# Immunotrain vs Immunity Science

The clearest difference is update cadence: Immunotrain at every 4 months against Immunity Science's every 14 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Immunotrain ships an update every 4 months, Immunity Science every 14 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Immunotrain | Immunity Science |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Size | 29 MB | 32 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fabian Brand](https://appshunter.io/developer/1572309046) | [Immunity Science, Inc.](https://appshunter.io/developer/1672160767) |

## What reviewers say

### Immunotrain

[App page](https://appshunter.io/ios/app/immunotrain/id1572309044)

**Features:** macOS Compatibility

**In-app purchases:** none


### Immunity Science

[App page](https://appshunter.io/ios/app/immunity-science/id1672160765)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Immunotrain free?

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

### Is Immunity Science free?

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

### Do Immunotrain or Immunity Science have ads?

Neither Immunotrain nor Immunity Science shows ads.

### Which is updated more often, Immunotrain or Immunity Science?

Immunotrain ships an update every 4 months, and Immunity Science every 14 months. Most recently, Immunotrain was updated on October 2, 2026 and Immunity Science on October 3, 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.*