Why people stitch five apps together
A typical serious student stack looks like: Obsidian or Notion for notes, a Downloads folder for PDFs, NotebookLM or ChatGPT for questions, a quiz site for practice, and a calendar for deadlines.
Each tool is fine alone. The cost is context switching — and answers that never see the PDF you highlighted last night.
What “all-in-one” means on Shelf
Shelf’s center is a personal study library. Docs and sketch notebooks live beside PDFs. Tutor is the LLM layer grounded in that library. Quiz and planner close the loop.
- Library & reader — organize, highlight, tabs, split view
- Docs & notebooks — typed research Docs and sketch pages
- Tutor — ask an LLM about your own material with citations
- Practice & plan — exam-style quizzes and a revision calendar
Basic Structure doctrine limits Parliament's power to amend the Constitution beyond its core identity.
Kesavananda Bharati (1973) established that certain features cannot be destroyed by amendment.
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Compared with Notion
Notion shines as a general workspace wiki. Shelf treats PDFs as first-class study objects with a dedicated reader and grounded AI on those files — closer to how exam and course prep actually works.
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Compared with NotebookLM
NotebookLM is excellent for chatting with a source set. Shelf keeps a durable library, highlights, quizzes, and planning around that chat — not only notebooks.
Compared with Obsidian
Obsidian is powerful for linked Markdown. Shelf focuses on PDF-heavy study with Docs beside sources and Tutor that retrieves from uploads — less plugin wrangling for the common student workflow.
Basic Structure doctrine limits Parliament's power to amend the Constitution beyond its core identity.
Kesavananda Bharati (1973) established that certain features cannot be destroyed by amendment.
Explain this highlight
Students and teachers in the same product
Students use Shelf as a study tool to ask an LLM about notes and sit practice papers. Teachers prepare lesson PDFs and tests from the same quiz workspace and share handouts when ready.
See /features/all-in-one-study-workspace for the product landing, and the comparison posts for NotebookLM, ChatPDF, Notion AI, and Obsidian.
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