Comparison

Math Interactive vs Nihongo Lessons

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

Head to head
About

Math Interactive

Enhance your mathematical understanding with a comprehensive reference covering 23 subjects, over 200 articles, and interactive illustrations. Explore detailed explanations, solved problems, and proofs to master concepts from algebra to calculus. Access all content and features with a premium upgrade.

Highlights
  • 23 math subjects covered
  • Over 200 articles with detailed descriptions
  • Solved solutions and thorough proofs
  • Interactive illustrations for better understanding
  • Quick search for articles and formulas
  • Recents category to pick up where you left off
  • Share articles via social media and messaging
Features
Read full description

Improve your math skills and get a deeper understanding of mathematical concepts, definitions, formulas and proofs. With 23 subjects containing more than 200 articles with detailed descriptions, solved solutions and thorough proofs, this app is perfect for every high school student or any person eager to learn mathematics. Improve your intuition by exploring the interactive illustrations and learn how to solve both simple and difficult math problems through elegant solutions. Buy Premium to access all content and features. • Quickly search for the article or formula you need. • Use the links to read more on a subject. • Improve your understanding with interactive illustrations. • Pick up where you left off with the "Recents"-category. • Share an article via mail, iMessage, Facebook etc. • Jump to any section through the bottom navigation. • Enjoy the graceful and user-friendly design. The app covers the following 23 subjects: • Coordinate System • Differential Calculus • Differential Equations • Exponential Functions • Functions • Geometry • Geometry Terms • Hypothesis Testing • Integral Calculus • Linear Functions • Numbers and Algebra • Percentages • Power Functions • Probability • Quadratic Equation • Quadratic Polynomial • Regression and Growth • Solid Geometry • Statistics • The Straight Line • Trigonometry • Vectors in 2D • Vectors in 3D Space

About

Nihongo Lessons

This app helps learners of all levels achieve Japanese fluency. It uses a flashcard format to teach vocabulary, grammar, and writing systems, with advanced spaced repetition for effective retention. Content is sourced from real manga for advanced learners.

Highlights
  • Learn Hiragana and Katakana
  • 7000+ handcrafted sentences
  • Professional voice actor audio
  • Advanced Spaced Repetition System (SRS)
  • Vocabulary and grammar from manga
  • Flashcard learning format
Features
Read full description

A new app for people serious about becoming fluent in Japanese, from the maker of Nihongo: a modern Japanese dictionary. Nihongo Lessons is based off the excellent Japanese Level Up (Jalup) series, and is made to help all levels of learners. * If you're a complete beginner, the app starts you off by teaching you to write the Japanese alphabets hiragana and katakana, and then quickly starts building your vocabulary and grammar fundamentals. * If you're at an intermediate level, you can jump into content that will help you grow your Japanese grammar, vocabulary, and listening skills more efficiently than ever before. * If you're an advanced learner diving into the world of native content or studying for JLPT N1, Nihongo Lessons can help fill in the gaps in your knowledge with vocabulary and grammar pulled directly from real manga. Instead of a traditional textbook, everything in Nihongo Lessons is in a flashcard format. Flashcards are easier to take in, easier to know how much to learn and how often to review, and simplify the mountain of information you need to absorb. Each flashcard introduces one new sentence for you to understand, and every new sentence introduces exactly one new word, grammar point, or concept. This keeps you constantly moving forward in your learning journey - never bored, never overwhelmed. * Learn to write hiragana and katakana, the main alphabets of the Japanese language. * Progress from beginner to fluent across 7000 handcrafted sentences, each introducing a single new word or concept. * Listen to sentences spoken out loud by a professional voice actor. * Advanced Spaced Repetition (SRS) to help you retain everything you've learned for the long-term. * Nihongo Lessons doesn’t just plop a fun game on top of the language. It engages the brain’s natural urge to solve problems by making learning the language itself the game.

Screenshots

Math Interactive4 screens
Nihongo Lessons4 screens

Verdict

The call

The clearest difference is update cadence: Nihongo Lessons at every 3 weeks against Math Interactive's every 13 months. Nihongo Lessons also leads on review sentiment (85% vs 58%) and rating (4.8 vs 4.6). Math Interactive's advantage is ratings volume (726 vs 126) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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. Math Interactive sells 1 one-off in-app purchase and Nihongo Lessons sells 13 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Nihongo Lessons holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Math Interactive has 726 ratings behind it against 126, so its average is the more settled of the two. Written reviews point the same way: 58% of Math Interactive's written reviews are positive against 85% of Nihongo Lessons's.

UpkeepUpdate frequency

Math Interactive ships an update every 13 months, Nihongo Lessons every 3 weeks. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
Math Interactive versus Nihongo Lessons: the parameters behind the verdict, then further details
ParameterMath InteractiveNihongo Lessons
PriceFreeFree
Rating4.6 (726 ratings)4.8 (126 ratings) — better
Positive reviews58.3% of reviews84.8% of reviews — better
Number of ratings726 — better126
Update frequencyEvery 13 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17
Further details — not scored
Size46 MB258 MB
Age rating4+4+
DeveloperRune Johannes Overgaard HoejlundSerpenti Sei Japan

Customer experience

Math Interactive

All ratings726 ratings
Positive90.6%
Neutral2.5%
Negative6.9%
Written reviews60 reviews
Positive58.3%
Neutral3.3%
Negative38.3%

Nihongo Lessons

All ratings126 ratings
Positive94.4%
Neutral2.4%
Negative3.2%
Written reviews33 reviews
Positive84.8%
Neutral6.1%
Negative9.1%

Bugs and requests

Math Interactive

Reported bugs

2 issues
  • Incorrect formulas and calculations
  • Compatibility issues with newer iOS versions

Requested features

4 requests
  • Add more advanced math topics like calculus, matrices, etc.
  • Include step-by-step solutions and more interactive elements
  • Improve organization and flow of content
  • Provide more real-world examples and applications

Nihongo Lessons

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Math Interactive

One-time1
  • Premium$2.99
13 purchases

Nihongo Lessons

Subscriptions2
  • All Access Monthly7 Days trial$4.991 Month
  • All Access Yearly7 Days trial$49.991 Year
One-time11
  • Beginner Deck (Discounted)$59.99
  • Champion Deck (Discounted)$59.99
  • Expert Deck (Discounted)$59.99
Show 8 more
  • Master Deck (Discounted)$59.99
  • Intermediate Deck (Discounted)$83.99
  • Beginner Deck (Discounted)$101.99
  • Beginner Deck$119.99
  • All Decks (Discounted)$149.99
  • All Decks (Discounted)$254.99
  • All Decks$299.99
  • All Decks (Discounted)$299.99

Questions

Is Math Interactive free?
Math Interactive is free to download, with in-app purchases available.
Is Nihongo Lessons free?
Nihongo Lessons is free to download, with in-app purchases available.
Which has better reviews, Math Interactive or Nihongo Lessons?
Nihongo Lessons is rated higher. Math Interactive averages 4.6 out of 5 from 726 ratings, while Nihongo Lessons averages 4.8 from 126 ratings.
Do Math Interactive or Nihongo Lessons have ads?
Neither Math Interactive nor Nihongo Lessons shows ads.
Which is updated more often, Math Interactive or Nihongo Lessons?
Math Interactive ships an update every 13 months, and Nihongo Lessons every 3 weeks. Most recently, Math Interactive was updated on September 29, 2026 and Nihongo Lessons on October 9, 2026.

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