Proton Calendar vs Tomboy

Proton Calendar

Office & Productivity

Proton Calendar is a free and open source calendar app created by Proton Technologies AG, the company behind the ProtonMail encrypted email service. It allows users to manage events and tasks with customizable reminders, inviting guests, event coloring, and accessibility features. As with other Proton apps, it has a focus on privacy and security of user data.

Tomboy

Office & Productivity

Tomboy is a free, open-source note-taking and information organizing software application. It has a simple interface for creating, editing, and searching notes, allowing users to easily capture ideas, to-do lists, notes, and more on their desktop.