Compare software

Billy vs sevDesk: catalog facts
Billy	sevDesk
Paid Sold through the Mac App Store and the developer's site; the homepage does not state a…	Freemium Free plan available after a 14-day full trial, with paid plans for more features.
macOS	Android, iOS, Web
EN 16931 and XRechnung compliant e-invoices Data saved in open JSON files	Covers German e-invoicing requirements Free plan after the trial
macOS only Focused on invoicing rather than full accounting	Built for German tax rules and in German Hosted only
Downloadable app	Downloadable app, Web application, Hosted service
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.