I have to be honest though with this specific feature set I would really prefer a local offline app with a one time payment. I'm using a Saas accounting software for a business I run with some friends which makes a lot of sense because everyone can create invoices and upload receipts etc. – but for something that's just used by me, I find it hard to justify paying a monthly fee and putting all my data in someone else's hands. I can be convinced otherwise though if the features are compelling enough though.

I saw this blog post on the page: https://momo.coach/blog/do-you-fill-out-your-own-tax-report/... Since you seem to be based in Germany, does this mean the app has an Elster integration or export then? Is there DATEV export, in case I do decide to get a tax accountant to look over my things?