# Animaths vs Immersion Reader

The clearest difference is price: Immersion Reader at Free against Animaths's $3.99. Immersion Reader also leads on update cadence (every 6 days vs every 40 months) and iOS requirement (13.0 vs 18.0). Animaths's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Immersion Reader is free to download; Animaths costs $3.99 up front. Immersion Reader sells 1 one-off in-app purchase. Animaths asks for nothing beyond the download.

Animaths ships an update every 40 months, Immersion Reader every 6 days. The most recent releases landed on September 11, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Animaths | Immersion Reader |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.0 (26 ratings)](https://appshunter.io/ios/app/immersion-reader/id6443721334/reviews)** |
| Number of ratings | — | **26** |
| Positive reviews | — | 61.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 142 MB | 80 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hatem Maati](https://appshunter.io/developer/1182835931) | [Mathew Chan](https://appshunter.io/developer/1441199099) |

## What reviewers say

### Animaths

[App page](https://appshunter.io/ios/app/animaths/id1622271068)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Animaths free?

Animaths costs $3.99, with no in-app purchases.

### Is Immersion Reader free?

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

### Do Animaths or Immersion Reader have ads?

Neither Animaths nor Immersion Reader shows ads.

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

Animaths ships an update every 40 months, and Immersion Reader every 6 days. Most recently, Animaths was updated on September 11, 2026 and Immersion Reader on October 1, 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.*