You don't need to use the official Mastodon apps, they're not the best way to use Mastodon. The official apps only arrived last year, and they were intended as "Fisher Price My First Mastodon" things with a restricted set of features.
Third party apps have been around longer than official ones, and include way more features. You can sign in with the same account on all apps.
On Android try Tusky, Fedilab, Megalodon, Tooot
On iPhone/iPad, try Toot!, Ice Cubes, Ivory, Mona
@feditips You forgot the best Android app: Moshidon.
It's still pretty experimental isn't it?
@feditips I would say it's more stable now and less experimental. It's added a lot of great features, and slowed down releases by quite a bit. It now has a nightly build for more experimental releases. It's now more similar to Megalodon or Tusky in release schedule and feature adding.
I will have to take a look!