When it comes to AI-powered note-taking, Google’s NotebookLM has carved out a niche among students, professionals, and lifelong learners alike. Now, the company is taking a big step toward making that experience truly ubiquitous: the NotebookLM mobile app is now available on Android devices via Google Play and on iPhone and iPad through the App Store. “A mobile app has been one of the most frequent requests” for the NotebookLM team, admits Google Labs product manager Biao Wang in a company blog post, and the wait is finally over.

Since its debut on desktop in 2023 under the “Project Tailwind” moniker, NotebookLM has let users upload documents, slides, PDFs, and even web pages as “sources” that the AI can ingest, summarize, and answer questions about. Now, everything you love about the desktop version has been squeezed into a mobile-friendly interface. You can tap your share icon in any app—whether you’re browsing a website, flipping through a PDF, or watching a YouTube video—and send that content straight into NotebookLM as a new source. It’s an elegant solution to the age-old problem of scattered research: no more juggling dozens of tabs or digging through downloads folders.

But the app isn’t just about quick triage. It mirrors the full functionality of its desktop counterpart, including the ability to ask your AI “expert” questions and receive context-aware answers. Long-form summaries, bullet-point breakdowns, and deep dives into complex topics are all here, too, with the same conversational tone that made NotebookLM a darling among early adopters.

One of NotebookLM’s standout features is its “Audio Overviews”—think of them as mini AI podcasts tailored to the specific materials you’ve uploaded. First introduced last September, Audio Overviews cast two AI hosts who discuss your sources in a lively back-and-forth, weaving in summaries, contextual insights, and occasional banter. It’s a surprisingly engaging way to absorb information, especially for auditory learners or for times when you’d rather listen than read.

With the latest launch, those Audio Overviews can now be downloaded for offline listening and played in the background while you tackle errands, hit the gym, or take a walk. Google highlights that this offline mode is a boon for commuters in transit, travelers in flight mode, or anyone trying to conserve data. And if you’re the kind of person who likes to multitask—scrolling through social media or drafting a message while you listen—NotebookLM has you covered: audio playback continues even if the app runs in the background.

NotebookLM’s journey to mobile wasn’t an overnight endeavor. Initially launched in 2023 as an experimental tool, it shed its “experimental” label in October 2024 and has since been steadily enhanced. In December, Google rolled out NotebookLM Plus to enterprises and paid Gemini subscribers; by February 2025, the service expanded to individual users under the Google One AI Premium plan, unlocking advanced features and priority access.

That backstory explains why the NotebookLM mobile app feels so polished out of the gate. The development team, led by Biao Wang and supported by researchers like Steven Johnson, has had plenty of time to refine the core algorithms—powered by Google’s Gemini models—and iron out the kinks in the user interface.