Tangram is a new kind of browser. It is designed to organize and run your Web applications. Each tab is persistent and independent. You can set multiple tabs with different accounts for the same application.
Common use cases:
I don't really get the usefulness of Tangram, besides being able to log with multiple accounts on systems that do not support that — Gmail does, for instance. It would be awesome if every application could have its own window and be independent of each other, but placing everything inside the same window kills it for me.
Very useful. Can have with different accounts for the same web site (for example, two or more different gmail accounts). Very fast software. A great replacement for "multiple accounts" apps like Franz, Ferdi, etc., that are all very slow and heavy.