PDF AI Reader vs YNotes

PDF AI Reader — Read, Listen, Learn PDF AI Reader is an all-in-one reading, study and teaching tool for English learners and PDF readers. PDF reading, OCR tap-to-read, AI translation and explanation, multi-engine speech, annotation and interactive learning in one app. Turn one PDF into multiple languages and formats in real time. SMART TAP-TO-READ: SEE IT, HEAR IT Open any PDF and the app recognizes page text and marks it with red frames. Tap any text to: • Hear the whole sentence read aloud, with smart joining across line breaks • Translate instantly into Chinese, box above the text • Follow along: after each sentence the app listens, scores your reading and helps you build natural pronunciation Sentence boundaries, speech bubbles and phrases are detected, so textbooks and picture books both work. Import any English book and it becomes a talking book. Ten offline voices are free forever, with no membership or API key. IMMERSIVE PLAYER Tap text to open the player: read the whole sentence or word by word, drag it anywhere, read the translation aloud, loop or play in the background. AI COMPANION READING AND AI Q&A • AI Companion Reading: deep page-level explanation, custom prompts, presets and cached translations • AI Q&A: multimodal chat on the page screenshot with reasoning, web search and voice questions; history saved per page • AI Circle-to-Explain: select any area for an instant explanation • Dictionary: tap a word for definition and phonetics MULTI-ENGINE SPEECH • Offline engines (Supertonic / sherpa-onnx): no network or API key, Chinese and English, adjustable voice and speed • Qwen: multilingual voices, emotional control • Doubao: rich character voices, including Shanghai and Beijing dialects Adjust speed and volume, and keep listening after you leave the page. WORD LEARNING, END TO END • Word Memory: AI cards with SM-2 spaced repetition and four review games (spelling, listen-and-choose, missing letters, handwriting) • Dictation Assistant: pick words from Photos, camera or a book; AI recognizes words and meanings; local-speech dictation; four activities and history replay • Image Memory: Anki-style picture cards MORE STUDY TOOLS • Speaking Practice: talk about the page with live AI feedback • Create PPT: PPTX Studio turns page content into slides with text, images, audio, video and shapes, exported as .pptx • HTML Interactive Lessons: AI courseware you can run, play and save for reuse • Infinite Canvas: a teaching whiteboard with unlimited pan and zoom, freehand notes and AI analysis of circled content • Apple Pencil: handwriting is OCR-recognized and read aloud, merged with the page and saved LIBRARY AND IMPORT • Import from Files, camera, Photos, share sheet or drag and drop • Folders, drag-to-organize, cover previews • Full-screen reading, page memory, thumbnails, local storage VIP SUBSCRIPTION Weekly ¥12 / week, Monthly ¥45 / month, Yearly ¥398 / year (best value). Includes AI tap-to-read, AI Companion Reading, PDF Q&A, AI dictionary, circle-to-explain, fast PPT extraction, AI word dictation, Word Memory and HTML lessons. SUBSCRIPTION TERMS • Auto-renewing Apple subscription, renewed within 24 hours before each period ends • Charged to your Apple ID within 24 hours before the period ends • Cancel: Settings → Apple ID → Subscriptions → PDF AI Reader. Benefits last to the end of the period • Refunds: apply via Apple at reportaproblem.apple.com LEGAL Privacy Policy: https://yidiantong.website/privacy.html Books, notes and chats stay on your device. Content is sent to third-party AI services (Alibaba Cloud Bailian / Volcano Engine) only when you use AI features, with your consent. No personal data is collected, no ad or tracking SDKs. Terms of Use (EULA): https://yidiantong.website/terms.html Covers subscription rules (weekly ¥12, monthly ¥45, yearly ¥398, auto-renewal), acceptable use, IP and disclaimers.

Most notebooks help you write neater. YNotes helps you learn deeper. Circle a handwritten problem and AI explains it on the spot. Select a paragraph and get the entire page translated side-by-side. Every AI answer becomes a flashcard that links back to the original problem. ———————— AI-Native Interaction Circle to Ask: draw a circle, AI sees your problem and handwriting Three modes: Tutor hints / Full solution / Free Q&A Paste-back: AI answers drop directly into your notes PDF Reading & Translation Full-page parallel translation: offline, free, unlimited (Apple Translation) Document-level AI chat: smart summaries, progressive questions Outline & Mindmap: switch between linear and spatial views Handwriting Experience Built on PencilKit: the most natural Apple Pencil feel Shape recognition, lasso, handwriting-to-text Custom brushes, stickers, tape, layers The Learning Loop One-tap flashcards from any AI answer Jump back to the original PDF page AI generates similar problems for practice Classes & Meetings Audio playback that follows your pen strokes Live transcription + structured meeting notes Split-screen notes + video picture-in-picture Sync & Details iCloud sync across iPad, iPhone, Mac Export to PDF anytime Dark mode for long reading sessions ———————— Subscription Free: core features, forever Pro: unlock AI features with a larger quota Pro+: everything, including priority AI Auto-renews; cancel anytime in Apple ID settings. Privacy: https://ynotesapp.com/privacy Terms: https://ynotesapp.com/ Feedback or questions: yan123412347@gmail.com