Source-based research & returning to saved knowledge
Both apps can help you understand your own sources and test what you learned. Look at how you collect material, organize it, and choose what to revisit or explore next.
Google’s current help pages use the name Gemini Notebook. We keep NotebookLM here so readers can find the product they know.
Try your next topic in Grasply.
Free mobile app · No paywall · Up to 30 flashcards per topic
Choose Grasply if capturing pages and recordings, keeping a personal Library, and moving between Remember and Explore are the routine you want to build.
Choose NotebookLM if source-based research, notebook outputs, Audio Overviews, and its existing flashcard and quiz controls suit your work. It already supports study on mobile.[1][2][3][4]
Compare the features you will actually use. Free study access, AI processing allowances, and the number of cards in a session are different measures.
| What matters | Grasply | NotebookLM |
|---|---|---|
| Free access | Free to use with no paywall. Generate up to 30 flashcards per topic; this is a per-topic card count, not a promise of unlimited usage. | Standard access is free with a qualifying account. Google currently lists daily limits of 10 flashcard generations and 10 quizzes; higher tiers increase limits. These are generations, not individual cards.[3] |
| Source-based study | Create from prompts, PDFs, notes, books, images, or audio. Choose the web or your saved Library as the source. | Upload sources into a notebook and generate study aids from them. On mobile, select or unselect sources for chat and Studio outputs.[1][2] |
| Flashcards & quizzes | Learn, Test, or Discover with Yes / No, four-option multiple choice, and fill-in-the-blank questions. | Generate flashcards and quizzes, choose difficulty, guide the topic with a prompt, and open explanations.[2] |
| Progress & review | Remember Mode revisits selected material, missed cards, and weak concepts. Explore Mode follows connected topics. | Mark cards as got or missed, resume progress, review results, and practice only missed flashcards. Flashcards can be downloaded as CSV.[2] |
| Organization | Keep sources in a Second Brain Library with folders, tags, highlights, and favorites. Chat with an item or wider saved material. | Work with selected sources inside notebooks and create source-based study or research outputs.[2][4] |
| Audio experience | Record or upload audio, save the transcript, chat with the recording, and turn it into questions. Study content supports audio playback. | Audio Overviews present source material in generated audio formats, including brief summaries, critiques, and debates.[4] |
| Mobile access | iOS and Android apps. Saved Library material remains available offline; AI generation and chat require a connection. | NotebookLM has iOS and Android apps with source selection, flashcards, quizzes, and chat.[1] |
On a small screen, scroll the table sideways. Sources describe the plans and platforms available on the review date; check the linked details before choosing.
The app you keep using is the one that fits the way you collect, study, and return to knowledge.
| Your next step | In Grasply | In NotebookLM |
|---|---|---|
| 1. Capture | Scan pages, save notes, add PDFs, or capture a recording. | Add the sources you want to study to a notebook.[2] |
| 2. Organize | Use Library folders, tags, favorites, and highlights across saved items. | Choose which notebook sources to include in a response or output.[1] |
| 3. Generate | Choose your material and create a focused quiz. | Create flashcards or quizzes in Studio, optionally setting difficulty and a prompt.[2] |
| 4. Study | Play mixed questions and inspect explanations or supporting sources. | Study cards, answer quizzes, and use Explain for more context.[2][4] |
| 5. Revisit | Use Remember for saved ideas and Explore for connected topics. | Resume study progress, retake a quiz, or practice missed flashcards.[2] |
Two examples, starting with your own material.
Exams & coursework
Start with: Several course PDFs and your seminar notes.
NotebookLM is also a capable source-based study choice; compare its notebook outputs with the Library and Feed routine you prefer.
Everyday learning
Start with: Book scans, saved links, and your own reflections.
Choose around the routine that gets your saved knowledge back into use.
Actual Grasply iPhone screens. Example workflows describe ways to use your own sources.
Try your next topic in Grasply.
Free mobile app · No paywall · Up to 30 flashcards per topic
Yes, including in its mobile apps. It also supports explanations, progress, and missed-card practice. Those features are shared capabilities, not reasons to claim Grasply is the only study option.[1][2]
Yes. Google offers free standard access with usage limits and paid plans with higher limits. Compare the limits for the outputs you use; a generation limit and a number of cards per topic measure different things.[3]
Start by adding your original PDFs, notes, images, or recordings to the Grasply Library. This page describes reusing those sources, not importing a complete notebook or its generated study history.
Free to use with no paywall. Generate up to 30 flashcards per topic; this is a per-topic card count, not a promise of unlimited usage.
Grasply supports learning content in more than 20 languages, including bilingual sessions and audio playback. This describes study content, not a promise that every app menu is translated.
Saved Library material remains available offline. AI generation, transcription, chat, and web-backed features need a connection. Library synchronization is supported between iPhone and iPad.
Yes. Save a PDF, note, image, book scan, or recording in your Library and choose that material as the source for a quiz. Review the explanation and check important answers against your source.
This comparison is published by Grasply. Competitor details come from the official sources below, reviewed on September 11, 2026. This is a documented feature comparison, not a timed performance test or a claim that one app is best for everyone.
Grasply feature references: features, Daily Learning Feed, and Second Brain Library.
Bring one set of notes, a book passage, or a recording. Make a quiz and see whether the experience suits you.
Try your next topic in Grasply.
Free mobile app · No paywall · Up to 30 flashcards per topic
