# Probability Sim vs Randomness Generator

The clearest difference is in-app purchases: Randomness Generator at none against Probability Sim's 2. Randomness Generator also leads on update cadence (every 2 days vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Probability Sim sells 2 in-app purchases, starting at $4.99 per month. Randomness Generator asks for nothing beyond the download.

Probability Sim ships an update every 10 months, Randomness Generator every 2 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Probability Sim | Randomness Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 months | **Every 2 days** |
| Size | 29 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kota tada](https://appshunter.io/developer/1658942612) | [Owned by Me](https://appshunter.io/developer/1651859785) |

## What reviewers say

### Probability Sim

[App page](https://appshunter.io/ios/app/probability-sim-trillion/id6743378063)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $49.99 | per year |


### Randomness Generator

[App page](https://appshunter.io/ios/app/randomness-generator/id6758778902)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Probability Sim free?

Probability Sim is free to download, with in-app purchases available.

### Is Randomness Generator free?

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

### Do Probability Sim or Randomness Generator have ads?

Both Probability Sim and Randomness Generator show ads.

### Which is updated more often, Probability Sim or Randomness Generator?

Probability Sim ships an update every 10 months, and Randomness Generator every 2 days. Most recently, Probability Sim was updated on November 12, 2026 and Randomness Generator on November 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*