@TheVoidTLMB The "official" app is pants, regardless of platform. But fortunately there are excellent alternatives. Don't know what you're using, but Tusky is fine for Android, and I've heard good things about Metatext and Toot for iOS.
@Spinybadger Nothing runs on iOS9. Using desktop browser whenever I bother to look, which isn't often.
@TheVoidTLMB Oh. Not good. Hope you can sort something out.