Type Nine - T9 Keyboard

If you have ever used an old phone with a number keypad (like old Nokia phones) this is exactly how this works. If you haven't, the keyboard will look mostly like a number pad, with the exception of the number 1 being replaced by a symbols key and a couple of additional keys for enter, backspace, and switching to emojis.

The way Typing used to work on these old phones is that every number had a few letters assigned to it. 1 had punctuation, which is why this keyboard just has a symbols key. 2 had ABC, 3 had DEF, 4 had GHI, 5 had JKL, 6 had MNO, 7 is PQRS, 8 is TUV, and 9 is WXYZ. So for example to get the letter I you'd press the 4 key 3 times.
To speed this process up, the old phones also had a "dictionary" feature, which came down to you having to press a number for each letter once, and the phone would predict what word you're typing. So if you want to type "iPhone" you'd press 4 7 4 6 6 3 (and yes, this keyboard does have that in its dictionary). So this is how you type with Type nine. It's much easier to do if you're one handed compared to the stock keyboard and you're less likely to make mistakes.

Hi Rasmus,
It's nice to see developers coming on here to discuss their apps! ☺️

One way I can see Type Nine could be improved for VoiceOver users is by adding what VoiceOver calls "direct touch" to the keyboard (https://developer.apple.com/documentation/uikit/uiaccessibilitytraitallowsdirectinteraction)
This will pass through all taps directly to the keyboard immediately rather than only after you lift the finger from a key. It would also let you swipe over the special keys like space or backspace just fine with VO turned on.
The keyboard is very small, so I don't really need to hover over the keys to see where they are, I'm basically typing with muscle memory at this point so it would also make the keys react faster. However, I think the other views like symbols or Emoji as well as the suggestion bar above the keys should work how they do now, IE not have direct touch on them, as there's more things on those screens so they can be explored with the finger as there's a lot more information there and it can change often.
Other than that, I don't think there's anything else that needs improvement. I really like Type nine and will definitely be recommending it to more people, as you did an awesome job!

Something tells me that direct touch typing not working might be an Apple bug, because I have only seen it work on the stock keyboard, but not with third party keyboards like Type nine or SwiftKey. So this might be something you'll need to add an option for Type nine itself which would either add or remove direct touch from the keys.

For backspace, apart from the swiping left working with direct touch, the best way would probably just be to make it work how it does with every other keyboard. So if you hold it down, it would continue deleting characters until you release it. Also, there might be a good use case for 3D Touch here, where 3D touching a key would activate its alternate function.
For adding and removing words from the dictionary, this would be a good place to use the "actions" feature of VO, which lets you add additional functions to a control that you can access by swiping down or up before you double-tap an item. For an example of how this works, the built-in Mail app gives you actions on a message to mark it as read, flag, reply, delete and so on. This would probably work for the suggestions in Type nine. They might need to be changed to not activate after you lift the finger, but it would let you add actions to each word to make it the default or so on.

And as for Magic Tap, I initially couldn't think of anything, until I thought about adding words to the dictionary. The magic tap could be used to quickly change from automatic to manual mode, to make adding new words easier.

Deleting by holding the key down is fine, or at least I haven't heard anyone complaining about it. It's not as precise as swiping left to delete a word but VoiceOver does announce what's being deleted so you can keep up with it.

For swiping up and down to move through suggestions, that could certainly work as well, though keep in mind that if you add direct touch to the keyboard you'll probably have to process the down/up swipes yourself as VoiceOver won't see the gestures if you're on the keyboard, hence my suggestion of adding actions to the suggestion bar itself. Making the down/up swipes work from the keyboard would certainly be convenient.