Comparison

Flexcil Note & Good PDF Reader vs MarginNote 4

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flexcil Note & Good PDF Reader

This app is a comprehensive note-taking and PDF reader designed for Apple devices. It allows users to edit PDFs, annotate documents, create bullet journals, and record audio, all while offering intuitive gesture controls and seamless integration with cloud services.

Highlights
  • Edit PDF pages
  • Annotate documents with gestures
  • Record and playback audio
  • Create bullet journals
  • Cloud sync across devices
  • Masking pen for precise annotations
Features
Read full description

Flexcil: The world’s ultimate iOS note-taking app Loved by Apple Editors - Editor's Choice, App of the Day, Note-taking on the next level, College Life, Apple Pencil Enhanced, New Apps We Love, Noteworthy Apps & Game, Productivity Boost for teachers Whether you’re taking notes, bullet journaling, reading documents, or editing pages from textbooks ー use Flexcil! It’s the #1 note-taking tool for any Apple device. Simply highlight by pen gestures and capture images and text on the study-note by pen gestures! Save time transcribing summaries by gestures on study-note with your Apple pencil. ALL IN ONE NOTE TAKING • Edit PDF pages • Annotate almost anything • Endless pen colors, sizes, and fonts • Seamlessly highlight and underline text with GESTURE • Summarize and organize your thoughts, texts and notes • Instantly open any PDF for reading and studying • Zoom to read small text • Organize and manage your books AND notes EASY AND INTUITIVE • Drag and paste text flawlessly • Add text and annotate with ease • Smooth Image selection • Reading and pen gesture mode - FLEXCIL EXCLUSIVE • Search the dictionary for any definitions you need • Improved the tiring, old-fashioned way of writing which results in wrist/palm pain BULLET JOURNAL & TAKE BETTER NOTES • Easily create bullet journal pages • Hundreds of colors and pen stroke sizes • Colorful covers & templates • Endless creativity ー perfect for artists, hobbyists, or anyone that wants to make studying more fun • Proven to boost productivity & happiness RECORD & PLAYBACK AUDIO • Record everything you hear whenever you take class notes or writing meeting notes • Replay audio recording and review what you wrote during the class or in the meeting • Tab on your note and hear what was said at the moment MULTITASK • Use Flexcil while other apps are open - take notes during lectures! • Edit 2 PDFs at once • Advanced viewing: full screen view, vertical scroll, 4-page view, and so much more COMPATIBLE WITH: • Zoom • Google Classroom • Google Drive • Dropbox • Box • iCloud • Notes • Digital textbooks • ebooks • PDFs and more! APPLE PENCIL • Simulate real-life note-taking by using your Apple Pencil - easy to use for all ages • Guaranteed ZERO touch malfunctions • Support Apple pencil 2nd generation & double tap Plus, enjoy these NEW FEATURES! • Cloud sync: Access your notes from anywhere, and seamlessly sync across devices. • Masking pen: Enhance your annotations with precision using the masking pen. Take your note-taking to the next level with Flexcil. Download the most comprehensive, easy to use, and innovative study tool on the App Store today! * Support: https://support.flexcil.com * Website: https://www.flexcil.com * Twitter: https://www.twitter.com/flexcil * Facebook: https://www.facebook.com/flexcil * Youtube: https://www.youtube.com/channel/UCjro4WpiFnxqKxAXQmASNwg [Access Permission Guide] • Storage (Photos and Videos): Used for adding images to documents in Flexcil, accessing PDF files, purchasing and downloading store content. • Music and Audio: Used for voice recording features, purchasing and downloading store content. • Microphone: Used for voice recording. • Camera: Used for taking pictures when adding photos. • Notifications: Used to display important notification content.

About

MarginNote 4

This app integrates reading, note-taking, mind mapping, and flashcards into a unified study environment. It supports active learning with features like study sets, book compilation, and dual-article views. Enhance your understanding with visual learning tools and AI-powered content extraction for long-term memory retention.

Highlights
  • Integrated reading, note-taking, mind mapping, and flashcards
  • Quick Extend Note and Handwriting Layers for annotation
  • Study Set for organizing PDFs, EPUBs, videos, and audio
  • Mind Map and Concept Diagram for visual learning
  • AI Content Detection for formula and chart extraction
  • FSRS spaced-repetition algorithm for reviews
  • iCloud sync across Apple devices
Features
Read full description

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

Screenshots

Flexcil Note & Good PDF Reader4 screens
MarginNote 44 screens

Verdict

The call

The clearest difference is ads: MarginNote 4 at none against Flexcil Note & Good PDF Reader's shown. Flexcil Note & Good PDF Reader's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (14.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flexcil Note & Good PDF Reader sells 13 one-off in-app purchases and MarginNote 4 sells 12 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.4 for Flexcil Note & Good PDF Reader against 4.5 for MarginNote 4. Both are backed by a comparable volume of ratings — 399 and 716 respectively. Written reviews split almost evenly too, at 59% and 59% positive.

UpkeepUpdate frequency

Flexcil Note & Good PDF Reader ships an update weekly, MarginNote 4 every 3 weeks. Both last shipped on September 22, 2026.

