It looks very helpful! I tried other tools before and the best so far was azure devops - but It's not for PMs.
Jira is, well... jira (driven by a pm team that doesn't stop adding useless changes). Trello is just to simple for complex things.
I guess upbase is exactly what it needs to have a small and good pm management.
I will buy a lifetime license.
A question thoug: will it support jottacloud for document storage? I don't like google drive because of google and my documents are better stored in norway.