# Pseudo Random Number Generator vs Hermetic

The clearest difference is update cadence: Hermetic at every 5 weeks against Pseudo Random Number Generator's every 27 months. Pseudo Random Number Generator's advantage is iOS requirement (9.0 vs 26.1). 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.

Pseudo Random Number Generator ships an update every 27 months, Hermetic every 5 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | Pseudo Random Number Generator | Hermetic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/pseudo-random-number-generator/id1103138006/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 22 MB | 6 MB |
| Requires iOS | **9.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [齐 陈](https://appshunter.io/developer/455625305) | [Pearson Smith](https://appshunter.io/developer/1268483172) |

## What reviewers say

### Pseudo Random Number Generator

[App page](https://appshunter.io/ios/app/pseudo-random-number-generator/id1103138006)

Easily generate random numbers for various uses, from classroom calls to game dice rolls and lottery picks. Features a user-friendly interface with options for setting ranges and allowing duplicates.

**Highlights:** Generate random numbers, Set number range, Allow/disallow duplicates, Store generated numbers, Large, touch-friendly UI, Free to use

**Features:** macOS Compatibility

**In-app purchases:** none


### Hermetic

[App page](https://appshunter.io/ios/app/hermetic/id6756269480)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pseudo Random Number Generator free?

Pseudo Random Number Generator is free to download, with no in-app purchases.

### Is Hermetic free?

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

### Do Pseudo Random Number Generator or Hermetic have ads?

Neither Pseudo Random Number Generator nor Hermetic shows ads.

### Which is updated more often, Pseudo Random Number Generator or Hermetic?

Pseudo Random Number Generator ships an update every 27 months, and Hermetic every 5 weeks. Most recently, Pseudo Random Number Generator was updated on October 3, 2026 and Hermetic 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.*