# Immersion Reader vs リーダー

The clearest difference is rating: リーダー at 5.0 against Immersion Reader's 4.0. リーダー also leads on review sentiment (100% vs 62%) and in-app purchases (none vs 1). Immersion Reader's advantage is update cadence (every 6 days vs every 5 weeks) and ratings volume (26 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Immersion Reader sells 1 one-off in-app purchase. リーダー asks for nothing beyond the download.

リーダー holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Immersion Reader has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 62% of Immersion Reader's written reviews are positive against 100% of リーダー's.

Immersion Reader ships an update every 6 days, リーダー every 5 weeks. The most recent releases landed on October 1, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Immersion Reader | リーダー |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (26 ratings)](https://appshunter.io/ios/app/immersion-reader/id6443721334/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6747406845/reviews)** |
| Number of ratings | **26** | 1 |
| Positive reviews | 61.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 4 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mathew Chan](https://appshunter.io/developer/1441199099) | [REULP](https://appshunter.io/developer/1767099099) |

## What reviewers say

### Immersion Reader

[App page](https://appshunter.io/ios/app/immersion-reader/id6443721334)

Easily look up Japanese words while reading ebooks with a single tap. Import custom dictionaries and export saved vocabulary for spaced repetition learning. Offers customizable themes for a comfortable reading experience.

**Highlights:** One-tap word lookup in Japanese ebooks, Import Yomichan and frequency dictionaries, Export vocabulary to Anki, Light and dark mode themes, Lookup neighboring words

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Immersion Reader Premium | $4.99 | one-time |


### リーダー

[App page](https://appshunter.io/ios/app/id6747406845)

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

**In-app purchases:** none


## Frequently asked questions

### Is Immersion Reader free?

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

### Is リーダー free?

リーダー is free to download, with no in-app purchases.

### Which has better reviews, Immersion Reader or リーダー?

リーダー is rated higher. Immersion Reader averages 4.0 out of 5 from 26 ratings, while リーダー averages 5.0 from 1 ratings.

### Do Immersion Reader or リーダー have ads?

Neither Immersion Reader nor リーダー shows ads.

### Which is updated more often, Immersion Reader or リーダー?

Immersion Reader ships an update every 6 days, and リーダー every 5 weeks. Most recently, Immersion Reader was updated on October 1, 2026 and リーダー on September 13, 2026.

---

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