# Immersion Reader vs Suikō

The clearest difference is rating: Suikō at 5.0 against Immersion Reader's 4.0. Immersion Reader's advantage is ratings volume (27 vs 1) and update cadence (every 6 days vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Immersion Reader sells 1 one-off in-app purchase and Suikō sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Suikō holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Immersion Reader has 27 ratings behind it against 1, so its average is the more settled of the two.

Immersion Reader ships an update every 6 days, Suikō every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Immersion Reader | Suikō |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (27 ratings)](https://appshunter.io/ios/app/immersion-reader/id6443721334/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/suiko-japanese-journal/id6812552129/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 61.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 80 MB | 2 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mathew Chan](https://appshunter.io/developer/1441199099) | [TIMOTHY HUANG](https://appshunter.io/developer/6812552131) |

## 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 |


### Suikō

[App page](https://appshunter.io/ios/app/suiko-japanese-journal/id6812552129)

Practice Japanese writing with AI-powered feedback on grammar, particles, and word choice. Fix mistakes yourself to internalize learning. Features daily prompts, writing streaks, and an archive of all your entries.

**Highlights:** AI grammar and word choice feedback, Self-correction of mistakes, Daily writing prompts, Writing streak tracking, Journal archive and search, Vertical and horizontal writing options

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Editor, monthly | $9.99 | per month |
| The Editor, yearly | $99.99 | per year |


## Frequently asked questions

### Is Immersion Reader free?

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

### Is Suikō free?

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

### Which has better reviews, Immersion Reader or Suikō?

Suikō is rated higher. Immersion Reader averages 4.0 out of 5 from 27 ratings, while Suikō averages 5.0 from 1 ratings.

### Do Immersion Reader or Suikō have ads?

Neither Immersion Reader nor Suikō shows ads.

### Which is updated more often, Immersion Reader or Suikō?

Immersion Reader ships an update every 6 days, and Suikō every 3 weeks. Most recently, Immersion Reader was updated on October 24, 2026 and Suikō on October 29, 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.*