Turning autocorrect on/off for your keyboard is quite simple.

Via Neurokeys App

- Go to Neurokeys app > Tap Ξ

- Go to Keyboard Settings > Turn on/off "Autocorrection"

Via Neurokeys Keyboard:

- Press the Neurokeys icon on the top left of your keyboard

- Press the "Aa" icon > turn it on/off

Note: A Green icon always indicate that the setting is turned on, whilst if the icon is grey it means that the settings is turned off.