A tech support app or in-app support function enables users to tap on an icon on their smartphone or tablet and access some type of support, be it a knowledge base or a form to contact your service desk.
9Apps 4.9
![국세청 홈택스 [손택스] on 9Apps](https://go.getnew.app/sg/res/jpg/f7/df/69cc2f90120ec331db2630e0f5b6-6dh.jpg?x-oss-process=style/jmq200)
