UnivNote: Lag-Free PDF Notes

Instant PDF notes for studying

Free · In-App Purchases

UnivNote — Smooth PDF Note App UnivNote makes the fundamentals — writing, reading, and organizing on PDFs — fast and reliable, instead of leading with AI. Write on textbooks, slides, papers, and books with iPad and Apple Pencil — open your notes on iPhone and Mac. Recent updates added layers, shapes, memorization tests, exam countdowns, and study time tracking while improving speed, heat, and battery on stroke-heavy pages. ▶ What Makes UnivNote Different · A simple writing tool without AI clutter Responsive pen, fast lasso, easy copy and paste, and a stable PDF reader come first. · Layers — keep the original and your notes apart Keep handwriting, answers, and corrections on 5 layers per note. One tap hides or shows the answer layer everywhere; lock layers to protect originals, move lassoed ink between them. Unused, they tuck behind one button. · Study tools for memorization and review Cover answers with the masking highlighter, tap to reveal. Hide or show all masks, self-grade right/wrong tests, move down the mask list — flow never breaks. Each subject folder shows an exam countdown and logs study time. · Shapes you can re-edit anytime 30+ shapes — lines, arrows, polygons, cylinders, cones, spheres. Drag handles after inserting to tune an ellipse's flatness or a cylinder's shell thickness — great for math and science. · Fast writing with lower heat Input stays responsive as strokes pile up; eraser, paste, undo, and lasso stay smooth. Heat and battery keep improving under load — Split View, screen recording. · Built for lectures and class notes Laser pointer, reading mode, gesture shortcuts, recording, handwriting-synced playback. Recordings survive crashes and continue in the background. · Extend PDF margins on all four sides Add the mm you want per side for problem solving and notes. · Word-aware highlighting on PDF text Long-press and highlights snap to words; text stays black, never washed out. ▶ Main Features · Pen, highlighter, eraser, fountain pen — widths, colors, line styles · Layers — 5 per note, hide, lock, rename, move via lasso · Shape insertion — 30+ flat and 3D shapes, re-edit with handles · Masking highlighter — masks, right/wrong tests, mask list · Exam countdowns + auto study time per subject · Lasso selection — move, resize, rotate, copy, cut, duplicate, delete · Eraser capture delete — wipe all ink inside a closed area · Paste images — photos, screenshots, crop · Share sheet import — PDFs and photos from any app · Audio synced to handwriting — tap a stroke to jump there, up to 3x · Backlinks — all links pointing to this note · Text boxes with text style presets · Favorite pens + per-note tool memory · No-Pencil mode — finger writing, two-finger scroll · Page manager — add, delete, duplicate, rotate, multi-select · Sidebar table of contents — detects and edits PDF Outline · Unified search — PDF text, text boxes, note titles · Reading mode, laser pointer, gesture shortcuts · Design templates — study, planner, journal, creator · Folder library — nested folders, colors, favorites · iCloud sync — notes stay on device when off · WebDAV — import and full backup upload · 27 languages — 한국어/English/日本語/简体中文/繁體中文/Español/Deutsch/Français/Italiano/Português/Nederlands/Svenska/Dansk/Norsk/Suomi/Polski/Čeština/Magyar/Română/Ελληνικά/Русский/Українська/Türkçe/Tiếng Việt/ไทย/Bahasa Indonesia/Bahasa Melayu ▶ Pricing · Free for up to 20 notes · Unlimited Notes is a one-time lifetime purchase · No subscription · No ads · Family Sharing supported · Early Supporters automatically get Unlimited Notes ▶ Privacy · No note data is sent externally · Notes stay on your device or your own iCloud ▶ Recommended Setup · iPad + Apple Pencil recommended; iPhone and Mac supported · iPadOS 18 or later, optimized for 13" and 11" iPad Pro / iPad Air

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This update adds locks for private notes and folders, makes lasso selection across layers more dependable, and introduces a Light fountain pen for smaller handwriting. Changes - Lock any note or folder, then unlock it with your device's biometrics or passcode. Folder locks protect everything inside. Locked content is covered in thumbnails and the app switcher, and authentication is required before exporting or backing up. - Lasso selection now catches strokes and shapes even when only a segment or edge crosses the selection. Handwriting and shapes from different layers can be moved to another layer together, with clearer feedback when a locked layer blocks part of the selection. - The new Light fountain pen keeps Basic's pressure feel but applies gentler curve correction, preserving tight turns and small handwriting while still smoothing minor wobble. - Fixed the lasso or eraser sometimes missing handwriting after a page was loaded, rotated, or flipped, and fixed selected strokes moving to the wrong layer after an internal reorder.

The developer, Jeonghwan Ryu, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Provider
    • Jeonghwan Ryu
    Size
    • 36.6 MB
    Category
    • Productivity
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    English and 26 more
    • English, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Jeonghwan Ryu