Deep linking between apps on Android almost works for the kind of apps that are really just specialized browsers. For example if I am in a Reddit app and click

Deep linking between apps on Android almost works for the kind of apps that are really just specialized browsers. For example if I am in a Reddit app and click a link to an HN comment thread, it can open the thread in the HN app. In practice it may fail for various reasons: * The HN app has no registered to be opened for HN URLs. * The HN app opens, but ignores the URL and just shows the front page. * The Reddit app is using a built-in browser that does not (or cannot) check URL hooks for other apps.