The checked library
Practical guides to summarizing and studying on iPhone
Published guides put the general method before the product workflow, cite their evidence, document the limits of the review, and disclose that Heni Hazbay creates Summarise Visually.
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How to summarize a PDF on iPhone without losing context
Prepare readable PDF text, choose a useful summary format, and verify the notes against the original document.
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How to check an AI summary for accuracy
Break a summary into checkable claims, trace each consequential claim to the original source, correct errors, and record important omissions.
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How to turn a YouTube video into checked notes on iPhone
Check transcript eligibility, turn supported video text into notes, and verify important points at the source timestamp.
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Turn a research paper into notes you can verify
Create structured, source-located notes and retrieval prompts without mistaking a generated summary for research evaluation.
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Use Key Points and Q&A as an active study loop
Turn checked notes into answer-hidden retrieval attempts, correct mistakes from the source, and plan a later review.
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