Universe Splitter icon

Universe Splitter v1.73

Universe Splitter screenshot 0 Universe Splitter screenshot 1 Universe Splitter screenshot 2 Universe Splitter screenshot 3 Universe Splitter screenshot 4 Universe Splitter screenshot 5 Universe Splitter screenshot 6 Universe Splitter screenshot 7 Universe Splitter screenshot 8 Universe Splitter screenshot 9 Universe Splitter screenshot 10 Universe Splitter screenshot 11 Universe Splitter screenshot 12 Universe Splitter screenshot 13 Universe Splitter screenshot 14

About this app

Developer Description

Use quantum physics to split your universe into two timelines.

Use Quantum Physics to Split Your Universe -- It's the Ultimate Decision-Maker

THIS IS THE ORIGINAL!

• An App Store "Top Paid App"
• An App Store "Staff Favorite"
• Endorsed by famous physicists

And recently featured in:
• "Something Deeply Hidden" best-selling book by Sean Carroll
• "The Joe Rogan Experience" podcast
• "This American Life" podcast


"According to quantum mechanics, every observation brings new universes into existence. But these universes have been completely useless to us -- until now! Universe splitter helps guarantee that there's at least one version of you who has made all the right choices."
-- Sean Carroll, physicist at Caltech and best-selling author


"The functioning of this app is in complete agreement with the many-worlds interpretation of quantum mechanics."
-- Garrett Lisi, PhD, Theoretical Physics


Scientists say that every quantum event plays out simultaneously in every possible way, with each possibility becoming real in a separate universe. But that was just an abstract concept... until now! Because now, you can harness this powerful and mysterious effect right from your phone.

When faced with a tough choice, Universe Splitter allows you to live out BOTH of your options... in separate realities.* No mere coin-flip app can make this claim!

Here's how it works:

Let's say you have to make a difficult decision — for example, whether to accept a job offer or to turn it down. Just type both actions into your Universe Splitter, and press the "Split Universe" button.

Universe Splitter will then, over the internet, activate a remote "Quantis" brand quantum device (made by id Quantique, and certified by the National Metrology Institute of Switzerland) which will send a single photon into a quantum "either/or" state. According to current scientific thinking, though, the photon will actually be in a "both, but in separate universes" state!

Within seconds, Universe Splitter will report to you which of those two universes you’re in, and by taking a different action in each, you will cause these previously identical universes to diverge.*

Of course, you won't be able to see or interact with that other universe. In fact, you may question whether anything at all happened. But according to the prevailing quantum theory, there will be two of you pondering whether anything just happened!

Right now you're probably wondering: Does this app genuinely contact a quantum device in Geneva? YES, it absolutely does, and we would be happy to provide proof of this upon request. Email eric@aerfish.com for more info.

As BDembko writes: "The real joke... is that it's NOT a joke. Which actually makes it funnier, if you ask me. (Kind of an Andy Kaufman kind of thing) The guy actually went the extra 10 miles... and it seems so absurd to us, that we figure it's a joke. But it's not... which then means it is. This is seriously quantum humor to the extreme."

And -- if an infinite supply of universes isn't enough for you -- this app also gives you stylish, retro, machine-age graphics (complete with industrial-strength sound effects) which will underscore the awe-inspiring significance of each twist and turn of your ever-branching multiverse.

If you're a believer in the "Many Worlds" interpretation of quantum behavior, this app is a must. And if you're not, just think of this as THE most random of all coin-flip apps -- in that it uses the single most unpredictable thing in the known universe: a single quantum event!

*According to prevailing quantum theory. Universes cannot contact each other. Not responsible for user's actions. ©Copyright 2009 Eric Daniels - All Rights Reserved

What's New

Minor UI tweaks; stability improvements

Version Information

Version
1.73
Downloads
5K+
Updated on
Jul 21, 2025
Released
Jun 11, 2021
Requires
Android 6.0

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Universe Splitter - Google Play Rankings

No ranking data available yet. Rankings are updated daily.

#12 in Top Paid Entertainment in United States

#10 in Top Paid Entertainment in Germany

#18 in Top Paid Entertainment in United Kingdom

#17 Magic Fluids Magic Fluids
#18 Universe Splitter Universe Splitter

#31 in Top Paid Entertainment in Saudi Arabia

Universe Splitter users say on Google Play

★★★★★
Michal Herbert Michal Herbert

This app has conditioned me so powerfully that I was able to put aside my anxiety (about grizzly bears) and go to sleep (while camping in the area with the most grizzly bears in the usa) by telling myself "There is a universe where I go to sleep and it's this one," even though I didn't even have cell service to use the app! P.S. I did not even see a grizzly bear. wrong universe for it, I guess. :(

16 Nov 16, 2023
★★★★
Evan Boyar Evan Boyar

Finally it's on Android! Ever since the ETH Zurich website stopped working, I've been waiting for a replacement. I'd give this app 5 stars if there were an option to disable all the delays, animations, and sounds and just give me a 0 or a 1.

35 Aug 13, 2021
★★★
Abhishek sharma Abhishek sharma

I am giving this app 3 stars , but the me in one other timeline is giving it 5 stars and one other me in other timeline is giving it 0 stars.😅 But in reality the app design is pretty cool.

6 Mar 26, 2024
★★
The GarButTMaN The GarButTMaN

Results lack variance. Better of asking a psychologist cuz you'll get the same response.

3 Feb 24, 2025
Michael Sweeney Michael Sweeney

if I could give it 0 stars, I would. paid $1.99 for this app and it doesn't even work on my Samsung Galaxy S9 Android phone! it loads up, and then the screen just goes completely black. you can click on things but you can't tell what it is that you're clicking on, or what you're typing for! it's ridiculous cuz I was really looking forward to using this app after seeing it in a YouTube Video. I want an update to fix this or a refund! can't do anything with a black screen!

15 Mar 17, 2025

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