I recently revisited Google's NotebookLM and was impressed by how far it's come. It was already good, but going back to it and using it as a tool rather than a thing to play around with has made it indispensable to me.

NotebookLM's new mobile app transforms how users consume complex content by offering interactive audio overviews and enabling questions during playback.

The high-powered research assistant has been released as a standalone Android app, and an iOS version is on the way.