# Immuno vs Crystal Flight

The clearest difference is iOS requirement: Immuno at 15.6 against Crystal Flight's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Immuno ships an update every 6 months, Crystal Flight every 5 months. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Immuno | Crystal Flight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crystal-flight/id1436396839/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 288 MB | 4 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 12+ | 4+ |
| Developer | [Skerm West](https://appshunter.io/developer/1570686556) | [Jeff Weeks](https://appshunter.io/developer/326104308) |

## 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


### Crystal Flight

[App page](https://appshunter.io/ios/app/crystal-flight/id1436396839)

Experience free flight within diverse crystal environments. Navigate your journey by simply tilting your iPhone or iPad to control direction.

**Highlights:** Free flight simulation, Crystal environments, Tilt-to-navigate controls, iPhone and iPad support

**In-app purchases:** none


## Frequently asked questions

### Is Immuno free?

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

### Is Crystal Flight free?

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

### Do Immuno or Crystal Flight have ads?

Neither Immuno nor Crystal Flight shows ads.

### Which is updated more often, Immuno or Crystal Flight?

Immuno ships an update every 6 months, and Crystal Flight every 5 months. Most recently, Immuno was updated on October 6, 2026 and Crystal Flight on October 2, 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.*