# Gravity vs Mimi

The clearest difference is rating: Mimi at 5.0 against Gravity's 4.1. Mimi also leads on update cadence (every 2 days vs every 9 days). Gravity's advantage is ads (none vs shown) and ratings volume (39 vs 1). On price, 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 Mimi sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Mimi holds the better App Store score, 5.0 against 4.1. 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.

Gravity ships an update every 9 days, Mimi every 2 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gravity | Mimi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (39 ratings)](https://appshunter.io/ios/app/gravity-language-immersion/id6769900394/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mimi-learn-japanese/id6815067746/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 69.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 109 MB | 97 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Heimdall Space Inc.](https://appshunter.io/developer/1896698357) | [Loch Partners LLC](https://appshunter.io/developer/6804798815) |

## What reviewers say

### Gravity

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

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:** 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 |


### Mimi

[App page](https://appshunter.io/ios/app/mimi-learn-japanese/id6815067746)

Learn Japanese through real-world video clips, from anime to news. This app matches content to your JLPT level, offering natural listening practice. Unlock advanced features like live transcripts and tap-to-translate with a Pro subscription.

**Highlights:** Learn with real video clips, Content matched to JLPT levels, Live transcript and translation (Pro), Tap-to-translate word meanings (Pro), Save words for flashcard practice (Pro), Bite-sized learning sessions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mimi Pro Monthly | $9.99 | per month |
| Mimi Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is Gravity free?

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

### Is Mimi free?

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

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

Mimi is rated higher. Gravity averages 4.1 out of 5 from 39 ratings, while Mimi averages 5.0 from 1 ratings.

### Do Gravity or Mimi have ads?

Mimi shows ads; Gravity does not.

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

Gravity ships an update every 9 days, and Mimi every 2 days. Most recently, Gravity was updated on November 1, 2026 and Mimi 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.*