Skachat | Programma S Tablitsami

Best for "Card Views" and treating a spreadsheet like a database.

Or are you for work/personal use?

The best free, open-source alternative if you want classic power without a subscription.

If you are looking for existing programs that already have these "interesting" features, check these out:

Are you and need unique selling points?

Allow users to move small tables around a free-form canvas like sticky notes.