Tuur! If you use iris.io there is an option of uloading images right into the client when you post that is just sweeet! I guess you already know this but... Just in case!
Discussion
I use Damus on my phone… does iris have an app?
I have not yet found a client for Android, but I havent really been searching for it. Im into simplicity on my devices, so I rather just run it from my Vanadium Browser and it works just fine. From there you can upload photos like a charm.

I would imagine that from any browser in IOS it would work just as well.
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I installed iris as a webapp on my pixel 7, didnt know about the android app. webapp works great!