---
title: "Universe Splitter - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
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 physicist"
---

# Universe Splitter — United Kingdom
> Quantum Decision-Maker

![Universe Splitter App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/19/30/49/1930490e-1c17-ab43-7493-cb5dcfc91236/AppIcon-1x_U007emarketing-0-8-0-85-220-0.png/434x0w.png)

**Developer:** [Aerfish](https://apptail.io/developer/aerfish-Wdhc)
**Category:** Entertainment
**Rating:** 4.7/5 (144 ratings)
**Price:** Free
**Bundle ID:** com.aerfish.Universes
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 1.73 (released 2025-07-22)
**Original Release:** 2009-10-06
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id329233299)
**AppTail Page:** [https://apptail.io/app/universe-splitter-OVZd/united-kingdom](https://apptail.io/app/universe-splitter-OVZd/united-kingdom)

## Universe Splitter 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


"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

## Universe Splitter Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/bb/b9/06/bbb906b0-91ec-f96c-d74a-c804d9452041/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/b9/e8/6c/b9e86c97-4f5f-1191-f235-fe125b59e4a2/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/55/c5/d2/55c5d263-9bba-de7f-0b53-b5391b96878b/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/0f/7e/2a/0f7e2a3f-c862-1636-6bc0-9aafe684cd90/pr_source.png/1242x2688.png)

## Universe Splitter Rating Breakdown in United Kingdom
- 5 stars: 130 (90%)
- 4 stars: 4 (3%)
- 3 stars: 1 (1%)
- 2 stars: 1 (1%)
- 1 stars: 8 (6%)

## Universe Splitter Reviews in United Kingdom

### ***** "Review"
It’s such a good App, and it’s very cheap for what it is!
I love it
-- LYNCHYLAA, 2025-04-24

### ***** "Quantum"
Child
-- Nkk de hrjfjj, 2025-03-06

### ***** "Random indeed"
As a few other commenters at the start I got a suspiciously many answers for option A. However when I decided to spam it for a while I did obtain a random distribution at the large scale. 
Guess we don’t ever expect patterns to emerge in a random distribution even though they always do on the small scale.
If not - the CMB would’ve been perfectly uniform.
-- Like it,a bit hard to aim, 2024-08-01

### ***** "Write a review as if Many Worlds is correct"
Brilliant! I split the universe based on the options “write a review as if Many Worlds is correct” and “write a review as if the Copenhagen Interpretation is correct” and you happen to be in the split universe with me where this app instructed me to do the first. Therefore my review is that it’s brilliant and represents reality 100%. Well done. Somewhere there is a split universe where I am writing a review about my great disappointment at the app on discovering that the Copenhagen Interpretation is correct and giving it zero stars. Not here!
-- Alicia Edith Ironing-Board, 2024-02-27

### *---- "App functionalities"
How is this supposed to determine what I do in the other universe, if I have the same words put on twice in a row why is it a 50/50 on what comes out that u should do, I don’t feel like doing it but regardless it tells me I should do it, it makes no sense on what this app is trying to accomplish, on both my reality’s I wouldn’t kill myself so why would it come out over and over again, if apparently this app is technically advanced and can predict the out come and the split decision I make I would have been dead now if this app was actually true, I payed 2 pounds to get told to kill my self over and over again, who ever spent there time, effort and money on this needs to get demoted
-- SaltBae_69, 2023-09-20

### ***** "Fun and strangely useful"
I really like the App it is entertaining and kind of insightful lol…
-- Ex-🤩, 2023-01-08

### ***** "Review by Andrew McVey"
I’ve been interested as a layman in multi universe quantum stuff and manifestation through meditation law of attraction bumble and squeak of my own methodology for a while now. As someone with a huge helping of neurodiversities this app speaks to my geekiness and my inability to make a decision. I like it. I’ve purchased it and think anyone should have a blast at it. Let’s face it you will or you won’t if you do you won’t in your parallel and Vice Versa to infinity and beyond
-- @ndy M©Vey, 2022-09-29

