Comparison

Japanese Particle Trainer vs Gravity

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

Head to head
About

Japanese Particle Trainer

Master essential Japanese particles with interactive exercises. Learn meanings, practice sentence construction, and improve grammar for JLPT exams. Works offline and requires no account.

Highlights
  • Learn particle meanings and usage
  • Fill-in-the-blank sentence drills
  • Sentence building exercises
  • Grammar quizzes
  • JLPT grammar improvement
  • Offline functionality
Features
Read full description

Learn how to use Japanese particles correctly. Particles like は, が, を, に, and で are essential for building natural Japanese sentences. This app helps you understand their meanings and practice using them in real examples. Perfect for beginners, JLPT learners, and anyone struggling with Japanese grammar. Learn Common Japanese Particles Study clear explanations and examples for particles such as: は – topic marker が – subject marker を – object marker に – time and destination で – location of action へ – direction と – with / and も – also から – from まで – until Practice With Sentence Drills Fill-in-the-blank exercises help you choose the correct particle in context. Example: 私は ___ 学校に行きます Answer: は Build Sentences Drag words into the correct order to form natural Japanese sentences. Grammar Quizzes Test your understanding with multiple choice and listening exercises. Improve JLPT Grammar Skills Particles are heavily tested in JLPT N5 and N4. This app helps reinforce grammar patterns needed for reading and conversation. Start Reading Real Japanese Once you understand particles, practice reading real Japanese stories with vocabulary support on Yomikai. https://yomikai.com More Japanese Learning Apps Hiragana Practice – Learn Kana https://apps.apple.com/us/app/hiragana-practice-learn-kana/id6759808213 Katakana Practice – Learn Kana https://apps.apple.com/us/app/katakana-practice-learn-kana/id6759991781 Japanese Verb Conjugator https://apps.apple.com/us/app/japanese-verb-conjugator/id6759823197 JapanMate AI – Travel Assistant https://apps.apple.com/us/app/japanmate-ai/id6758231759 Works offline. No account required. Master Japanese particles today.

About

Gravity

Learn Japanese by capturing real-world text from your surroundings. This app creates personalized flashcards and study plans based on the vocabulary you encounter daily, making learning practical and context-driven.

Highlights
  • Personalized learning plans
  • Instant vocabulary extraction from photos
  • Smart review system
  • Context-based flashcards
  • Immersion-focused learning
  • Daily learning sessions
Features
Read full description

LEARN LANGUAGES THE FAST WAY - THROUGH VIDEOS! (Now with Mandarin Chinese support!) ◆ Learn Japanese and Mandarin Chinese through the content you already love. ◆ Gravity is an immersion-first language app that turns real videos and music into personalized learning. Doomscroll short native clips, sing along in Karaoke Mode, or pick something from a hand-curated library of native videos, each one transcribed word by word and levelled for learners. ◆ Whether you're into anime, J-pop, C-dramas, music, or YouTube creators, Gravity helps you build real language skills through context instead of generic textbook lessons. WHY CHOOSE GRAVITY? → Doomscroll to fluency: Moments turns scrolling into learning with a feed of short clips from native content. → Curated video library: native videos across anime, music, entertainment, creators, and more, levelled from complete beginner to advanced. → Word-synced transcripts: follow along word by word as the audio plays, with an English translation for every line that you can show or hide. → Karaoke Mode: follow the lyrics of songs you love, understand every line, and pick up vocabulary through music. → Tap to learn: tap any word for its reading, meaning, and an AI explanation, then save it in one tap. → Context-based flashcards: every saved word keeps the moment it came from, so you can replay the original clip while you review. → Smart spaced repetition: reviews are scheduled so each word comes back right before you'd forget it. → Practice right after watching: review the words you just saved as soon as you finish a video. → Daily word goals and reminders: stay consistent without overwhelming study sessions. BUILT FOR EACH LANGUAGE Japanese → Furigana, romaji, or no reading aids. Your choice. → Pitch accent graphs and dictionary meanings on every card. → Anime, J-pop, podcasts, streams, and more, levelled from Pre-JLPT to N1. Mandarin Chinese → Pinyin with tone marks, or turn it off. → Simplified characters, with traditional forms shown alongside. → C-dramas, music, and more, levelled from Pre-HSK to HSK 6. WHAT YOU'LL LEARN ◆ Real vocabulary and phrases, the way native speakers actually use them. ◆ Listening and reading skills through authentic videos, songs, and clips. ◆ Words from the shows, music, and creators you already watch. ◆ Language you'll actually hear, not just textbook examples. WHO IT'S FOR → Anime, J-pop, C-drama, and music fans who want to learn from what they already love. → Learners who already spend hours watching videos and scrolling online. → Travelers, international students, and people living or working abroad. → Busy learners who want immersion to fit naturally into their day. → Anyone tired of repetitive textbook lessons and overwhelming flashcard decks. HOW IT WORKS 1. Choose Japanese or Mandarin Chinese and your level. 2. Watch a video, scroll Moments, or sing along with a song. 3. Tap unfamiliar words to see what they mean and save them. 4. Gravity turns your saved words into flashcards, each linked to its original moment. 5. Review a few minutes a day and watch your known words grow. LEARN THROUGH WHAT YOU LOVE Doomscroll in the language you're learning. Watch videos. Sing your favorite songs. Gravity turns the content you already want to watch into something you can actually learn from. GRAVITY IS IN EARLY ACCESS. Any bugs, issues, or feedback can be directed to support@learngravity.com. Privacy: https://learngravity.com/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Japanese Particle Trainer4 screens
Gravity4 screens

Verdict

The call

The clearest difference is rating: Gravity at 4.1 against Japanese Particle Trainer's 1.0. Gravity also leads on ratings volume (39 vs 1). Japanese Particle Trainer's advantage is in-app purchases (none vs 6). On price, ads, device support and iOS requirement 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. Gravity sells 6 in-app purchases, starting at $4.99 per month. Japanese Particle Trainer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gravity holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Gravity has 39 ratings behind it against 1, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Japanese Particle Trainer versus Gravity: the parameters behind the verdict, then further details
ParameterJapanese Particle TrainerGravity
PriceFreeFree
Rating1.0 (1 ratings)4.1 (39 ratings) — better
Positive reviews—69.0% of reviews
Number of ratings139 — better
Update frequency—Every 9 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.1
Further details — not scored
Size42 MB109 MB
Age rating4+4+
DeveloperIAN PATRICK MAHONEYHeimdall Space Inc.

In-app purchases

None

Japanese Particle Trainer

No in-app purchases

6 purchases

Gravity

Subscriptions6
  • special offer$4.991 Month
  • Fluency$6.997 Days
  • Immersive Monthly7 Days trial$8.991 Month
Show 3 more
  • Immersive Monthly7 Days trial$11.991 Month
  • Immersion7 Days trial$14.991 Month
  • Polyglot7 Days trial$69.991 Year

Questions

Is Japanese Particle Trainer free?
Japanese Particle Trainer is free to download, with no in-app purchases.
Is Gravity free?
Gravity is free to download, with in-app purchases available.
Which has better reviews, Japanese Particle Trainer or Gravity?
Gravity is rated higher. Japanese Particle Trainer averages 1.0 out of 5 from 1 ratings, while Gravity averages 4.1 from 39 ratings.
Do Japanese Particle Trainer or Gravity have ads?
Neither Japanese Particle Trainer nor Gravity shows ads.

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