Comparison

Universe Splitter vs Blower

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

Head to head
About

Universe Splitter

This app uses quantum physics to help you make decisions. Input two choices, and it uses a remote quantum device to determine which reality you end up in, allowing you to live out both outcomes in separate universes.

Highlights
  • Quantum decision-making
  • Splits universes based on choices
  • Uses remote quantum device
  • Based on many-worlds interpretation
  • Original and acclaimed app
Features
Read full 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

About

Blower

Simulate blowing air from your device's speaker to interact with virtual flames. Features include blowing out candles, making flames dance to music, and controlling them with your voice. Optimize airflow for the best experience.

Highlights
  • Blow out candles and lighter flames
  • Flames dance to music beat
  • Control flames with voice
  • Automatic gun mode for flame shiver
  • Optimize airflow with built-in tuner
  • Interactive touch rotor with sparks
  • Birthday iMessage Stickerpack
Features
Read full description

"It blows air!", CNN --- Unlock the new mind-blowing feature on your iPhone and iPad: Blow out candle or lighter flames, let flames dance to the music beat, or control flames with your voice! Blower uses secret hardware features of your device, check below for the Blower Power. • "Believe it or not, it blows air!" , Gizmodo • Knocked Ellen Degeneres right out of her chair during her TV talkshow! • "a one-of-a-kind application that pushes the iPhone’s functionality and awesomeness even further", krapps.com • Ranked overall #1 in 20+ countries in the App Store • 40+ YouTube movies of users all around the world • "This is both totally stupid and incredibly brilliant", youtube comment by "mambokurtz" Try it yourself and be amazed... Start your Blower and feel the air flowing from the speaker opening. Fun party trick examples: • BLOW mode: blow out candles and lighter flames • BEAT mode: let flames dance to the music beat, or control flames with your voice! • GUN mode: let flames shiver with automatic gun mode • TUNER mode: adjust the blower engine to optimize air flow on your device • Touch the blower rotor: drive it yourself and see the sparks • Birthday iMessage Stickerpack Curious? Watch the blower in action on BlowerApp.com, or search for "iPhone blower" on YouTube. Have fun, Qneo BLOWER POWER For maximum blowing power, remove protective covers/casings that could block the air flow, use maximum audio volume, optimize with the built-in tuner, and ensure no dust has accumulated in your speaker opening. You can verify the cool air flow by holding the speaker opening close to your mouth. When blowing out candles, don't burn your device!

Screenshots

Universe Splitter4 screens
Blower4 screens

Verdict

The call

The clearest difference is monetization model: Blower at free against Universe Splitter's paid. Universe Splitter's advantage is review sentiment (76% vs 53%) and rating (4.7 vs 4.5). On price, ratings volume, update cadence and ads 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

Universe Splitter costs $1.99 and Blower $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Universe Splitter holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 1.5K and 1.3K respectively. Written reviews point the same way: 76% of Universe Splitter's written reviews are positive against 53% of Blower's.

UpkeepUpdate frequency

Universe Splitter ships an update every 17 months, Blower every 9 months. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 8 level
Universe Splitter versus Blower: the parameters behind the verdict, then further details
ParameterUniverse SplitterBlower
Price$1.99$1.99
Rating4.7 (1.5K ratings) — better4.5 (1.3K ratings)
Positive reviews75.6% of reviews — better52.9% of reviews
Number of ratings1.5K — better1.3K
Update frequencyEvery 17 monthsEvery 9 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#34#20 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size104 MB74 MB
Age rating4+4+
DeveloperAerfish LLCQneo

Customer experience

Universe Splitter

All ratings1,527 ratings
Positive91.4%
Neutral2.9%
Negative5.8%
Written reviews205 reviews
Positive75.6%
Neutral6.3%
Negative18.0%

Blower

All ratings1,339 ratings
Positive87.0%
Neutral3.5%
Negative9.5%
Written reviews344 reviews
Positive52.9%
Neutral5.8%
Negative41.3%

User reviews

Universe Splitter

From 1.5K App Store ratings

What we love

  • 👍 Great app for decision-making
  • 🤖 Unique concept using quantum mechanics
  • 🤩 Fun and engaging user experience
  • 🧠 Helps with indecision and analysis paralysis

Room to improve

  • 🐛 Inconsistent or unreliable results
  • 🔧 Technical issues with connectivity or functionality
  • 💤 Boring or repetitive after repeated use
  • 🤔 Doubts about the app's true quantum capabilities

Blower

From 1.3K App Store ratings

What we love

  • 💨 Blows air
  • 🔥 Blows out candles
  • 🤩 Fun and interesting app
  • 👍 Works as expected

Room to improve

  • 🔊 Loud and annoying noise
  • 🌬️ Weak air flow
  • 💰 Overpriced for the functionality
  • 🐛 Doesn't work on all devices

Bugs and requests

Universe Splitter

Reported bugs

3 issues
  • App crashes or freezes during use
  • Inconsistent behavior across devices or OS versions
  • Issues with loading or connecting to the quantum device

Requested features

4 requests
  • Add ability to track and review past decisions
  • Improve visual design and user interface
  • Provide more information on the science behind the app
  • Allow customization of options and decision-making process

Blower

Reported bugs

2 issues
  • Damages phone speakers
  • Automatically sets volume to max

Requested features

3 requests
  • More powerful air flow
  • Additional modes or features
  • Volume control options

In-app purchases

None

Universe Splitter

No in-app purchases

None

Blower

No in-app purchases

Questions

Is Universe Splitter free?
Universe Splitter costs $1.99, with no in-app purchases.
Is Blower free?
Blower costs $1.99, with no in-app purchases.
Which has better reviews, Universe Splitter or Blower?
Universe Splitter is rated higher. Universe Splitter averages 4.7 out of 5 from 1.5K ratings, while Blower averages 4.5 from 1.3K ratings.
Do Universe Splitter or Blower have ads?
Neither Universe Splitter nor Blower shows ads.
Which is updated more often, Universe Splitter or Blower?
Universe Splitter ships an update every 17 months, and Blower every 9 months. Most recently, Universe Splitter was updated on October 18, 2026 and Blower on October 17, 2026.
Which is more popular, Universe Splitter or Blower?
Universe Splitter currently peaks at #34 in the App Store charts, and Blower at #20. Chart position reflects recent download velocity rather than total install base.

Other comparisons