For example, Morningstar’s editor has an offline version that you can download. It runs without an internet connection, when Morningstar’s servers are under maintenance, and for posterity in the worst case scenario future proofing your investment. I think they just dumped it into Electron.
If BBM is no longer supported, an offline version of BBMO would make up for much of the difference.
P.S. When will the wireframe graphics be replaced with images of the BeatBuddy ™?