If you are choosing between NotebookLM and Lernix AI, you already have lecture PDFs, YouTube videos, and messy notes. You do not need another generic chatbot. You need a tool that turns that pile into something you can actually study.
This is for students who have to remember material for exams, not only research it. NotebookLM — rebranded Gemini Notebook in July 2026 — is a strong research notebook. Lernix AI is a dedicated study app. Those are different jobs.
What NotebookLM (Gemini Notebook) is
People still search “NotebookLM.” Google’s FAQ is explicit: as of July 2026 it is the same product, now called Gemini Notebook, and existing notebooks still work. It is a research and thinking partner, source-grounded, running on the latest Gemini models.
Inputs include PDFs, websites, YouTube, audio, Google Docs, and Google Slides. Google advertises instant insights, citations (“see the source, not just the answer”), Audio Overview “Deep Dive” discussions, concept explanations, presentation outlines, and brainstorming. The FAQ also mentions study aids including flashcards and quizzes. It runs on web and a mobile app. Individual data is not used for training unless you share feedback.
That is a research notebook, not a dedicated exam-study loop.
What Lernix AI is
Lernix AI is an AI study app. The live headline is Turn PDFs, YouTube, Lectures & Images into Study Notes. Paste a YouTube link, upload a PDF, record a lecture, snap a page, or add text. The default outputs are structured notes, flashcards, quizzes, mind maps, Visual Notes (image-based notes), and chat with your notes. Export mind maps and Visual Notes as images. Edit and translate AI notes. The app and notes work in 33 languages.
It is native on iPhone and iPad (iOS / iPadOS 16.4+). Android is on a waitlist. A web version is coming — not live today. New accounts can use Lernix free; see pricing. YouTube and file analysis are extremely fast: the vast majority of analyses finish within 8 seconds.
Side-by-side
| NotebookLM / Gemini Notebook | Lernix AI | |
|---|---|---|
| Job | Research and thinking partner | AI study app |
| Default output | Source-grounded chat, insights, citations | Notes, flashcards, quizzes, mind maps, Visual Notes |
| Speed | Instant insights (Google’s wording) | Most YouTube and file analyses finish in under 8 seconds |
| Practice | Study aids including flashcards/quizzes; Audio Overview | Flashcards, quizzes, mind maps built for exam review |
| Languages | Google ecosystem | App + notes in 33 languages; edit and translate |
| Surfaces | Web + mobile | Native iPhone/iPad; Android and web coming |
| Best for | Synthesis across many Google sources | Exam-oriented study on the phone |
Why students who need to remember get more from Lernix
1. Speed that keeps you in a study flow. On Lernix, YouTube and file analysis is extremely fast — the vast majority finish within 8 seconds — so you stay with the lecture. For video workflows, see YouTube to study materials.
2. A study pack, not just a notebook. NotebookLM is excellent at talking about your sources. Lernix’s default is notes, flashcards, quizzes, mind maps, and Visual Notes — a pack you can review without turning a research chat into practice by hand.
3. A practice loop for exams. Audio Overview is a strong listen-and-learn format. Lernix is built so you test yourself: flashcards and quizzes for recall, mind maps for structure. For documents, see PDF to flashcards.
4. Edit and translate in 33 languages. Foreign lectures become usable notes. Edit AI notes as your understanding changes, and translate them so you do not have to study in the lecture’s language.
5. A native mobile study app. Lernix is iPhone and iPad first — a place to study on the phone, not a Google research workspace. Android is on the waitlist. Web is coming; it is not live today.
6. Visual Notes and exports. Visual Notes are image-based notes for messy, visual subjects. Export them or any mind map as a standalone image to print, share, or pin next to your desk.
7. Chat with your notes after the pack exists. Chat is grounded in your materials, on top of notes you already have — useful while you review, not a substitute for generating the pack.
Lernix also organizes material so you can focus. Lecture recordings follow the same path: lecture audio to notes.
When NotebookLM is still the better pick
Choose Gemini Notebook when your job is research synthesis across many sources — especially Google Docs, Google Slides, and websites — and you need citations you can click back to the quote. Choose it for Audio Overview Deep Dive discussions, for presentation outlines, and when you already live in Gemini. Those are real strengths. Lernix does not claim source citations of that kind.
If you need to turn tonight’s lecture into notes, flashcards, and a quiz on your iPhone before you lose the thread, Lernix is the tighter fit.
FAQ
Which is faster for YouTube?
Lernix analyzes YouTube and files so that the vast majority of analyses finish within 8 seconds. Google describes Gemini Notebook as delivering instant insights; we are not inventing a Google latency number. Lernix is built so that delay stays short enough to keep you in flow.
Does Lernix have a web app?
Not yet. A web version is coming. Today Lernix is a native iPhone and iPad app. Gemini Notebook is available on web and mobile.
Can I start Lernix without paying?
New accounts can use Lernix free. Check pricing for how free use and Premium plans work in the App Store. We do not list dollar prices here because they vary by region.
Start studying on iPhone
Download Lernix AI on the App Store. Paste a YouTube lecture or upload a PDF. Analysis is extremely fast — the vast majority of YouTube and file analyses finish within 8 seconds. New accounts can start free.