# Gravity - Japanese Immersion — Japanese Videos & Flashcards

> Personalized Japanese learning app using real-world text and contextual flashcards. (iPhone/iPad app by Heimdall Space Inc..)

- Source: https://appshunter.io/ios/app/gravity-japanese-immersion/id6769900394 (this page in markdown: same URL + `.md`)
- Developer: [Heimdall Space Inc.](https://appshunter.io/developer/1896698357)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 3.50/5 from 11 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 100 MB
- Languages: American English
- Released: 2026-06-16
- Data updated: 2026-09-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/gravity-japanese-immersion/id6769900394/reviews.md

## What is Gravity?

ABOUT THIS APP

◆ Learn Japanese through the content you already love.
◆ Gravity is an immersion-first Japanese learning app that turns videos, music, and real-world Japanese into personalized learning experiences. Doomscroll through Japanese content, sing along with your favorite songs in Karaoke Mode, explore a massive library of Japanese videos, or capture Japanese from the world around you.
◆ Whether you’re learning through anime, YouTube, J-pop, manga, travel, or everyday life, Gravity helps you build real Japanese through context instead of generic textbook lessons.

WHY CHOOSE GRAVITY?

→ Doomscroll Japanese: turn scrolling into learning with an endless feed of Japanese videos built for immersion.
→ Massive video library: learn from Japanese videos across anime, entertainment, podcasts, creators, music, and more.
→ Karaoke Mode: follow along with Japanese songs, understand the lyrics, and learn vocabulary through music you already love.
→ Tap-to-learn videos: instantly look up words while watching and save useful vocabulary for later.
→ Personalized learning: Gravity adapts to the Japanese you watch, save, and encounter.
→ Instant vocabulary extraction: turn photos and screenshots into study material in seconds.
→ Context-based flashcards: remember words through the original videos, sentences, and situations where you found them.
→ Smart review system: focus on the vocabulary most relevant to you.
→ Daily learning plans: stay consistent with manageable study sessions tailored to your progress.

WHAT YOU'LL LEARN

◆ Real Japanese vocabulary and phrases used in videos, music, conversations, and everyday life.
◆ Listening and reading skills through authentic Japanese content.
◆ Vocabulary from anime, YouTube, J-pop, manga, signs, menus, and screenshots.
◆ Common expressions for travel, school, work, restaurants, shopping, and conversations.
◆ Personalized vocabulary based on your interests and the content you consume.
◆ Japanese you’ll actually encounter — not just textbook examples.

WHO IT'S FOR

→ Anime, manga, J-pop, and Japanese media fans.
→ Learners who already spend hours watching videos and scrolling online.
→ Travelers preparing for Japan.
→ International and exchange students.
→ People living or working in Japan.
→ Busy learners who want Japanese immersion to fit naturally into their day.
→ Anyone tired of repetitive textbook lessons and overwhelming flashcard decks.

HOW IT WORKS

1. Choose a Japanese video, song, or piece of real-world content.
2. Watch, scroll, or sing along while Gravity helps you understand the Japanese.
3. Tap unfamiliar words to learn them instantly and save them to your vocabulary.
4. Gravity turns what you encounter into personalized flashcards and reviews.
5. Keep immersing, and your learning experience becomes more personalized over time.

LEARN JAPANESE THROUGH WHAT YOU LOVE

Doomscroll Japanese. Watch videos. Sing your favorite songs. Explore anime, YouTube, and real-world content.

Gravity turns the Japanese you already want to consume into something you can actually learn from.

**GRAVITY IS IN EARLY ACCESS.**
Any bugs, issues, or feedback can be directed to [support@learngravity.com](mailto:support@learngravity.com).

Privacy: https://learngravity.com/privacy
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Personalized learning plans
- Instant vocabulary extraction from photos
- Smart review system
- Context-based flashcards
- Immersion-focused learning
- Daily learning sessions

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Immersion | $6.99 | per month |
| Polyglot | $49.99 | per year |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/gravity-japanese-immersion/id6769900394/reviews.md

### 1/5 — Can't use the app

*2026-09-06*

Crashed three times in a row

### 1/5 — Blast off bug

*2026-09-01*

Just downloaded and all i see is “blast off”.

**Developer response:** Hi Eve, we’re very sorry you had this experience. A fix is now available in version 2.4.0, please update
Gravity and try again. Also, please email us at support@learngravity.com; we’d really like to make up for the bad experience!

### 1/5 — Frozen

*2026-08-28*

Downloaded today. App shows “Blast Off” and never changes screen. Regardless of taps or shakes and no other prompts to do anything different.

**Developer response:** Hi there, a fix is now available in the latest version, 2.4.0. Please update Gravity and try again. As an apology for the bad experience, please email us at support@learngravity.com, we’d really like to make this right.

### 5/5 — Helpful

*2026-08-10*

Very applicable way to learn a new language. I’ve attempted multiple times through different means and find it a struggle to make the time but this app has allowed me to learn while doing the things I already do every day and I’m finding it very helpful. 10000 stars.

