Ao

Ao is an unofficial, open source desktop app for Microsoft To Do. It gives users a cleaner and more customizable way to manage tasks from a desktop environment. The app focuses on convenience, visual comfort, fast keyboard control, and cross-platform availability. It includes themes, compact mode, auto-night mode, list navigation, scalable interface controls, and update notifications. Ao also provides many local keyboard shortcuts for common task actions such as adding due dates, completing tasks, creating lists, and hiding completed items. It is community-driven and free, but it is not affiliated with Microsoft.