Comparison

Gravity vs JIKARA

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

Head to head
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/

About

JIKARA

Features
Read full description

JIKARA is a complete Japanese learning app built around JLPT exam preparation, from absolute beginner N5 to advanced N1. JLPT MOCK TESTS - Full-length practice tests for all 5 JLPT levels (N5, N4, N3, N2, N1) - Pass prediction and score analysis - Skill domain breakdown: vocabulary, grammar, reading, listening - Test history to track your improvement over time VOCABULARY - 10,000+ JLPT-tagged words with audio pronunciation - Smart SRS spaced repetition review - Track mastery from new to mastered for every word KANJI - All 2,268 JLPT kanji with stroke order animations - On/kun readings, meanings, and example sentences - Level-tagged N5 through N1 GRAMMAR - 840+ grammar patterns organized by JLPT level - Grammar drills with AI evaluation - Track mastery percentage per pattern KANA - Complete Hiragana and Katakana charts with audio - Stroke order guides for every character DICTIONARY - Full offline Japanese dictionary - Conjugation tables, kanji breakdown, example sentences AI SPEAKING PRACTICE - Speak with an AI tutor in real-life Japanese scenarios - Instant pronunciation and grammar correction - 200 structured conversation lessons aligned with JLPT curriculum FREE AND PRO Free: N5 level, first 5 lessons, 1 session per day Pro: All levels N5 to N1, all 200 lessons, unlimited practice, full test analysis Your complete JLPT companion - from first kanji to exam day.

Screenshots

Gravity4 screens
JIKARA4 screens

Verdict

The call

The clearest difference is in-app purchases: JIKARA at none against Gravity's 6. Gravity's advantage is ads (none vs shown) and device support (3 vs 1). On price, update cadence 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. JIKARA asks for nothing beyond the download.

UpkeepUpdate frequency

Gravity ships an update weekly, JIKARA every 9 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Gravity versus JIKARA: the parameters behind the verdict, then further details
ParameterGravityJIKARA
PriceFreeFree
Rating4.2 (45 ratings) — better—
Positive reviews69.0% of reviews—
Number of ratings45 — better—
Update frequencyWeekly — betterEvery 9 days
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.0
Further details — not scored
Size110 MB130 MB
Age rating4+17+
DeveloperHeimdall Space Inc.AIKYO AI TECHNOLOGIES PRIVATE LIMITED

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
None

JIKARA

No in-app purchases

Questions

Is Gravity free?
Gravity is free to download, with in-app purchases available.
Is JIKARA free?
JIKARA is free to download, with no in-app purchases.
Do Gravity or JIKARA have ads?
JIKARA shows ads; Gravity does not.
Which is updated more often, Gravity or JIKARA?
Gravity ships an update weekly, and JIKARA every 9 days. Most recently, Gravity was updated on November 5, 2026 and JIKARA on October 31, 2026.

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