Bricks app: free note-taking and multi-line calculator
free.getbricks.app
free.getbricks.app
However, is this a commercial project? Would be worried about relying on it as it doesn't seem to have had any updates since 2020.
The only risk is maybe the domain stops working. You could use an archived version if you're worried about that:
https://web.archive.org/web/20220206020651/https://free.getb...