On iOS, it's possible for App Store apps to add actions to Safari's share sheet that execute arbitrary JavaScript on the current page. This can act as a substi

On iOS, it's possible for App Store apps to add actions to Safari's share sheet that execute arbitrary JavaScript on the current page. This can act as a substitute for bookmarklets. (There's no way to have extensions run automatically, though.) From a quick search of the App Store, here are two apps that may help – I haven't tried either of them, though: Font Size App Extension: https://itunes.apple.com/us/app/font-size-app-extension/id1041572869?mt=8 https://itunes.apple.com/us/app/font-size-app-extension/id10... Safari Snippets (lets you add custom JS snippets to execute): https://itunes.apple.com/us/app/safari-snippets/id1126048257?mt=8 https://itunes.apple.com/us/app/safari-snippets/id1126048257... I'm assuming that by "I don't use apps", you just mean you don't want to use a specialized HN reader app. If you don't want to install any apps at all, I guess the above won't help… though you could always write your own app. edit: The above may be unnecessary if, as mike-cardwell suggested, the issue isn't that the bookmarklet isn't executing, but that it tries to add a style tag and isn't allowed.