In April 2010, [[Apple and Adobe Flash controversy|Apple made controversial changes]] to its iPhone Developer Agreement, requiring developers to use only "approved" programming languages in order to publish apps on [[App Store (iOS/iPadOS)|App Store]], and banning applications that used third-party development tools.<ref>{{Cite web|last=Chen|first=Brian X.|title=Adobe Apps: easier to pass through the 'i' of a needle?|url=https://www.Wired.com/2010/04/iphone-developer-policy|website=www.Wired.com|publisher=[[Wired (website)|Wired]] – [[Condé Nast]]|date=April 8, 2010|access-date=June 20, 2017}}</ref><ref>{{Cite web|last=Gruber|first=John|author-link=John Gruber|title=New iPhone Developer Agreement bans the use of Adobe's Flash-to-iPhone compiler|url=https://DaringFireball.net/2010/04/iphone_agreement_bans_flash_compiler|website=DaringFireball.net|publisher=Daring Fireball|date=April 8, 2010|access-date=June 20, 2017}}</ref><ref>{{Cite web|last=Kincaid|first=Jason|title=Apple gives Adobe the finger with its new iPhone SDK agreement|url=https://TechCrunch.com/2010/04/08/adobe-flash-apple-sdk/|website=TechCrunch.com|publisher=[[TechCrunch]] – [[AOL]]|date=April 8, 2010|access-date=June 20, 2017}}</ref> After developer backlash<ref name="guardian-sept2010-changes"/> and news of a potential anti-trust investigation,<ref>{{Cite web|last=Kosman|first=Josh|title=An antitrust app|url=https://NYPost.com/2010/05/03/an-antitrust-app/|website=NYPost.com|publisher=[[New York Post]] – [[News Corp (2013–present)|News Corp]]|date=May 3, 2010|access-date=June 20, 2017}}</ref><ref>{{Cite web|last=Cheng|first=Jacqui|title=Apple iPhone OS compiler policy may lead to antitrust probe|url=https://ArsTechnica.com/apple/2010/05/apples-compiler-policy-may-land-it-in-hot-water-with-ftc/|website=ArsTechnica.com|publisher=[[Ars Technica]] – [[Condé Nast]]|date=May 3, 2010|access-date=June 20, 2017}}</ref> Apple again revised its agreement in September, allowing the use of third-party development tools.<ref name="guardian-sept2010-changes">{{Cite web|last=Arthur|first=Charles|title=Apple opens App Store to programs written in Adobe Flash – and more|url=https://www.TheGuardian.com/technology/blog/2010/sep/09/apple-app-store-flash-open|website=www.TheGuardian.com|publisher=[[The Guardian]] – [[Guardian Media Group]]|date=September 9, 2010|access-date=June 20, 2017}}</ref><ref>{{Cite web|last=Sorrell|first=Charlie|title=Apple eases app development rules, Adobe surges|url=https://www.Wired.com/2010/09/apple-lifts-app-store-flash-ban-publishes-app-review-rules|website=www.Wired.com|publisher=[[Wired (website)|Wired]] – [[Condé Nast]]|date=September 9, 2010|access-date=June 20, 2017}}</ref>
