The Random Number Generator! vs TrueEntropy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Random Number Generator!
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.
- 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)
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Make sure you have The Random Number Generator for those inevitable times when you urgently need a random number! Features: • Uses advanced algorithms for a unique sequence of random numbers every time. • A customizable appearance. • Speech Synthesis to read out your number in your device language. • Options to choose both a minimum and maximum number to limit the result to the random number you really need. • An option to show a history of generated numbers. • The ability to only generate unique numbers. • A clean, minimalistic layout with no clutter. • Support for second screens using AirPlay or wired connections. • Perfect for raffles, drawings, and lottery picks. • Designed to fully support all iPhone, iPad, and Apple Watch screen sizes. • Supports iPad multitasking, including Split View and Slide Over. This app will constantly be updated and improved. If you have any feedback or suggestions on what you would like to see, please contact us at: Nick@FluffyLogicGames.com This app follows Apple's Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TrueEntropy
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.
- 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
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TrueEntropy uses your phone's camera to generate true random numbers derived from thermal noise. The camera in your smartphone is so advanced that it can detect even the smallest variations produced by fundamental particle physics. We capture thermal variations in every pixel of your phone's camera to create a powerful, high volume entropy random number generator. No need to move your phone - even if your phone is resting on a desktop, it is able to pick up a sufficient quantity of thermal variations to generate random numbers at a rate of 18Mb per minute. - Generate binary files for local use via AirDrop - Send entropy to a destination machine via cryptographic relays - Continuous generation mode to constantly reseed target machines
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | The Random Number Generator! | TrueEntropy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (929 ratings) — better | 4.5 (11 ratings) |
| Positive reviews | 81.9% of reviews — better | 66.7% of reviews |
| Number of ratings | 929 — better | 11 |
| Update frequency | Every 3 weeks — better | Every 41 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicholas Dean | Vault12, Inc. |
Customer experience
The Random Number Generator!
TrueEntropy
Bugs and requests
The Random Number Generator!
Reported bugs
12 issues- 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
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- Green slider is broken
- New update doesn't work well, reverts to old number
- Voice function not working for some users
- Haptic feedback sporadically turns on after being turned off
- Auto-generate speed is too fast in new version
- App crashes when connected to a VGA monitor
- App freezes after generating only a few numbers
Requested features
14 requests- Dark mode option
- Ability to autoplay with screen off
- Availability in other languages
- Adjustable font size in data entry fields
- Bluetooth connectivity to TV
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- Add more bells and whistles
- Option for different colored raffle numbers
- Time stamp for each number generated
- Negative number support
- Bluetooth connectivity
- More control over number generation (e.g., sequence length, time interval)
- Ability to set timer for auto-generate speed
- Seven number generators on one page for referees
- Option to never repeat a number consecutively
TrueEntropy
Not enough reviews yet to summarise bugs or requests.
In-app purchases
The Random Number Generator!
- Supporter$0.991 Month
- Remove Adverts$0.99
- Coffee!$2.99
- Sandwich!$6.99
TrueEntropy
No in-app purchases
Questions
Is The Random Number Generator! free?
Is TrueEntropy free?
Which has better reviews, The Random Number Generator! or TrueEntropy?
Do The Random Number Generator! or TrueEntropy have ads?
Which is updated more often, The Random Number Generator! or TrueEntropy?
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