MarginNote 4 vs EchoRead

MarginNote is the PDF study tool for deep readers. One excerpt is a PDF highlight, a mind map node, and a flashcard — one capture, three places. This is the Card Axis architecture, so you stop ferrying content between a PDF reader, a notes app, and a flashcard tool. A decade of iteration. 188K+ App Store ratings. 【Four Featured Mechanics】 ▸ Card Axis — One excerpt, three renders. Document highlight, mind map node, and flashcard are the same card seen from three angles. ▸ Title Link — Old notes auto-surface in new documents. When a familiar concept appears in what you're reading, your past annotation lights up on the page. ▸ Extended Note — Long-press anywhere on a PDF to open writing space. No anchored text required; three display modes (inline / margin / collapsed). ▸ Immersive Mode (4.4) — Three-state toggle: Read / Write / Recall. UI folds away. Recall blurs excerpts with Gaussian blur — tap to reveal only after you've actually recalled. 【AI Capabilities (introduced in 4.2)】 AI book breakdown · AI OCR templates · AI translation · AI Q&A · AI flashcard generation Our stance is AI as assistant, not replacement — every suggestion can be saved as your own thinking node, never thinking for you. 【Apple Intelligence (iOS 26+)】 Recall Mode hints can run on-device via Apple Intelligence — pick "Apple AI" or "cloud LLM" in Settings. With Apple AI selected, three tiers of help — Neighbor Coordinate · Reasoning Prompt · Key Distinction — are generated by Apple Foundation Models right on your device: no network calls, no AI credits used, your notes never leave your device. Even if you've selected cloud LLM, going offline auto-falls back to Apple Intelligence (provided your device supports it) — so libraries, planes, and exam-day silent rooms never break your hint loop. 【Full Workflow】 Fast OCR · Study Sets (PDF / EPUB / video / audio) · direct read from Zotero / cloud drives / USB · 10 mind map styles · book recomposition · dual-document compare · concept maps · handwriting layers 【FSRS Spaced Repetition】 Built on the open-spaced-repetition project's algorithm (paper accepted by ACM SIGKDD; Anki has used FSRS as its default scheduler since v23.10). Push short-term memory into long-term. 【Built For】 Anyone re-reading a single document until it sticks — med school (USMLE / MCAT) · law school (LSAT / bar exam) · grad prep (GRE / GMAT / CFA) · researchers · language learners (IELTS / TOEFL) · serious readers. 【All Apple Platforms】 iPhone + iPad + Mac under one Apple ID. iCloud syncs Study Sets, notes, and review progress. Native Apple Pencil support on iPad. — Questions? Email service@marginnote.com Terms: https://dist.marginnote.com/MarginNote_Terms_and_Conditions.pdf Privacy: https://dist.marginnote.com/MarginNote_Privacy_Policy.pdf

Turn your book highlights into visual mind maps — powered by AI. EchoRead transforms how you read, think, and remember. Import highlights from Kindle, WeRead, and PDFs, then watch AI organize them into beautiful mind maps. With the Feynman learning method built in, you don’t just collect notes — you truly understand them. Rated 4.88 on the App Store --- HIGHLIGHTS TO MIND MAPS, INSTANTLY Import reading highlights from Kindle, WeRead (微信读书), and PDFs. EchoRead’s AI automatically structures them into clear, visual mind maps — no manual organizing needed. See the big picture of any book at a glance. LEARN DEEPER WITH THE FEYNMAN METHOD Go beyond passive highlighting with three AI-powered learning modes: - Concept Learning — Break down complex ideas into simple explanations - Reading Partner — Discuss books with an AI companion - Quiz Me — Test your understanding and strengthen recall DISCOVER HIDDEN CONNECTIONS EchoRead automatically finds related notes across all your books using deep learning. See how ideas from different authors connect — without lifting a finger. TURN YOUR NOTES INTO PODCASTS Transform your book highlights and reflections into engaging, conversational podcasts. Listen to your reading insights on the go — a feature no other reading app offers. CAPTURE EVERY INSIGHT - Sentence Analysis — Annotate any highlight with AI-powered Q&A - Card Notes — Record quick ideas with automatic cross-book linking - Personal Summaries — Write chapter-level and book-level reflections - Full Book Notes — Generate complete mind map or document summaries --- IMPORT FROM YOUR FAVORITE PLATFORMS - Amazon Kindle highlights - WeRead (微信读书) - PDF highlights & annotations - XMIND mind maps - Manual input --- BUILT FOR READERS WHO WANT TO REMEMBER Most reading apps help you collect highlights. EchoRead helps you understand them. From highlight to mind map to deep learning — EchoRead closes the loop between reading and true knowledge. Start for free. Download EchoRead and import your first book today. --- Subscription Information: - Payment: Your iTunes account will be charged after purchase confirmation. - Cancellation: Turn off auto-renewal at least 24 hours before the current period ends to avoid being charged. - Renewal: Your account will be charged within 24 hours before the period ends for renewal.