How to Unlink Twitch from PS4 on iPhone or iPad
This wikiHow teaches you how to disconnect your linked PlayStation Network (PSN) account from your Twitch profile, using an iPhone or iPad. You can unlink your accounts in a mobile web browser by viewing the website in desktop mode.
1//www.twitch.tv in your web browser. You can use any browser like Safari, Chrome or Firefox.
2It will open a pop-up menu. If you're using Chrome or Firefox, tap the "⋮" icon on the top-right.
3This will reload the page, and switch you to the desktop view of Twitch.
4You'll find a thumbnail of your profile icon in the upper-right corner of the page. It will open a drop-down menu. If you're not automatically logged in to Twitch, tap Log In on the top-right, and sign in to your account.
5This will open your profile settings on a new page.
6You can find it below the "Settings" heading at the top.
7You'll find your PlayStation Network (PSN) account listed as a linked connection on this page. This button will instantly unlink your accounts.