### 5/5 — PEAK

*2026-08-08*

Not only is a lot of the content extremely entertaining but it is also very useful for learning Japanese. A lot of the videos that are dedicated to teaching on there are very informative and easy to understand. I love the way that they have the subtitles because it is large and easy to read in my phone and it shows the individual meaning of each word not just the big idea, that helps with understanding sentence structure. It can be a little glitchy sometimes and it did rage bait me once but I quickly realized that pausing it and playing it fixed whatever problem I was having. Overall really good but ngl they should make it free🌝

### 5/5 — Useful learning app!

*2026-07-26*

Interesting app, I like that I can watch any type of Japanese content and choose which words I want to learn. There's also a doomscrolling feature which is a little buggy at times but is nice to watch short clips during my morning commute while still learning Japanese

### 5/5 — Great language learning app

*2026-07-24*

This app is helpful and I’ve been using it daily to learn Japanese.

### 5/5 — Fun and Awesome

*2026-07-23*

Being a new Japanese learner this has been a great way to learn and has good immersion which helps keep the memory and comprehension high!

### 5/5 — Feeling the gravity 🌏💫

*2026-06-27*

Really loving the app so far! It makes reviewing flashcards fun while offering a more focused learning experience than duolingo. Also like that you can take photos to capture aspects of your own life, making it feel like a personalized dictionary and language diary.

## Frequently asked questions about Gravity

### How does Gravity help me learn Japanese?

Gravity helps you learn Japanese by turning real-world text from photos and screenshots into personalized flashcards and study plans. This contextual approach focuses on vocabulary you actually encounter, making learning more practical and relevant to your daily life.

### What kind of Japanese content can I use with Gravity?

You can use content from menus, signs, manga, subtitles, conversations, screenshots, and any everyday Japanese text you encounter. The app is designed to extract vocabulary from diverse real-world sources.

### Does Gravity offer different subscription plans?

Yes, Gravity offers two subscription plans: Immersion at $6.99 per month with a 7-day free trial, and Polyglot at $49.99 per year with a 7-day free trial. These plans provide access to enhanced learning features.

### How often is Gravity updated?

Gravity was last updated on August 3, 2026, with version 2.2.1. The app is currently in early access, suggesting ongoing development and frequent updates to improve features and address issues.

### What devices is Gravity available on?

Gravity is currently supported on iPhone and iPod devices. The app is designed for iOS users looking to learn Japanese on the go.

### What is the age rating for Gravity?

Gravity has an age rating of 4+, making it suitable for a wide range of learners. This indicates that the content and learning methods are appropriate for younger and older users alike.

### How does Gravity's review system work?

Gravity features a smart review system that prioritizes the most useful and frequently encountered words first. This ensures that your study time is focused on vocabulary that will have the greatest impact on your comprehension and fluency.

### Can I track my progress with Gravity?

Yes, you can track your progress over time with Gravity. The app provides daily learning plans tailored to your progress and goals, allowing you to monitor your development as you learn Japanese.

## Version history (last 5 releases)

### 2.4.2 — 2026-09-07

Keep learning across devices
Save videos and find them again after signing in, with bookmarks now synced to your account.
Move through videos, Moments, and Karaoke more smoothly with better transcript scrolling, lyric timing, loading, and tap targets.
Get back into Gravity more reliably with improved email verification and password recovery, including cross-device recovery flows.

### 2.4.1 — 2026-09-03

- Smoother Media and Moments playback
- Look up words without losing your place
- More reliable transcript interactions
- Improved Media loading and recovery
- Stronger account security

### 2.4.0 — 2026-09-01

Smoother learning everywhere
- Follow Japanese videos and Moments with clearer transcript markers, better word definitions, and steadier playback.
- Practice kana, flashcards, and word collections with improved feedback, haptics, and lesson summaries.
- Enjoy cleaner transitions, more reliable sign-in, smarter startup recovery, and fixes for word saving, audio, and dictionary lookups.

### 2.3.1 — 2026-08-23

Meet the new Gravity, with a refreshed IO mascot, brighter colors and updated icons.
• Capture now lives on Home, and Study helps you find words when your list is empty.
• Browse Media with better search, clearer transcripts and smoother navigation.
• Enjoy a redesigned streak celebration, cleaner account screens, more reliable sessions and improved pronunciation.
• Gravity is now subscription-only, with full transcripts, unlimited Moments and captures, and every word collection.

### 2.3.0 — 2026-08-14

Build your momentum
  - Sing along with Karaoke using synchronized lyrics and smoother transcript highlighting.
  - Discover more reliable Moments with faster loading and improved feed continuity.
  - Grow your streak through Word Hunt and see progress immediately after saving a word.
  - Choose a daily word goal that fits your pace and track your active learning days.
  - Manage saved words with faster library counts and more responsive updates.
  - Enjoy adaptive iPad layouts, smoother navigation, and more reliable practice sessions.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*