering individuals and teams to communicate and manage their data efficiently and with a strong focus on data privacy.

Android is a powerful and flexible open-source mobile operating system developed by Google. Built on the Linux kernel, it powers a vast array of smartphones, tablets, wearables, TVs, and other devices worldwide, known for its extensive customization options and large ecosystem of apps.