Rhythm Academia vs PDF AI Reader

■ What is Rhythm Academia? Rhythm Academia is a professional music training app that helps you develop accurate rhythm sense simply by tapping along with sheet music. From beginners to advanced players, you can progressively improve your skills with 90 diverse rhythm patterns, including advanced two-voice patterns. Now completely FREE! All 90 patterns are available to everyone at no cost. ■ Main Features 【90 Progressive Rhythm Patterns - All FREE】 ・Patterns 1-55: Single-voice rhythms ・Patterns 56-90: Two-voice rhythms ・Progressive structure from simple to complex ・Includes quarter notes, eighth notes, sixteenth notes, dotted notes, triplets, and rests 【Two-Voice Patterns】 ・35 advanced patterns for coordination training ・Practice bass and melody lines simultaneously ・Essential for drummers, pianists, and advanced musicians 【Slow-Tempo Example Performances】 ・Patterns 71-90 include both slow and standard tempo examples ・Slow tempo: Perfect for learning complex rhythms ・Standard tempo: Practice at performance speed ・Switch between tempos freely 【Accurate Judgment System】 ・Precise timing evaluation within +-50ms ・Objectively evaluates your rhythm sense ・Professional-level accuracy training 【Example Performance Function】 ・Listen to example performances for each pattern ・Accurate timing after countdown ・Learn through both visual and audio 【Clear Music Notation】 ・Standard staff notation ・Two-voice patterns shown on grand staff ・Develops actual music reading skills 【Custom Speed Adjustment】 ・Adjust practice speed from 0.8x to 1.3x ・Available for all 90 patterns ・Perfect for both beginners and advanced players 【Progress Tracking】 ・Automatically records cleared patterns ・See remaining problems at a glance ・Maintain motivation with visible progress ■ How to Use 1. Select a pattern 2. Listen to the example (optional) 3. For patterns 71-90: Choose slow or standard tempo 4. Tap "Start Judgment" 5. Tap the screen after countdown 6. Check results and move to next pattern Just 5 minutes a day is enough! ■ Pattern Structure 【Beginner (Patterns 1-20)】 Quarter notes, basic eighth notes, simple rhythms with rests 【Intermediate (Patterns 21-40)】 16th notes, dotted notes, basic syncopation 【Advanced (Patterns 41-55)】 Complex 16th note patterns, compound rhythms 【Two-Voice (Patterns 56-90)】 Coordination between bass and melody, advanced two-voice rhythms, triplets *Patterns 71-90 include slow-tempo examples ■ Perfect for ・Drummers, bassists, guitarists, pianists ・Music students learning rhythm ・DTM creators wanting to improve rhythm sense ・Anyone wanting to develop accurate rhythm sense ■ Key Benefits 【Professional Training】 Orthodox rhythm training based on music theory 【Scientific Precision】 High-precision +-50ms judgment system 【Practice Anywhere】 Train during commute, breaks, or before bed 【Step-by-Step Learning】 Example performances and slow-tempo options eliminate uncertainty ■ Pricing All 90 patterns are completely FREE! No in-app purchases, no subscriptions. ■ Message from Developer Rhythm sense is the foundation of music. With 90 patterns including 35 advanced two-voice patterns and slow-tempo examples, Rhythm Academia helps you master complex rhythms at your own pace. Whether practicing coordination or training for professional performance, Rhythm Academia supports your musical journey. Start training your rhythm sense today! ■ Support Contact us through the support link in the app for questions or feedback.

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.