NotebookLM vs Photomath
Both are AI education tools. Here’s how they compare on pricing, use case and popularity — so you can pick the right one without opening ten tabs.
NotebookLM
NotebookLM is a free AI research tool by Google that answers questions, summarises and creates study guides using only the documents you upload — PDFs, Google Docs, YouTube videos, websites. No hallucinations from external knowledge: everything it says is grounded in your sources.
Photomath
Photomath lets you scan any handwritten or printed math problem with your phone camera and instantly see a step-by-step solution with clear explanations. Covers arithmetic through calculus. The free tier solves problems; the paid tier adds animated step-by-step explanation videos.
Pick NotebookLM if you want students and researchers who want ai to help them understand and synthesise their own documents. Pick Photomath if you want students stuck on math homework who need worked solutions they can actually understand. Both have a free way to try them, so the fastest answer is to open each and run your real task.