Keeble is an iOS keyboard that allows users with fine motor-challenges, switch users and users with vision impairments to type in almost any app. The keyboard offers word prediction, timing options, Select on Release, Select on Dwell, auditory feedback, and other accessibility features. It also fully supports Switch Control and Voice Over. Keeble works in two ways - making it easier to type, and speeding up typing. Visually, it’s highly customizable - from colors to a wide range of fonts, including a dyslexia font. It’s also designed to respond in ways that help reduce typos and slipups– selecting keys on release and speaking as you type for example. The predictive text feature offers suggestions based on what you’re typing. This not only saves keystrokes - it can reduce typing effort by up to 60%
https://www.assistiveware.com/products/keeble
https://apps.apple.com/us/app/keeble/id918497054