Sorry, but you’re inherently wrong.

Well, when talking about server costs, (…)

We’re not.

Threema somehow has been running on a 5€ lifetime license and business customer subscribtions for over a decade.

Most users doesn’t even donate 1€ when using free messengers.

If your nonprofit only has 65k, don’t hire multiple devs and provide nice-to-have features that lead to high ops expenses in servers and storage. It’s called minimal viable prpduct for a reason.

They don’t offer ANY “nice-to-have” features 😭 You can’t even edit send messages, which I consider to be a basic reasonable feature (which is technically difficult to implement when having E2EE, etc. in mind)