### ***** "Splitter"
Quantum fun
-- DavidWinstonCase, 2022-08-12

### *---- "App don’t work?"
Seems to always give you option A?
-- Dedmor.UK, 2022-06-07

### ***** "Add the experiment weblink"
I curious to see the laboratory experiments photos .. and technical papers. contact a laboratory in Geneva, Switzerland, and connect to a Quantis brand quantum device, which releases single photons into a partially-silvered mirror. Each photon will simultaneously bounce off the mirror and pass through it
-- aa7356, 2022-05-25

### ***** "The best flip a coin app there is."
If you are not sure which way to go and want to play it by chance this is your app. 
The details of how this app works and where are also fascinating if you card to look into it. 
Highly recommended
-- Dane11111, 2022-03-19

### ***** "Update breaks chart"
Since updating to the Unity version, the chart no longer records any splits. Also completely wipes the previous chart. This is on iPhone X in iOS 15.1 - app needs a bug fix.

Edit - my mistake, see the developer response below. Back to 5 stars, looking forward to my chart being restored in a forthcoming update.
-- gattacaHQ, 2021-12-06

### ***** "Question"
If I input the two different options and click “split universe” and, for example, it tells me I’m in universe A, can’t I just decide to do what it said I should’ve done in the other universe instead of the one I was given?

P.S. I did the default “take a chance” and “play it safe” options and I got the result of taking a chance and now I’m writing this review - I don’t know if that’s the chance I’m supposed to be taking but if it is then that’s kinda creepy
-- lfcloverman, 2020-11-25

### **--- "Interesting"
Very interesting just downloaded it but i dont really know what to do after the first split like do i do it again and again and again and i wont know the out come orr?
-- bigboss1234567, 2020-08-09

### ***** "Hmmm"
Found out about this from one of Joe Rogans podcasts and some scientist dude was talking about it so i thought i would give it a go... once i filled it in and hit split it says the device is offline right now? is this a permanent thing or will it be back up soon? besides that seems like a really cool app!
-- Zyrans, 2020-06-08

### ***** "Bought the app and it doesn’t function."
Purchased the app, split the universe, nothing else has happened, no updates, everything static. Literally nothing has happened at all. Waste of money.
-- GinoMontana, 2020-03-29

### ****- "Really cool.. but"
Can I have proof that it actually fires photons?? Very interesting if it does :)
-- Davidtonascellanevans, 2019-11-09

### *---- "Not currently working!"
Why are you still selling this app when it’s not currently working? I just get a message saying that it can’t connect to the quantum device.
-- whatabohr, 2019-11-08

### *---- "Already unimpressed"
Haven’t even opened the app yet and I am already unimpressed. I have been charged £2.99 for it and then a further £1.99. The app is only supposed to cost £1.99 so why have I been changed twice and the first time a higher price? Don’t risk being overcharged.
-- Shaz1138, 2019-09-26

### ****- "Doesn’t work with iPhone 11"
Not sure what is really going on but it looks cool, and it’s free!
-- pachanights, 2019-09-22