Scorecard3 real differences · 7 level
Flexcil Note & Good PDF Reader versus MarginNote 4: the parameters behind the verdict, then further details
ParameterFlexcil Note & Good PDF ReaderMarginNote 4
PriceFreeFree
Rating4.4 (399 ratings)4.5 (716 ratings) — better
Positive reviews59.1% of reviews — better58.8% of reviews
Number of ratings399716 — better
Update frequencyWeekly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS14.0 — better17.0
Further details — not scored
Size227 MB330 MB
Age rating4+4+
DeveloperFlexcil Inc.Beijing Yunsi Software Technology Co., Ltd

Customer experience

Flexcil Note & Good PDF Reader

All ratings399 ratings
Positive86.0%
Neutral4.3%
Negative9.8%
Written reviews766 reviews
Positive59.1%
Neutral11.9%
Negative29.0%

MarginNote 4

All ratings716 ratings
Positive86.3%
Neutral3.6%
Negative10.1%
Written reviews563 reviews
Positive58.8%
Neutral15.3%
Negative25.9%

User reviews

Flexcil Note & Good PDF Reader

From 399 App Store ratings

What we love

  • 🚀 Best Apps for STUDENTS!!! 😀😀
  • 👍 Love this app
  • 🚀 Powerful multi-page PDF viewer
  • 👍 Great for studying
  • 👍 Excellent app for note taking

Room to improve

  • 🐛 Crashes and performance issues
  • 🐛 Syncing and backup problems
  • 🐛 Buggy handwriting recognition
  • 🐛 Unreliable palm rejection
  • 🐛 Missing key features from previous version

MarginNote 4

From 716 App Store ratings

What we love

  • 🚀 Powerful features
  • 📚 Great for academic/research use
  • 👍 Useful note-taking and organization
  • 🖊️ Improved handwriting and annotation

Room to improve

  • 🐛 Buggy and crashes frequently
  • 🕰️ Slow and laggy sync between devices
  • 🤯 Steep learning curve, poor documentation
  • 💰 Expensive upgrade from previous version

Bugs and requests

Flexcil Note & Good PDF Reader

Reported bugs

5 issues
  • Sudden data loss and file deletion
  • Inability to restore purchases
  • Frequent app crashes and freezes
  • Inconsistent behavior of undo/redo functions
  • Annotations not exporting correctly

Requested features

6 requests
  • Add iCloud sync and backup
  • Improve handwriting search and recognition
  • Bring back reading mode and one-page scrolling
  • Add more pen and brush options
  • Allow customizing notebook paper styles
Show 1 more
  • Implement auto-save and version control

MarginNote 4

Reported bugs

3 issues
  • Disappearing annotations when using extend function
  • Inability to restore accidentally deleted mind maps
  • Inconsistent behavior with PDF file management

Requested features

4 requests
  • Improved iCloud/cloud sync reliability
  • More intuitive and user-friendly interface
  • Better support for external document libraries
  • Ability to disable auto-excerpt selection

In-app purchases

13 purchases

Flexcil Note & Good PDF Reader

One-time13
  • Upgrade product for old usersFree
  • Premium$8.99
  • Flexcil Standard$9.99
Show 10 more
  • 2021-2022 Color Planner$11.99
  • Flexcil NEW Design Planner 22$11.99
  • Premium & Toolbar Skin Pack$12.99
  • Hello Kitty Planner 2022$13.99
  • My Melody & Kuromi Planner 22$13.99
  • Standard & 21-22 Planner Pack$14.99
  • Standard & Design Planner Pack$14.99
  • Standard & 2023 Planner Pack$14.99
  • 2026 Ultimate Planner(Dated) : Pro$15.49
  • Nelna 6-in-1 Planner Bundle$19.99
12 purchases

MarginNote 4

Subscriptions5
  • Subscription to MAX (Monthly)7 Days trial$1.991 Month
  • Subscription to MAX (3 months)7 Days trial$4.993 Months
  • Subscription to MAX (6 months)7 Days trial$7.996 Months
Show 2 more
  • Subscription to MAX (Annually)1 Month trial$12.991 Year
  • MarginNote Max Annual1 Month trial$16.991 Year
One-time7
  • 14 days Free Trial2 variantsFree
  • Upgrade to PRO from MN3(iOS)$4.99
  • Unlock PRO Forever (New)$12.99
Show 4 more
  • Upgrade to MAX from MN3(macOS)$19.99
  • Unlock MAX based on PRO$39.99
  • Unlock MAX based on PRO (New)$40.00
  • Unlock MAX Forever (New)$51.99

Questions

Is Flexcil Note & Good PDF Reader free?
Flexcil Note & Good PDF Reader is free to download, with in-app purchases available.
Is MarginNote 4 free?
MarginNote 4 is free to download, with in-app purchases available.
Which has better reviews, Flexcil Note & Good PDF Reader or MarginNote 4?
MarginNote 4 is rated higher. Flexcil Note & Good PDF Reader averages 4.4 out of 5 from 399 ratings, while MarginNote 4 averages 4.5 from 716 ratings.
Do Flexcil Note & Good PDF Reader or MarginNote 4 have ads?
Flexcil Note & Good PDF Reader shows ads; MarginNote 4 does not.
Which is updated more often, Flexcil Note & Good PDF Reader or MarginNote 4?
Flexcil Note & Good PDF Reader ships an update weekly, and MarginNote 4 every 3 weeks. Most recently, Flexcil Note & Good PDF Reader was updated on September 22, 2026 and MarginNote 4 on September 22, 2026.

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