You can support calcurse development in many different ways. If you know how to code, one of the best ways to contribute is to submit patches fixing bugs, adding features or improving overall code quality. We are also extremely grateful for donations. These donations are used to cover recurring costs, such as for our servers, and help us continue developing calcurse as open source software.

Option 1: Credit Card / Google Pay / Apple Pay via Stripe

We use Stripe to process payments. The payment process requires a modern browser with JavaScript support. If you have any questions regarding the donation process, feel free to contact us at <donations at calcurse dot org>.

Option 2: Bitcoin

We welcome Bitcoin donations. Please use the address


Feel free to send an email to <donations at calcurse dot org> if you want to donate non-anonymously and want your name/alias to be listed on our donors page – or if you have any questions related to the donations process.