Looking for a t9 keyboard

Hi,
I’m looping for a nice t9 keyboard used for my iPhone Or Rother iDevices. This can be either a separate Bluetooth unit that has only 12 keys and is reasonably cheap or an app. I’ve tried type nine – t9 keyboard developed by Rasmus Porsager but typing is not that dcomfortable.
I want to use this keyboard for dialing numbers and typing text in eit fields or note takers. Although I really appreciate Braille screen input, I miss t9 typing.
Thank you for any suggestions.
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