{"app_store_id":329233299,"slug":"universe-splitter-329233299","name":"Universe Splitter","short_name":"Universe Splitter","subtitle":"Quantum Decision-Maker","icon_url":"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/512x512bb.jpg","icon_tint":null,"store_url":"https://apps.apple.com/us/app/universe-splitter/id329233299?uo=4","price":1.99,"currency":"USD","rating":4.67037,"rating_count":1529,"rating_worldwide":4.687,"rating_count_worldwide":2469,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Entertainment","version_date":"2025-07-22T09:13:48Z","updated_at":"2026-11-03T14:26:13.351Z","stale":false,"missing_since":null,"one_liner":"Sends a photon to a remote quantum device to choose between two actions you type in, then reports which one applies.","verified_maker":false,"maker_site":null,"file_size_bytes":109434880,"minimum_os":"15.6","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/17/0c/ba/170cbaf9-35e6-c5fc-b1f1-1e6b81e96792/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/7d/c9/33/7dc93357-8cf0-a019-b01a-4cc642f89671/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/61/04/3b/61043b5e-c530-dff1-7c30-f51b62703edb/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/07/55/72/075572c8-19bd-904a-4347-ac205ff582b6/pr_source.png/392x696bb.png"],"developer_name":"Aerfish LLC","editors_choice":false,"url":"https://apptierlist.com/apps/universe-splitter-329233299/","api_url":"https://apptierlist.com/api/v1/apps/universe-splitter-329233299","schema_version":"1.0","generated_at":"2026-11-04T01:09:51.677Z","data_as_of":"2026-11-03T16:24:12.759Z","description":"Use Quantum Physics to Split Your Universe -- It's the Ultimate Decision-Maker\n\nTHIS IS THE ORIGINAL!\n  • An App Store \"Top Paid App\"\n  • An App Store \"Staff Favorite\"\n  • Endorsed by famous physicists\n\nAnd recently featured in:\n  • \"Something Deeply Hidden\" best-selling book by Sean Carroll\n  • \"The Joe Rogan Experience\" podcast\n  • \"This American Life\" podcast\n\n\n\"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.\"\n    -- Sean Carroll, physicist at Caltech and best-selling author\n\n\"The functioning of this app is in complete agreement with the many-worlds interpretation of quantum mechanics.\"\n   -- Garrett Lisi, PhD, Theoretical Physics\n\n\nScientists 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.\n\nWhen 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!\n\nHere's how it works:\n\nLet'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.\n\nUniverse 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!\n\nWithin 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.*\n\nOf 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!\n\nRight 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.\n\nAs 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.\"\n\nAnd -- 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.\n\nIf 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!\n\n\n*According to prevailing quantum theory. Universes cannot contact each other. Not responsible for user's actions. ©Copyright 2009 Eric Daniels - All Rights Reserved","facts":{"developer_id":329233302,"developer_url":"http://aerfish.com/UniverseSplitter","first_released":"2009-10-06T20:05:41Z","support_url":"http://aerfish.com/support","privacy_url":"http://aerfish.com/privacypolicy","website_url":"http://aerfish.com/UniverseSplitter","app_version":"1.73","release_notes":"Minor interface tweaks; performance improvements","rating_current_version":4.67037,"rating_count_current_version":1529,"star_counts":[64,24,45,82,1313],"genres":["Entertainment","Utilities"],"languages":["EN"],"content_advisories":null,"device_families":["iphone","ipad","ipod"],"made_for_iphone_duo":false,"chart":{"name":"top-paid Entertainment","position":42}},"freshness":{"apple_read_at":"2026-11-03T14:26:13.351Z","catalog_read_at":"2026-10-28T13:41:13.294Z","reviews_checked_at":null,"summary_written_at":"2026-10-28T01:33:12.793Z","placed_at":"2026-10-28T00:57:12.976Z","scored_at":"2026-11-03T16:24:12.759Z"},"editorial":{"one_liner":"Sends a photon to a remote quantum device to choose between two actions you type in, then reports which one applies.","what_is":"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.","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"],"pricing":"Universe Splitter is $1.99 to download on the App Store.","faq":[{"q":"Does the app really contact a quantum device?","a":"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."},{"q":"Do I need an internet connection to use it?","a":"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."},{"q":"Can I see or act on the other outcome?","a":"You cannot see or interact with the other universe. The app only reports which of the two outcomes applies to you."}],"model":"claude-haiku-5-5","created_at":"2026-10-28T01:33:12.793Z"},"memberships":[{"list":"random-picker","list_name":"random picker","list_status":"active","list_url":"https://apptierlist.com/best/random-picker/","position":23,"tier":"D","score":50.8,"components":{"rating":93.7,"votes":73.9,"rank":0,"recency":35.7},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-28T00:57:12.976Z"}],"main_list":"random-picker","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":248356,"at":"2026-10-29T21:49:13.342Z","kind":"tier_changed","list":"random-picker","app_store_id":329233299,"app":"universe-splitter-329233299","from":"C","to":"D","reason":"score 67.2 to 50.4","job":"rescore"},{"id":240612,"at":"2026-10-28T01:11:12.856Z","kind":"tier_changed","list":"random-picker","app_store_id":329233299,"app":"universe-splitter-329233299","from":null,"to":"C","reason":"score 67.3","job":"rescore"},{"id":240547,"at":"2026-10-28T00:57:12.976Z","kind":"membership_added","list":"random-picker","app_store_id":329233299,"app":"universe-splitter-329233299","from":null,"to":"active","reason":"Built as a decision-maker: you enter two options and a quantum random event picks between them, marketed as better than a coin-flip app.","job":"shadow"},{"id":200432,"at":"2026-10-24T02:32:13.073Z","kind":"app_added","list":null,"app_store_id":329233299,"app":"universe-splitter-329233299","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is an average of the components an app has (four public App Store signals, plus Apple's Editors' Choice badge as 100 where shown, plus ownership as 100 where the maker has verified it with our badge: it shows in components as ownership_verified); nothing is purchasable. Apps whose maker has verified ownership get a small score component, because an active maker is a sign the app is kept up to date. It never decides a tier on its own. Updated daily.","lists":[{"list":"random-picker","list_name":"random picker","status":"active","review_status":"checked","position":23,"tier":"D","score":50.8,"components":{"rating":93.7,"votes":73.9,"rank":0,"recency":35.7},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Built as a decision-maker: you enter two options and a quantum random event picks between them, marketed as better than a coin-flip app.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-28T00:57:12.976Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its core purpose is making a decision between options by chance, using a quantum random event. 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