Discord is not inaccessible. It's far from being a shining example of accessibility, but after a ton of persistent chatting with the Discord people they finally started turning it around.

Android supposedly gives the best experience. I haven't used Android for a few years so I can't comment on that, but it sounds like things still work pretty well there.
The PC client used to be pretty bad, but over the last few months things have improved considerably, with most if not all of the most important controls being labeled. The interface is a bit cluttered with a lot of stuff going on, but as long as you use your screen reader's landmark and form field navigation keystrokes you should get to grips with it pretty easily. If you don't have an Android device this is definitely the recommended way of accessing it.

Discord on iOS is pretty terrible, and as far as I know they literally have one guy working on it so it might be a while until this starts changing. You can read and write chats, but just about every other control is not labeled and VoiceOver just clicks on them. iOS 13 puts in a slight effort to identify what they do and you can figure them out with some persistence, but considering the options you get change based on if you're just looking at a server or join a voice channel or are doing something else the experience isn't pleasant and I mainly restrict my use of the iOS app to replying to messages via notifications.

So, in summary use the computer version if you don't mind. If you're one of the people that does 99% of their internet things on an iOS device and almost never use a computer, you can just about get by with the iOS app but it's rather frustrating.

Discord isn’t accessible.

Okay so I've aactually used all three clients, though my information on some of them might be a bit outdated.

ANdroid.

This one is almost good. You can easily access and create servers. The recent updates have made it impossible to tell a person's status without navigating to their profile and for some reason tapping and holding on text you posted in a server brings up info on you. THis requires you to two-finger tap and hope you aimed properly in order to bring up the menu to edit/delete your text. It's more than useable.

Desktop. This one I have the least experience with. Last time I used it was a broken mess with hashes instead of names for every server and non-existent screen reader nabigation. Sounds like it's gotten better lately.

iOS. THis one is pretty crap. It's where the Android client used to be. You can't easily switch serbers and scrolling text in the main view is a colossal pain.

I've bitched at the debs for months with only moderate improvement. We are not a priority and good luck getting your friends to use a different program.

The iOS app is somewhat accessible, it takes him playing around with though. It’s one of those apps you have to figure it out. The top left button will not say anything, but when you press it you can click stuff. The android app is the most accessible though. Works really well. Feel free to get a hold of me if you have any questions.

Surprisingly, the Android app is quite accessible... Not all the buttons are labelled, but it's perfectly usable.

You can’t make the text larger so when I’m on my phone I have to screenshot messages to see them.

I made a $1 a while back and even since that video things have improved considerably, though it's still not perfect. The rest of the replies to this post have pretty much covered everything else I'd have to say and I can confirm everything they do say: android is the best experience, but you can just about get away with any of the clients (except the linux one because electron apps aren't accessible on linux).

hi,

discord for windows is accessible with NVDA.

it is 100% accessible. anyone that argues against this clearly didn't use discord after the last update.