# Gravity vs Mojien

The clearest difference is iOS requirement: Mojien at 13.0 against Gravity's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Gravity sells 6 in-app purchases, starting at $4.99 per month and Mojien sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Gravity | Mojien |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (46 ratings)](https://appshunter.io/ios/app/gravity-language-immersion/id6769900394/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 70.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 112 MB | 261 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Heimdall Space Inc.](https://appshunter.io/developer/1896698357) | [Mojien Inc.](https://appshunter.io/developer/6774855880) |

## 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 |


### Mojien

[App page](https://appshunter.io/ios/app/mojien-learn-japanese/id6774855878)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mojien Pro (Monthly) | $7.99 | per month |
| Mojien Pro (Annual) | $54.99 | per year |
| Mojien Pro (Lifetime) | $149.99 | one-time |


## Frequently asked questions

### Is Gravity free?

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

### Is Mojien free?

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

### Do Gravity or Mojien have ads?

Neither Gravity nor Mojien shows ads.

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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.*