# REPTRAILS Chemtrail Program vs Realistic Virus Simulator

The clearest difference is update cadence: Realistic Virus Simulator at daily against REPTRAILS Chemtrail Program's monthly. 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.

REPTRAILS Chemtrail Program ships an update monthly, Realistic Virus Simulator daily. The most recent releases landed on October 13, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | REPTRAILS Chemtrail Program | Realistic Virus Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (7 ratings)](https://appshunter.io/ios/app/realistic-virus-simulator/id6466716587/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | — | Free |
| Size | 184 MB | 68 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Torsten Fock-Herde](https://appshunter.io/developer/1586528403) | [Andres Brockmann](https://appshunter.io/developer/1691955969) |

## What reviewers say

### REPTRAILS Chemtrail Program

[App page](https://appshunter.io/ios/app/reptrails-chemtrail-program/id1586528401)

**Features:** macOS Compatibility

**In-app purchases:** none


### Realistic Virus Simulator

[App page](https://appshunter.io/ios/app/realistic-virus-simulator/id6466716587)

Design and simulate your own viruses in a dynamic virtual world. Observe how they spread, affect populations, and impact individuals with customizable parameters. Learn about epidemiological dynamics through realistic simulations.

**Highlights:** Create custom viruses, Realistic population simulation, Dynamic environmental factors, Monitor hospitalization and mortality, In-depth statistics, Educational insights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is REPTRAILS Chemtrail Program free?

REPTRAILS Chemtrail Program is free to download, with no in-app purchases.

### Is Realistic Virus Simulator free?

Realistic Virus Simulator is free to download, with no in-app purchases.

### Do REPTRAILS Chemtrail Program or Realistic Virus Simulator have ads?

Neither REPTRAILS Chemtrail Program nor Realistic Virus Simulator shows ads.

### Which is updated more often, REPTRAILS Chemtrail Program or Realistic Virus Simulator?

REPTRAILS Chemtrail Program ships an update monthly, and Realistic Virus Simulator daily. Most recently, REPTRAILS Chemtrail Program was updated on October 13, 2026 and Realistic Virus Simulator on October 22, 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.*