# Gravity vs Kitsugo

The clearest difference is rating: Kitsugo at 5.0 against Gravity's 4.2. Gravity's advantage is ratings volume (45 vs 2) and update cadence (weekly vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Gravity sells 6 in-app purchases, starting at $4.99 per month and Kitsugo sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Kitsugo holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Gravity has 45 ratings behind it against 2, so its average is the more settled of the two.

Gravity ships an update weekly, Kitsugo every 2 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gravity | Kitsugo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (45 ratings)](https://appshunter.io/ios/app/gravity-language-immersion/id6769900394/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kitsugo-learn-japanese/id6783153125/reviews)** |
| Number of ratings | **45** | 2 |
| Positive reviews | 68.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 112 MB | 82 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Heimdall Space Inc.](https://appshunter.io/developer/1896698357) | [Sprowlsware LLC](https://appshunter.io/developer/6783153127) |

## What reviewers say

### Gravity

[App page](https://appshunter.io/ios/app/gravity-language-immersion/id6769900394)

Learn Japanese and Mandarin Chinese through authentic videos and music. This immersion-first app uses real content, word-synced transcripts, and interactive flashcards to build practical language skills. Enjoy personalized learning tailored to your interests, from anime to C-dramas.

**Highlights:** Learn through native videos and music, Word-synced transcripts with translations, Interactive flashcards with spaced repetition, Karaoke Mode for song-based learning, Personalized learning feed, Supports Japanese and Mandarin Chinese

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| special offer | $4.99 | per month |
| Fluency | $6.99 | per 7 days |
| Immersive Monthly | $8.99 | per month |
| Immersive Monthly | $11.99 | per month |
| Immersion | $14.99 | per month |
| Polyglot | $69.99 | per year |


### Kitsugo

[App page](https://appshunter.io/ios/app/kitsugo-learn-japanese/id6783153125)

Master Japanese with structured, bite-sized lessons covering vocabulary, grammar, and kanji. Prepare for JLPT exams with comprehensive courses and practice quizzes. Learn hiragana, katakana, and improve listening and reading skills.

**Highlights:** Structured JLPT-aligned courses, Vocabulary and Kanji learning, Grammar explanations with examples, Listening and reading comprehension, JLPT-style practice quizzes, Built-in Japanese dictionary, Progress tracking and streaks

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kitsugo Premium (Monthly) | $9.99 | per month |
| Kitsugo Premium (Annual) | $79.99 | per year |


## Frequently asked questions

### Is Gravity free?

Gravity is free to download, with in-app purchases available.

### Is Kitsugo free?

Kitsugo is free to download, with in-app purchases available.

### Which has better reviews, Gravity or Kitsugo?

Kitsugo is rated higher. Gravity averages 4.2 out of 5 from 45 ratings, while Kitsugo averages 5.0 from 2 ratings.

### Do Gravity or Kitsugo have ads?

Neither Gravity nor Kitsugo shows ads.

### Which is updated more often, Gravity or Kitsugo?

Gravity ships an update weekly, and Kitsugo every 2 weeks. Most recently, Gravity was updated on November 7, 2026 and Kitsugo on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*