Comparison

JLPT N4文法のまとめ vs LiBook

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

Head to head
About

JLPT N4文法のまとめ

This app helps you master JLPT N4 grammar with clear explanations and practice questions. It supports various devices and offers a comprehensive review of sentence patterns, with options to mark difficult words and take practice tests.

Highlights
  • JLPT N4 grammar compilation
  • Detailed sentence pattern explanations
  • Chinese/English example sentence translations
  • Word marking for reinforcement
  • Over 300 practice questions
  • Randomized practice tests with hints
Features
Read full description

1. Support iPhone SE and above and all iPad, iPadPro versions. 2. Collect all the JLPT N4 article sentence patterns, organized in an easy-to-understand way, with a detailed description of the sentence pattern, no grammatical terms beyond the scope of learning. Easy one-handed operation for efficient learning. 3. While you are looking at sentence description, example sentences are explained in Chinese or English and you can check the explanations whenever you don't understand something. Learning key grammar and sentence points effectively, and reinforce sentence concepts. 4. When you encounter a word you have difficulty remembering, you can use three different symbols to mark it, and tap the word you are marking to reinforce it over and over again. 5. You'll be at the top of your exams after completing more than 300 questions that there is no other question can be compared to this one. 6. No matter what version of iPad you are using,you can select 5 random questions for a practice test, and be able to check for hints, explanations and time spent per question at any time during the test. You will also be informed of your level of understanding after the test.

About

LiBook

Consolidate all your digital books, including EPUB, PDF, and TXT files, into a single, customizable reading environment. Enjoy hands-free page turning, text-to-speech functionality, and seamless cloud synchronization across devices. Organize your library with ease and tailor the reading experience to your preferences.

Highlights
  • Import EPUB, TXT, PDF files
  • Custom fonts and themes
  • Volume button page turning
  • Text-to-Speech (TTS) mode
  • iCloud sync and offline downloads
  • Smart library organization
  • Full-text search and bookmarks
Features
Read full description

Tired of having your favorite web novels, study PDFs, and EPUB books scattered across different apps? Wish you could read everything with your favorite custom fonts, soothing colors, and seamless sync across devices? LiBook is a personal eBook reader crafted to bring all your digital books together into one serene, distraction-free space. Import your EPUB, PDF, and TXT files, organize your personal library, and immerse yourself in pure reading comfort. [ Tailored to Your Eyes: Complete Customization ] - Bring Your Own Fonts: Import and select external font files (.ttf / .otf) for EPUB and TXT books to create your ideal typography. - Custom Themes & Contrast Guidance: Design your own reading themes with custom background and text colors, complete with smart contrast guidance to keep your eyes comfortable. - Precision Layout Controls: Fine-tune font size, line spacing, paragraph spacing, and top/bottom/side margins down to the smallest detail. [ Hands-Free Page Turning: Volume Buttons & Bluetooth Remotes ] - Volume Button Navigation: Effortlessly flip pages one-handed using your device's side volume buttons (+/-). Easily toggle this option on or off in Settings. - Bluetooth Remote & Page Turner Support: Prop your iPad or iPhone on a stand and turn pages remotely from under a cozy blanket without ever touching the screen. [ Give Your Eyes a Break with Built-In TTS (Text-to-Speech) ] - Commuting or resting your eyes in bed? Switch seamlessly to TTS mode and listen to your books like an audiobook. - Includes full playback controls: play/pause, skip forward/back, customizable reading speeds, and a convenient Sleep Timer. [ Seamless iCloud Sync & Smart Storage Management ] - Pick up on your iPad at the exact line where you left off on your iPhone. Your books, reading progress, bookmarks, and highlights sync automatically via your Apple Account. - Offline Collection Download: Download entire collections at once so you can read worry-free on flights or subways without internet access. - Smart Space Saver ("Remove Download"): Running low on device storage? Remove the local file from your device while keeping the book and your reading data safely stored in iCloud. [ Optimized Engines for EPUB, TXT, and PDF ] - Smart TXT Chapter Detection: Automatically detects chapter breaks in plain text files to build a clean table of contents. - Flexible PDF Viewing: Customize fit-to-screen options, scroll directions, and page-turn styles for effortless document reading. - Distraction-Free Scroll Mode: Remembers your exact scroll position and prevents accidental chapter jumps by restricting chapter navigation to intentional left/right swipes. [ Organize, Highlight, and Rediscover ] - Effortless Library Management: Import entire folders and organize your books into clean collections with flexible sorting options. - Powerful Reading Tools: Navigate easily with a smart Table of Contents (highlighting your current chapter), full-text search, bookmarks, and highlights. [ 100% Private & Zero Ads ] - No sign-ups, no accounts, and zero ads. - LiBook does not collect or transmit any personal data. Your books and reading notes stay strictly on your device and in your private iCloud. Download LiBook today and enjoy a cleaner, smarter, and more comfortable daily reading experience!

Screenshots

JLPT N4文法のまとめ4 screens
LiBook4 screens

Verdict

The call

The clearest difference is review sentiment: LiBook at 96% against JLPT N4文法のまとめ's 33%. LiBook also leads on price (Free vs $9.99) and update cadence (every 3 days vs every 5 months). On ads, in-app purchases and device support 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

LiBook is free to download; JLPT N4文法のまとめ costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JLPT N4文法のまとめ ships an update every 5 months, LiBook every 3 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

Scorecard5 real differences · 5 level
JLPT N4文法のまとめ versus LiBook: the parameters behind the verdict, then further details
ParameterJLPT N4文法のまとめLiBook
Price$9.99Free — better
Rating—4.2 (6 ratings) — better
Positive reviews33.3% of reviews95.7% of reviews — better
Number of ratings—6 — better
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.0 — better
Further details — not scored
Size16 MB20 MB
Age rating4+4+
DeveloperYamase & Touwa Japanese InsitituteJOOYOUNG MAENG

Customer experience

JLPT N4文法のまとめ

Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

LiBook

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews23 reviews
Positive95.7%
Neutral0.0%
Negative4.3%

In-app purchases

None

JLPT N4文法のまとめ

No in-app purchases

None

LiBook

No in-app purchases

Questions

Is JLPT N4文法のまとめ free?
JLPT N4文法のまとめ costs $9.99, with no in-app purchases.
Is LiBook free?
LiBook is free to download, with no in-app purchases.
Do JLPT N4文法のまとめ or LiBook have ads?
Neither JLPT N4文法のまとめ nor LiBook shows ads.
Which is updated more often, JLPT N4文法のまとめ or LiBook?
JLPT N4文法のまとめ ships an update every 5 months, and LiBook every 3 days. Most recently, JLPT N4文法のまとめ was updated on November 6, 2026 and LiBook on November 10, 2026.

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