While the app catalog is currently limited, it is the most private and secure option to get the apps that it has if you need them. Other apps we recommend like Molly (hardened Signal fork) also officially appear on Accrescent. Some popular apps you may recognise are AppVerifier, Aves Gallery, IVPN and ExifEraser (we do not make official ecommendations or endorsements for these apps or services, use at your own preference or risk).
We may add our own builds of certain third party apps but we aren't ready to do that yet. Would be a lot of work.