[View all Universe Splitter reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Universe Splitter Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Hungary | Entertainment | #2 |
| Top Paid | Romania | Entertainment | #5 |
| Top Paid | Ukraine | Entertainment | #8 |
| Top Paid | Austria | Entertainment | #8 |
| Top Paid | Switzerland | Entertainment | #9 |
| Top Paid | Spain | Entertainment | #10 |
| Top Paid | United States | Entertainment | #10 |
| Top Paid | Belgium | Entertainment | #12 |
| Top Paid | Saudi Arabia | Entertainment | #14 |
| Top Paid | Hungary | Overall | #15 |
| Top Paid | Netherlands | Entertainment | #26 |
| Top Paid | Kazakhstan | Entertainment | #34 |
| Top Paid | South Africa | Entertainment | #35 |
| Top Paid | Ireland | Entertainment | #39 |
| Top Paid | Czechia | Entertainment | #40 |
| Top Paid | Portugal | Entertainment | #43 |
| Top Paid | India | Entertainment | #44 |
| Top Paid | Germany | Entertainment | #46 |
| Top Paid | Australia | Entertainment | #47 |
| Top Paid | New Zealand | Entertainment | #48 |
| Top Paid | Poland | Entertainment | #49 |
| Top Paid | Finland | Entertainment | #52 |
| Top Paid | Belarus | Entertainment | #53 |
| Top Paid | Romania | Overall | #55 |
| Top Paid | Israel | Entertainment | #61 |
| Top Paid | Sweden | Entertainment | #61 |
| Top Paid | Pakistan | Entertainment | #63 |
| Top Paid | Greece | Entertainment | #63 |
| Top Paid | Azerbaijan | Entertainment | #64 |
| Top Paid | Egypt | Entertainment | #66 |
| Top Paid | Norway | Entertainment | #66 |
| Top Paid | United Arab Emirates | Entertainment | #67 |
| Top Paid | United Kingdom | Entertainment | #70 |
| Top Paid | Thailand | Entertainment | #71 |
| Top Paid | Canada | Entertainment | #75 |
| Top Paid | Singapore | Entertainment | #79 |
| Top Paid | Russia | Entertainment | #79 |
| Top Paid | Peru | Entertainment | #80 |
| Top Paid | Denmark | Entertainment | #82 |
| Top Paid | Türkiye | Entertainment | #82 |
| Top Paid | Philippines | Entertainment | #83 |
| Top Paid | Lebanon | Entertainment | #85 |
| Top Paid | Dominican Republic | Entertainment | #87 |
| Top Paid | Ecuador | Entertainment | #98 |
| Top Paid | Argentina | Entertainment | #102 |
| Top Paid | Chile | Entertainment | #103 |
| Top Paid | Colombia | Entertainment | #105 |
| Top Paid | Hong Kong SAR China | Entertainment | #112 |
| Top Paid | Indonesia | Entertainment | #122 |
| Top Paid | Vietnam | Entertainment | #124 |
| Top Paid | Brazil | Entertainment | #125 |
| Top Paid | Mexico | Entertainment | #130 |
| Top Paid | Saudi Arabia | Overall | #131 |
| Top Paid | United States | Overall | #141 |
| Top Paid | Malaysia | Entertainment | #142 |
| Top Paid | France | Entertainment | #142 |
| Top Paid | Italy | Entertainment | #142 |
| Top Paid | Ukraine | Overall | #145 |
| Top Paid | Kuwait | Entertainment | #158 |
| Top Paid | South Korea | Entertainment | #160 |
| Top Paid | Spain | Overall | #163 |
| Top Paid | Japan | Entertainment | #180 |
| Top Paid | Switzerland | Overall | #195 |
| Top Paid | Taiwan | Entertainment | #199 |
| Top Paid | Nigeria | Entertainment | #199 |
| Top Paid | Belgium | Overall | #244 |
| Top Paid | China | Entertainment | #255 |
| Top Paid | Austria | Overall | #268 |
| Top Paid | Netherlands | Overall | #397 |
| Top Paid | Kazakhstan | Overall | #467 |


