But does the app work only with Alby hub or also with the classic custodial account?
The best user interface is often one that gives you only what you need and nothing more.
Kudos to nostr:npub1getal6ykt05fsz5nqu4uld09nfj3y3qxmv8crys4aeut53unfvlqr80nfm for passing my Drunk User Test™ by giving me a wallet app with two enormous buttons that just do what you expect.
This is solid UX design. 🙌🐝⚡️ 
Discussion
For now only with the Hub.
it uses NWC as a communication protocol and thus it would actually also work with other nodes/wallets that support NWC.
i tried connecting it to my umbrel LND node using the alby NWC app, got an error. something about length of string
Do you have a screenshot? You have installed it through the alby community store?
https://app.supademo.com/demo/clyrcc5ao0e5ez9kdnu6vls08
(official release will be coming soon to umbrel)
I’m running two of my Alby Hub instances on it now. Plan to test with some additional NWC wallets soon.