Universe Splitter
What is Universe Splitter?
Sends a photon to a remote quantum device to choose between two actions you type in, then reports which one applies.
You type two options, such as accepting or declining a job offer, and tap the Split Universe button. The app contacts a remote Quantis quantum device made by id Quantique over the internet, which sends a single photon into an either/or state, and the app reports which option you are in. The method follows the many-worlds interpretation of quantum mechanics, a claim the developer makes that is not independently verified here.
Pricing. Universe Splitter is $1.99 to download on the App Store.
Good for
- Choosing between accepting and declining a job offer
- Settling a decision between two options you cannot choose between
- Entertainment for people curious about quantum physics
Screenshots
Why this app is in D tier
D tier follows from that score within this list. The full explanation, as data.
Universe Splitter scores 51 out of 100: rating 94, rating count 74, App Store search rank 0, update recency 36. The four parts are averaged and D tier follows from that score within this list.
Description
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
Read more
"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 iPhone.
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 most random event in the 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
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Questions about Universe Splitter
Does the app really contact a quantum device?
The developer states that it does, contacting a remote Quantis device made by id Quantique over the internet, and says proof is available on request by email.
Do I need an internet connection to use it?
The app works by contacting the remote quantum device over the internet, so a connection is implied. Other requirements are Not stated on the App Store.
Can I see or act on the other outcome?
You cannot see or interact with the other universe. The app only reports which of the two outcomes applies to you.
Is Universe Splitter free?
No. Universe Splitter is $1.99 to download.
Is Universe Splitter right for me?
Universe Splitter is built for choosing between accepting and declining a job offer, settling a decision between two options you cannot choose between, entertainment for people curious about quantum physics. It sits in the random picker list on AppTierList.
Is Universe Splitter worth it?
Universe Splitter is D tier, ranked #23 of 25 random picker apps with a score of 51 out of 100, from a 4.7 App Store rating across 2,469 ratings. 22 apps rank above it in the same list.
How does Universe Splitter compare to PartyFun?
Universe Splitter is D tier at 51; PartyFun is D tier at 58. PartyFun ranks higher. Universe Splitter is $1.99 to download, PartyFun is free to download, with in-app purchases.
How often is Universe Splitter updated?
Universe Splitter was last updated over a year ago, on 2025-07-22, which holds its tier down.
Alternatives
Most similar
Top rated in Random Picker
Categories
All the facts
Ranking
- List
- Random Picker (D tier, #23)
- Tier
- D (Weak)
- Score
- 51 / 100
- Rank in list
- #23 of 25
- Ranking certainty
- early: few ratings or search ranks so far
Ratings
- App Store rating
- 4.7 out of 5, every App Store country
- Ratings
- 2,469
App
- Price
- $1.99 (USD)
- App Store category
- Entertainment
- Current version
- (470 days ago)
- Size
- 109 MB
- Requires
- iOS 15.6 or later
- Age rating
- 4+
- Languages
- 1
- Runs on
- iPhone, iPad
Links
- Developer pages
- Website · Support · Privacy policy
- Maker
- not verified
- As data
- JSON · why it ranks here
- App Store data read
App Store data read · ranking