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## Universe Splitter Available In
- [United States](https://apptail.io/app/universe-splitter-OVZd/united-states)
- [United Kingdom](https://apptail.io/app/universe-splitter-OVZd/united-kingdom)
- [Canada](https://apptail.io/app/universe-splitter-OVZd/canada)
- [Germany](https://apptail.io/app/universe-splitter-OVZd/germany)
- [Australia](https://apptail.io/app/universe-splitter-OVZd/australia)
- [China](https://apptail.io/app/universe-splitter-OVZd/china)
- [Japan](https://apptail.io/app/universe-splitter-OVZd/japan)
- [Netherlands](https://apptail.io/app/universe-splitter-OVZd/netherlands)
- [Sweden](https://apptail.io/app/universe-splitter-OVZd/sweden)
- [Switzerland](https://apptail.io/app/universe-splitter-OVZd/switzerland)
- [India](https://apptail.io/app/universe-splitter-OVZd/india)
- [Russia](https://apptail.io/app/universe-splitter-OVZd/russia)
- [Thailand](https://apptail.io/app/universe-splitter-OVZd/thailand)
- [Norway](https://apptail.io/app/universe-splitter-OVZd/norway)
- [Spain](https://apptail.io/app/universe-splitter-OVZd/spain)
- [Italy](https://apptail.io/app/universe-splitter-OVZd/italy)
- [Czechia](https://apptail.io/app/universe-splitter-OVZd/czechia)
- [Ukraine](https://apptail.io/app/universe-splitter-OVZd/ukraine)
- [South Africa](https://apptail.io/app/universe-splitter-OVZd/south-africa)
- [Brazil](https://apptail.io/app/universe-splitter-OVZd/brazil)
- [Poland](https://apptail.io/app/universe-splitter-OVZd/poland)
- [New Zealand](https://apptail.io/app/universe-splitter-OVZd/new-zealand)
- [Croatia](https://apptail.io/app/universe-splitter-OVZd/croatia)
- [Hungary](https://apptail.io/app/universe-splitter-OVZd/hungary)
- [Austria](https://apptail.io/app/universe-splitter-OVZd/austria)
- [Romania](https://apptail.io/app/universe-splitter-OVZd/romania)
- [Belgium](https://apptail.io/app/universe-splitter-OVZd/belgium)
- [Ireland](https://apptail.io/app/universe-splitter-OVZd/ireland)
- [Taiwan](https://apptail.io/app/universe-splitter-OVZd/taiwan)
- [Türkiye](https://apptail.io/app/universe-splitter-OVZd/turkey)
- [Israel](https://apptail.io/app/universe-splitter-OVZd/israel)
- [Denmark](https://apptail.io/app/universe-splitter-OVZd/denmark)
- [Saudi Arabia](https://apptail.io/app/universe-splitter-OVZd/saudi-arabia)
- [Finland](https://apptail.io/app/universe-splitter-OVZd/finland)
- [United Arab Emirates](https://apptail.io/app/universe-splitter-OVZd/united-arab-emirates)
- [Bulgaria](https://apptail.io/app/universe-splitter-OVZd/bulgaria)
- [Latvia](https://apptail.io/app/universe-splitter-OVZd/latvia)
- [Chile](https://apptail.io/app/universe-splitter-OVZd/chile)
- [South Korea](https://apptail.io/app/universe-splitter-OVZd/south-korea)
- [Greece](https://apptail.io/app/universe-splitter-OVZd/greece)
- [Colombia](https://apptail.io/app/universe-splitter-OVZd/colombia)
- [Egypt](https://apptail.io/app/universe-splitter-OVZd/egypt)
- [Peru](https://apptail.io/app/universe-splitter-OVZd/peru)
- [Uzbekistan](https://apptail.io/app/universe-splitter-OVZd/uzbekistan)
- [Iceland](https://apptail.io/app/universe-splitter-OVZd/iceland)
- [Kazakhstan](https://apptail.io/app/universe-splitter-OVZd/kazakhstan)
- [Singapore](https://apptail.io/app/universe-splitter-OVZd/singapore)
- [Slovenia](https://apptail.io/app/universe-splitter-OVZd/slovenia)
- [Estonia](https://apptail.io/app/universe-splitter-OVZd/estonia)
- [Lebanon](https://apptail.io/app/universe-splitter-OVZd/lebanon)
- [Argentina](https://apptail.io/app/universe-splitter-OVZd/argentina)
- [North Macedonia](https://apptail.io/app/universe-splitter-OVZd/north-macedonia)
- [Malaysia](https://apptail.io/app/universe-splitter-OVZd/malaysia)
- [Nepal](https://apptail.io/app/universe-splitter-OVZd/nepal)
- [Pakistan](https://apptail.io/app/universe-splitter-OVZd/pakistan)
- [Dominican Republic](https://apptail.io/app/universe-splitter-OVZd/dominican-republic)
- [Belarus](https://apptail.io/app/universe-splitter-OVZd/belarus)
- [Brunei](https://apptail.io/app/universe-splitter-OVZd/brunei)
- [Bahrain](https://apptail.io/app/universe-splitter-OVZd/bahrain)
- [Azerbaijan](https://apptail.io/app/universe-splitter-OVZd/azerbaijan)
- [Luxembourg](https://apptail.io/app/universe-splitter-OVZd/luxembourg)

---

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