We make our portal wechange.de available to all users for a voluntary contribution. This contribution ensures that everyone can use WECHANGE safely and without advertising and ensures the maintenance, operation and further development of the platform. The guideline for cost-covering operation is €7 per person per month. However, since we know that this contribution is not feasible for everyone, we rely on a solidarity model: everyone gives what they can afford. A mandatory payment is only necessary for storage space updates. For projects and groups, 1 GB is included, each additional GB costs you €1 / month (see section "Nextcloud"). WECHANGE is only as good as we make it together. That costs money. But we don't want to be dependent on third-party funding, nor do we want to copy the questionable business practices of the big data octopuses. Instead, we rely on voluntary contributions from you, our users. It's up to you to prove that it works!