> ... a simple platform for creating CRUD apps. It doesn’t seem like an unachievable goal to me: you need the ability to create forms, design database tables, manage user permissions, manage data workflow (ie: send an sms if , seek approval from for ), and view/search data.
That's actually a tall order that you're asking for.
For the most basic needs, Excel with macros and connections to data-sources like csv files is perfectly adequate. But you want multiple users, multiple forms, data workflows...
In the microsoft ecosystem, the next step up would be using .NET entity-framework with a database like sql-server express (or even localdb). Your application would then consist of a C# or VB .NET desktop application using wpf or forms.
I think you want something in-between Excel and a full blown .NET application. That's a pretty narrow market.