I didn’t find this in the documents, but I’m pretty sure any time in the year, at the time of closing (Saldierung), you get the interest for the part of the year credited and paid out. 99% of bank accounts pay the interest at EOY, and all the ones I’ve ever closed give you the interest for part of a year.
Anyhow, I have opened a Radicant account in the meantime/last week, and onboarding was similar to wiLLBe. I had problems with the ID process in the afternoon (crashed/froze multiple times), but in the evening worked “first time”.
The “product” does what it needs to.
I suppose wiLLBe-Radicant comparison will often be about interest and fees (where they are very similar), but it is fair to note that Radicant offers a bit more features (virtual debit card, e-Bill, attractive interest above 50k too).