Why should you pay for this app ?

We are two passionate developers and started building this app in February 2013 because we missed a good calendar application on Windows. The app has been free for a long time but since we also have costs for building OneCalendar we now feel the need for asking a small fee from our users.

By paying for this app:

• you will help us cover our costs for development licenses and server costs.
• we can continue to add new features to OneCalendar.
• we can continue to fix problems and give support.
• we can keep OneCalendar ad-free. We believe there should be no ads in a calendar application.

Try before you buy

We encourage you to try our software before you buy it. We think our software speaks for itself.

About the app

We think OneCalendar is the best calendar app available. It's simple, beautiful and reliable. But we still have great new ideas so we are still working on adding new features.

About us