Comparison

Learning Vietnamese vs Japanese Reflex

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

Head to head
About

Learning Vietnamese

This app helps beginners learn Vietnamese with lessons on the alphabet, common words, and phrases. It includes native speaker audio, fun quizzes, and an MP3 player-like interface for easy sound repetition and navigation.

Highlights
  • Alphabet and word lessons
  • Common phrases and conversations
  • Native speaker audio recordings
  • Interactive quizzes
  • MP3 player-style audio controls
Features
Read full description

From the basic alphabets, to common words and phrases, this app is all you need to get started learning Vietnamese. Features: - Designed for beginners learning Vietnamese - Native speaker records : the alphabet, new words, some necessary conversation - Fun quizzes for each topic - Runnig as mp3 player, you can easily learn sounds with "repeat button", "next",...

About

Japanese Reflex

Train your brain for instant Japanese comprehension and response. This app focuses on audio-driven drills to build automatic recognition of grammar, vocabulary, and spoken Japanese, moving beyond traditional memorization.

Highlights
  • Instant grammar pattern recognition
  • Process spoken Japanese at speed
  • Automatic particle and sentence role identification
  • Intuitive verb form understanding
  • Real-world expression mastery
  • Audio-first listening comprehension
  • Performance tracking and speed analysis
Features
Read full description

Stop translating Japanese in your head. Start processing it automatically. Japanese Reflex uses fast, interactive drills to develop your Japanese Brain—the mental pathways that let you understand Japanese directly, without translating everything into English first. Traditional study can teach you thousands of words and grammar points, but knowledge alone does not guarantee fast processing. Even learners who have passed JLPT N2 or N1 may still struggle to follow conversations or respond without hesitation. Japanese Reflex bridges that gap. It is more than a vocabulary or grammar app—it is a reflex training system that turns what you know into fast, automatic Japanese ability. BUILD YOUR JAPANESE REFLEXES Short, audio-driven drills train you to: • Recognize grammar patterns instantly • Process spoken Japanese at conversational speed • Identify particles and sentence roles automatically • Understand verb forms without conscious translation • Distinguish transitive and intransitive verbs • Navigate conditionals, requests, keigo, and nuance • Respond based on meaning instead of memorized rules Each drill challenges you to make quick, accurate decisions, moving Japanese processing from slow and conscious to fast and intuitive. MEASURE YOUR JAPANESE BRAIN Japanese Reflex includes 26 Reflex Drills targeting critical—and often difficult—grammar and meaning patterns. Every completed drill gives you a Reflex Score combining accuracy and response speed. The app averages your five most recent scores across all 26 drills to calculate your overall Japanese Brain Score: a measure of real-time Japanese processing ability ranging from 0 to 105. Your goal is to raise your Japanese Brain Score above 90—the level where processing and understanding Japanese become fast, intuitive, and automatic. ADAPTIVE PRACTICE Adaptive Practice identifies the specific grammar skills and meaning patterns giving you trouble, then gives you extra practice with those weaker areas. Each session adapts to your performance and continues working on difficult skills until you can answer correctly and consistently—helping turn weak points into automatic reflexes. MASTER YOUR MISSES Master Your Misses creates focused review sets from questions you answered incorrectly. Work directly on your weak points until the correct response becomes automatic. CHALLENGE FRIENDS Create custom challenges, invite friends, and compete on leaderboards. Whether you are preparing for the JLPT, living in Japan, or studying with classmates, Challenges make consistent practice more engaging. TRY IT FREE Start with free access to every Reflex Drill. Create a free account for additional practice time, cloud sync, challenges, and personalized progress tracking. Upgrade to Premium for unlimited Reflex Drill training. Optional JLPT vocabulary and grammar packages can be purchased separately. No subscriptions. No ads. Every purchase is yours to keep. KEY FEATURES • 26 fast, interactive Reflex Drills • Training for particles, sentence roles, verb forms, conditionals, keigo, and more • Reflex Scores measuring accuracy and response speed • Overall Japanese Brain Score from 0 to 105 • Adaptive Practice targeting specific weak skills • Master Your Misses focused review • Japanese Brain Vocabulary study • Customizable audio reviews and self-assessment quizzes • Friend challenges and leaderboards • Cloud sync and personalized progress tracking WHO IT’S FOR • Learners stuck translating Japanese in their heads • Intermediate and advanced learners who know Japanese but cannot process it quickly • Beginners who want to build strong foundations • Anyone preparing for the JLPT • Professionals, students, and residents in Japan • Busy learners who want efficient, focused practice • Anyone who wants to understand Japanese in real time Knowing Japanese is not the same as processing it automatically. Train your Japanese Brain. Build real reflexes. Understand Japanese faster.

Screenshots

Learning Vietnamese4 screens
Japanese Reflex4 screens

Verdict

The call

The clearest difference is review sentiment: Learning Vietnamese at 100% against Japanese Reflex's 0%. Japanese Reflex's advantage is update cadence (fortnightly vs every 6 weeks) and iOS requirement (15.1 vs 17.0). 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. Learning Vietnamese sells 1 one-off in-app purchase and Japanese Reflex sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Learning Vietnamese ships an update every 6 weeks, Japanese Reflex fortnightly. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Learning Vietnamese versus Japanese Reflex: the parameters behind the verdict, then further details
ParameterLearning VietnameseJapanese Reflex
PriceFreeFree
Rating—3.0 (1 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size111 MB53 MB
Age rating4+4+
DeveloperNhung SellyShem LAWLOR

Customer experience

Learning Vietnamese

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Japanese Reflex

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

1 purchases

Learning Vietnamese

One-time1
  • Premium$4.99
3 purchases

Japanese Reflex

One-time3
  • JLPT N1 Vocabulary$11.99
  • JLPT N1 Grammar$11.99
  • Full Access Unlock$22.99

Questions

Is Learning Vietnamese free?
Learning Vietnamese is free to download, with in-app purchases available.
Is Japanese Reflex free?
Japanese Reflex is free to download, with in-app purchases available.
Do Learning Vietnamese or Japanese Reflex have ads?
Neither Learning Vietnamese nor Japanese Reflex shows ads.
Which is updated more often, Learning Vietnamese or Japanese Reflex?
Learning Vietnamese ships an update every 6 weeks, and Japanese Reflex fortnightly. Most recently, Learning Vietnamese was updated on October 24, 2026 and Japanese Reflex on October 9, 2026.

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