Best N4Studies Plus Apps

250+ iOS apps curated and reviewed

4.4 avg rating

19 free apps

Updated September 2026

Out of 250+ n4studies plus apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top N4Studies Plus Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	n4Studies Plus	$7.99	3.0★ (1)	No	No	Sep 2026
2	NU+: Northwestern Mobile	Free	5.0★ (5)	No	No	May 2026
3	NC State Moodle	Free	4.0★ (11)	No	No	Sep 2026
4	N4 Kanji Master	Free	—	No	No	Jul 2026
5	N2 Kanji Master	Free	5.0★ (3)	No	No	Sep 2026
6	Nas-ناس	Free	4.5★ (271)	No	No	Sep 2026
7	新东方雅思Pro-免费练习正版真题	Free	4.6★ (89)	No	Yes	Sep 2026
8	Spedia Uni	Free	—	No	Yes	Sep 2026

Top Picks for N4Studies Plus

#1

n4Studies Plus by Chetta Ngamjarus

n4Studies Plus

Editor's Choice

3.0(1 ratings)

$7.99

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This app simplifies sample size and study power calculations for various research designs. It offers tools for regression, survival analysis, diagnostic studies, and more, helping users find calculations in minutes.

#2

NU+: Northwestern Mobile by 轲宁孙

Take a Northwestern Direction

Strong Contender

5.0(5 ratings)

Free

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This app provides a comprehensive guide for Northwestern University students, faculty, and visitors. It offers interactive campus maps, shuttle schedules, event listings, and access to school resources.

#3

NC State Moodle by North Carolina State University

Worth Considering

4.0(11 ratings)

Free

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Access your university course materials and activities on the go. This app allows you to view grades, send messages, and access content even without an internet connection.

More N4Studies Plus apps to explore

N4 Kanji Master

N4 Kanji Master

N4 Kanji Master

by Nay Myo Htet

N2 Kanji Master

N2 Kanji Master

N2 Kanji Master

by Nay Myo Htet

Master JLPT N2 kanji with flashcards, quizzes, and writing practice. Includes stroke order animations, native audio, and example sentences. Perfect for exam preparation and self-paced learning.

Smart flashcards with repetitionInteractive adaptive quizzesKanji writing practice with validation

by NAS Manpower Company

This app provides maintenance, repair, and cleaning services for individuals and companies. Services can be accessed through annual, monthly, or hourly contracts.

Maintenance servicesRepair servicesCleaning services

新东方雅思Pro-免费练习正版真题

新东方雅思Pro-免费练习正版真题

新东方雅思Pro-免费练习正版真题

剑桥官方独家授权正版在线真题

This app offers official, authorized Cambridge IELTS practice tests for listening, reading, speaking, and writing. It features AI-powered practice partners and grading to help users improve their skills and achieve their target scores.

Official Cambridge IELTS practice testsAI speaking practice and writing correctionDetailed explanations and model answers

free with in-app purchases

by MS. SPEDIA CO. FOR EDUCATIONAL METHODS & TECHNOLOGIES WLL

JLPT N4 Listening Training

JLPT N4 Listening Training

JLPT N4 Listening Training

by YOSHIMICHI IWATA

Prepare for the JLPT N4 listening exam with this educational app. It offers practice questions featuring audio and video clips, allowing users to select answers based on what they hear.

JLPT N4 level preparationListening exam practiceAudio and video clips

by Nay Myo Htet

Connecting N21 affiliated IBOs

This app connects Network TwentyOne affiliated IBOs globally, providing access to training, education, and motivation. It offers new media content based on real-world success to inspire and encourage business growth. A subscription to N21Mobile.com is required for full functionality.

Connect with global IBOsAccess training and educationReceive motivational content

by Northern Michigan University

Nachrichten Plus

Nachrichten Plus

Nachrichten Plus

Access news from top German online newspapers in one place. Stay informed with the latest articles and updates from leading German publications.

News aggregationTop German newspapersOnline news access

NewCompleteMaster N4 Word Book

NewCompleteMaster N4 Word Book

NewCompleteMaster N4 Word Book

by INPERIA CO., LTD.

This app provides audio for Japanese vocabulary and reading passages from a specific textbook. Users can memorize words by category, practice pronunciation, and review unticked words. It offers adjustable settings for furigana, translations, and audio playback.

Audio for N4 vocabulary and reading passagesMemorize words by part of speech or categoryConfirm pronunciation with recordings

free with in-app purchases

by Woraphon Paputdee

词道学日语单词-高考日语学习

海量日语词书，兴趣考级全掌握

This app offers a comprehensive Japanese vocabulary learning experience with a vast selection of wordbooks covering textbooks, proficiency tests, and daily life. It features interactive learning methods, AI-powered pronunciation feedback, and gamified challenges to make memorization effective and enjoyable.

Extensive wordbook selectionJapanese-Chinese word and grammar searchInteractive flashcards with pronunciation

free with in-app purchases

Help For Where You're Going

This platform helps college applicants and students explore universities and freelance opportunities. Discover and learn about your next steps in higher education or career paths.

University explorationFreelance opportunity discoveryLearning resources

🌐 Social Networking

BBnotes: AI Notes & PDF Tutor

BBnotes: AI Notes & PDF Tutor

BBnotes: AI Notes & PDF Tutor

For International Students

This app acts as an AI-powered study companion, helping you prepare for classes, take precise notes during lectures, and review material effectively. It offers features like AI summarization, parallel translation, audio-note synchronization, and automatic mistake book creation for exam preparation.

AI-powered PDF summarizationParallel language translationAudio-note synchronization

📊 Productivity

free with in-app purchases

JLPT Test: N5 Mock Exam

JLPT Test: N5 Mock Exam

JLPT Test: N5 Mock Exam

Practice Tests + Listening

Futureplus Prime

Futureplus Prime

Futureplus Prime

by WITSCLASS SOLUTIONS PRIVATE LIMITED

FAQ about N4Studies Plus

What are the best n4studies plus apps for iPhone?

n4Studies Plus tops our n4studies plus apps ranking as of September 2026, with a 3.0-star average from 1 App Store ratings, and it's priced at $7.99.

Are there free n4studies plus apps for iPhone?

Yes — 19 of the top n4studies plus apps we rank are free to download, including NU+: Northwestern Mobile and NC State Moodle.

Does n4Studies Plus have ads or in-app purchases?

n4Studies Plus has no ads and has no in-app purchases, according to its App Store listing as of September 2026.

How many n4studies plus apps are on the App Store?

We track 250+ n4studies plus apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is n4Studies Plus used for?

n4Studies Plus is designed to help users easily calculate the sample size and statistical power for a wide range of study designs. It covers various statistical methods like regression, survival analysis, and diagnostic studies, aiming to simplify these complex calculations.

Can n4Studies Plus calculate study power?

Yes, n4Studies Plus can calculate the statistical power of a study. This includes power calculations for comparing two population means and two population proportions, as well as for case-control studies, matched case-control studies, cohort studies, randomized controlled trials, non-inferiority trials, and equivalence trials.