# Gravity vs JIKARA

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.

Both are free to download. Gravity sells 6 in-app purchases, starting at $4.99 per month. JIKARA asks for nothing beyond the download.

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

## The numbers

| Metric | Gravity | JIKARA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (45 ratings)](https://appshunter.io/ios/app/gravity-language-immersion/id6769900394/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 69.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 110 MB | 130 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Heimdall Space Inc.](https://appshunter.io/developer/1896698357) | [AIKYO AI TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/6774169099) |

## 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 |


### JIKARA

[App page](https://appshunter.io/ios/app/jikara-jlpt-exam-prep/id6774169097)

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

**In-app purchases:** none


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