Google rolls out NotebookLM app in Android and iOS

Google on Monday (May 19, 2025) launched a standalone NotebookLM app in both Android and iOS. The app lets users create podcast-like audio overviews based on the documents, and digital files uploaded. Using the mobile app users will be able to further probe the app hosts and request for more details about the sources. 

Google rolled out a Plus version of NotebookLM that offers benefits including more than five times more Audio Overviews, notebooks and sources per notebook, the ability to customise the style and length of the responses, usage analytics and some added privacy.

Originally unveiled as Project Tailwind during a Google’s I/O in 2023, the application reimagined note-taking software by putting language model at its core. 

The key difference between NotebookLM and other AI chatbots is its source-based anchoring. In the world of AI and language models, this is called “grounding”, which limits the model’s search capabilities to remain within the sources provided by the user.