Certified True Randomizers

4.5
5.48K reviews
100K+
Downloads
Content rating
Rated for 3+
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About this app

All randomness wasn't created equal. This official RANDOM.ORG app offers certified true randomness, generated with atmospheric noise and independently approved by several testing labs. (See sample certificate in the screenshots.)

- Coin Flipper with 100 different coins from Ancient Rome to 27 modern currencies
- Dice Roller to roll up to six regular dice in one go
- Card Shuffler to shuffle playing cards and draw them one at a time
- Lotto Quick Pick with more than 170 lotteries from all around the world
- Integer Generator to generate true random numbers in configurable intervals
- List Randomizer to create and randomize your own lists of items

Note: This is not a gambling app. The app does not simulate any games, it simply allows you to roll dice, shuffle cards, etc -- using certified true randomness.

All randomizers are free to use and the app contains no advertising. If you like it, you can buy us coffee from the Settings screen -- much appreciated :-)

RANDOM.ORG was founded in 1998 and generates certified true randomness from atmospheric noise, which for many purposes is better than the pseudo-random numbers typically used in computer programs. Our mission is the generate the highest quality true randomness and make it available to the world in useful forms.
Updated on
Jul 21, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
5.16K reviews
Revenant Revvington
July 20, 2025
This app is great! To the people who are having trouble with crashes, I just had that problem and solved it by clearing the app storage.
2 people found this review helpful
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Gorgusaurus
March 16, 2024
This is a pretty good app! The coin choices especially are amazing. The only thing missing, and yet the most important feature imo, is being able to choose from a list. Currently, the list randomizer only shuffles items in a list, but you can't use it to choose between options in a created list. Also if it could keep track of results, that would be great. And final suggestion, the menu wheel is cool, but a dropdown menu would probably be better.
2 people found this review helpful
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Marina Harris
May 7, 2020
So sad! Been using this app for such a long time.. Maybe over a year. I kept a list of a few collections, along with some info about each item. I wanted to delete one of the lists, so I selected the settings button while in that list, and selected clear data. I didn't know it would erase all my lists 😭 I had almost 150 on one. Awesome app, worked perfectly but don't make the same mistake I did! Unfortunately it took so much time I probably won't make it again
25 people found this review helpful
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What’s new

Minor bug fixes

App support

About the developer
RANDOMNESS AND INTEGRITY SERVICES LIMITED
contact@random.org
12 FITZWILLIAM STREET UPPER DUBLIN D02 HY58 Ireland
+44 7537 183000