{"id":43248,"date":"2024-05-15T15:07:25","date_gmt":"2024-05-15T19:07:25","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=43248"},"modified":"2024-05-15T15:21:18","modified_gmt":"2024-05-15T19:21:18","slug":"ios-17-5-fixes-client_id-but-breaks-app-marketplaces","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2024\/05\/15\/ios-17-5-fixes-client_id-but-breaks-app-marketplaces\/","title":{"rendered":"iOS 17.5 &ldquo;Fixes&rdquo; client_id But Breaks App Marketplaces"},"content":{"rendered":"<p><a href=\"https:\/\/twitter.com\/mysk_co\/status\/1790121816872161363\">Mysk<\/a>:<\/p>\n<blockquote cite=\"https:\/\/twitter.com\/mysk_co\/status\/1790121816872161363\"><p>iPhone users in the EU: DO NOT delete your alternative marketplace apps<\/p><p>iOS 17.5 breaks alternative marketplace app re-installation. MarketplaceKit now generates a different client_id every time it is called. Now there&rsquo;s no way for alternative marketplace developers to identify users who have already purchased the marketplace app.<\/p><p>Apple addressed a security issue we reported about the way MarketplaceKit handles client_id. The issue is fixed. But now developers are left with no option to identify installs and roughly estimate the Core Technology Fee (CTF) they owe Apple.<\/p><\/blockquote>\n\n<p><a href=\"https:\/\/twitter.com\/TimSweeneyEpic\/status\/1790140592787218581\">Tim Sweeney<\/a>:<\/p>\n<blockquote cite=\"https:\/\/twitter.com\/TimSweeneyEpic\/status\/1790140592787218581\">\n<p>A couple months in, Apple has already broken a basic feature required by competing app stores. &#x1F615;<\/p>\n<\/blockquote>\n\n<p>It&rsquo;s probably only needed because of the Core Technology Fee, which Apple decided to impose.<\/p>\n\n<p><a href=\"https:\/\/twitter.com\/ScottApogee\/status\/1790151801775313223\">Scott Miller<\/a>:<\/p>\n<blockquote cite=\"https:\/\/twitter.com\/ScottApogee\/status\/1790151801775313223\">\n<p>It really seems like Apple is never gonna play nice and will always do whatever they can to sully the user experience with third-party stores. Competing stores will forever have to keep dealing with Apple making third-party stores a less-than-Apple-store experience.<\/p>\n<\/blockquote>\n\n<p><a href=\"https:\/\/twitter.com\/mysk_co\/status\/1790470761863377357\">Mysk<\/a>:<\/p>\n<blockquote cite=\"https:\/\/twitter.com\/mysk_co\/status\/1790470761863377357\"><p>Just installed \n@Setapp, a very promising alternative marketplace in the EU. BUT it&rsquo;s unclear if such stores are going to survive a surge of undetected installs due to the lack of device identifiers.<\/p><p>Marketplaces might end up owing Apple loads of unexpected Core Technology Fee.<\/p><\/blockquote>\n\n<p>Previously:<\/p>\n<ul>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/05\/13\/ios-17-5-and-ipados-17-5\/\">iOS 17.5 and iPadOS 17.5<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/05\/03\/tracking-through-marketplacekit\/\">Tracking Through MarketplaceKit<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/05\/02\/altstore-pal\/\">AltStore PAL<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/04\/30\/hearing-for-apple-violating-epics-injunction\/\">Hearing for Apple Violating Epic&rsquo;s Injunction<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/03\/08\/app-marketplaces-will-stop-working-if-you-travel-outside-the-eu\/\">App Marketplaces Will Stop Working If You Travel Outside the EU<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/01\/29\/app-marketplaces-altstore-and-epic-games-store\/\">App Marketplaces: AltStore and Epic Games Store<\/a><\/li>\n<li><a href=\"https:\/\/mjtsai.com\/blog\/2024\/01\/25\/dma-compliance-alternative-app-stores-but-no-sideloading\/\">DMA Compliance: Alternative App Stores But No Sideloading<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Mysk: iPhone users in the EU: DO NOT delete your alternative marketplace appsiOS 17.5 breaks alternative marketplace app re-installation. MarketplaceKit now generates a different client_id every time it is called. Now there&rsquo;s no way for alternative marketplace developers to identify users who have already purchased the marketplace app.Apple addressed a security issue we reported about [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2024-05-15T19:07:28Z","apple_news_api_id":"3158a9c7-32f1-4851-9b2f-f9f62fe084fb","apple_news_api_modified_at":"2024-05-15T19:21:23Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAAAA==","apple_news_api_share_url":"https:\/\/apple.news\/AMVipxzLxSFGbL_n2L-CE-w","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[1878,2542,101,1927,31,2321,1466],"class_list":["post-43248","post","type-post","status-publish","format-standard","hentry","category-technology","tag-altstore","tag-app-marketplaces","tag-business","tag-european-union","tag-ios","tag-ios-17","tag-setapp"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43248","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=43248"}],"version-history":[{"count":2,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43248\/revisions"}],"predecessor-version":[{"id":43256,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/43248\/revisions\/43256"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=43248"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=43248"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=43248"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}