Comparison

The Random Number Generator! vs TrueEntropy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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/

About

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.

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
Read full description

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

The Random Number Generator!4 screens
TrueEntropy3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard9 real differences · 1 level
The Random Number Generator! versus TrueEntropy: the parameters behind the verdict, then further details
ParameterThe Random Number Generator!TrueEntropy
PriceFreeFree
Rating4.8 (929 ratings) — better4.5 (11 ratings)
Positive reviews81.9% of reviews — better66.7% of reviews
Number of ratings929 — better11
Update frequencyEvery 3 weeks — betterEvery 41 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size15 MB10 MB
Age rating4+4+
DeveloperNicholas DeanVault12, Inc.

Customer experience

The Random Number Generator!

All ratings913 ratings
Positive97.0%
Neutral0.9%
Negative2.1%
Written reviews127 reviews
Positive81.9%
Neutral6.3%
Negative11.8%

TrueEntropy

All ratings11 ratings
Positive90.9%
Neutral9.1%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

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
Show 7 more
  • 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
Show 9 more
  • 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

4 purchases

The Random Number Generator!

Subscriptions1
  • Supporter$0.991 Month
One-time3
  • Remove Adverts$0.99
  • Coffee!$2.99
  • Sandwich!$6.99
None

TrueEntropy

No in-app purchases

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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