# The Random Number Generator! vs TrueEntropy

The clearest difference is in-app purchases: TrueEntropy at none against The Random Number Generator!'s 4. TrueEntropy also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). The Random Number Generator!'s advantage is update cadence (every 3 weeks vs every 41 months) and ratings volume (929 vs 11). On price there is nothing between them.

Both are free to download. The Random Number Generator! sells 4 in-app purchases, starting at $0.99 per month. TrueEntropy asks for nothing beyond the download.

The Random Number Generator! holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: The Random Number Generator! has 929 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 82% of The Random Number Generator!'s written reviews are positive against 67% of TrueEntropy's.

The Random Number Generator! ships an update every 3 weeks, TrueEntropy every 41 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | The Random Number Generator! | TrueEntropy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (929 ratings)](https://appshunter.io/ios/app/the-random-number-generator/id611762447/reviews)** | [4.5 (11 ratings)](https://appshunter.io/ios/app/trueentropy/id1299321174/reviews) |
| Number of ratings | **929** | 11 |
| Positive reviews | **81.9% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 41 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 10 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Dean](https://appshunter.io/developer/611762890) | [Vault12, Inc.](https://appshunter.io/developer/1073276506) |

## What reviewers say

### The Random Number Generator!

[App page](https://appshunter.io/ios/app/the-random-number-generator/id611762447)

Generate unpredictable, unique random numbers with advanced algorithms. Customize appearance, hear numbers spoken aloud, and set number ranges. Ideal for lotteries and various applications requiring random selection.

**Highlights:** Superior random number algorithms, Customizable appearance, Speech synthesis for spoken numbers, Selectable minimum and maximum number ranges, Option for unique number generation, History of generated numbers, Second screen support (AirPlay/wired)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter | $0.99 | per month |
| Remove Adverts | $0.99 | one-time |
| Coffee! | $2.99 | one-time |
| Sandwich! | $6.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Versatile with many options
- 🚀 Efficient for various tasks
- ✅ Reliable and dependable
- 🌟 Useful for decision-making

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 App sometimes won't open
- 🐛 Blank screen issue
- 🐛 Repeating numbers issue
- 🐛 Inconsistent randomness

**Reported bugs**

- App keeps crashing on startup
- App sometimes shows a blank screen
- App sometimes won't open
- App occasionally repeats the same number
- Watch version is limited and cannot change range

**Requested features**

- Dark mode option
- Ability to autoplay with screen off
- Availability in other languages
- Adjustable font size in data entry fields
- Bluetooth connectivity to TV


### TrueEntropy

[App page](https://appshunter.io/ios/app/trueentropy/id1299321174)

This app leverages your smartphone's camera to produce genuine random numbers by capturing thermal noise. It generates a high volume of entropy, suitable for cryptographic purposes, and can output data locally or remotely.

**Highlights:** Generate true random numbers from thermal noise, Utilizes smartphone camera sensor, High volume entropy generation, Output binary files locally, Send entropy via cryptographic relays, Continuous generation mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Random Number Generator! free?

The Random Number Generator! is free to download, with in-app purchases available.

### Is TrueEntropy free?

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

### Which has better reviews, The Random Number Generator! or TrueEntropy?

The Random Number Generator! is rated higher. The Random Number Generator! averages 4.8 out of 5 from 929 ratings, while TrueEntropy averages 4.5 from 11 ratings.

### Do The Random Number Generator! or TrueEntropy have ads?

The Random Number Generator! shows ads; TrueEntropy does not.

### Which is updated more often, The Random Number Generator! or TrueEntropy?

The Random Number Generator! ships an update every 3 weeks, and TrueEntropy every 41 months. Most recently, The Random Number Generator! was updated on October 26, 2026 and TrueEntropy on October 26, 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.*