input assistance; typing aid
Computing term for features that help users enter text or data, such as predictive text, auto-complete, or on-screen keyboards.
This software has an input assistance feature.
With the smartphone's typing aid, text input became faster.
Similar meaning; 入力支援 is also used for input support, but 入力補助 may imply more direct assistance or aid in the input process itself.
Compound of 入力 (input) and 補助 (assistance, aid).