# Immuno vs Visible Cat

The clearest difference is in-app purchases: Immuno at none against Visible Cat's 3. Visible Cat's advantage is update cadence (every 4 days vs every 6 months) and iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Visible Cat sells 3 in-app purchases, starting at $1.99 per month. Immuno asks for nothing beyond the download.

Immuno ships an update every 6 months, Visible Cat every 4 days. The most recent releases landed on September 19, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | Immuno | Visible Cat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/visible-cat/id6505015749/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 288 MB | 284 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Skerm West](https://appshunter.io/developer/1570686556) | [荣杰 章](https://appshunter.io/developer/1736051678) |

## What reviewers say

### Immuno

[App page](https://appshunter.io/ios/app/immuno-t/id1281477156)

This app uses a motion comic to visually explain the complex process of immunotherapy. It illustrates how cancer cells develop, how the immune system fights them, and how immunotherapy can enhance the body's defense. It serves as a supplementary tool for patients and their families to understand treatment information.

**Highlights:** Visual explanation of immunotherapy, Normal cell to cancer cell progression, Immune system's role in fighting cancer, How cancer cells evade the immune system, Immunotherapy strengthening the immune system, Support for patients and families

**Features:** macOS Compatibility

**In-app purchases:** none


### Visible Cat

[App page](https://appshunter.io/ios/app/visible-cat/id6505015749)

Explore the intricate 3D anatomy of a cat with this educational app. Ideal for veterinary professionals and students, it allows detailed examination of skeletal, muscular, nervous, and organ systems. Easily isolate, hide, or reveal specific structures for in-depth learning.

**Highlights:** 3D cat anatomy model, Toggle anatomy systems, Structure descriptions, Show/hide structures, Search anatomical structures, Multi-language support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version 1 Month | $1.99 | per month |
| Full Version 3 Months | $2.99 | per 3 months |
| Full Version 1 Year | $9.99 | per year |


## Frequently asked questions

### Is Immuno free?

Immuno is free to download, with no in-app purchases.

### Is Visible Cat free?

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

### Do Immuno or Visible Cat have ads?

Neither Immuno nor Visible Cat shows ads.

### Which is updated more often, Immuno or Visible Cat?

Immuno ships an update every 6 months, and Visible Cat every 4 days. Most recently, Immuno was updated on September 19, 2026 and Visible Cat on June 9, 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.*