Telex Keyboard is an Android-based keyboard that allows users to type in Vietnamese using the popular Telex input method. The keyboard is built on Android Open Source Project's keyboard and offers several features that make it stand out from the rest.

One of the most notable features of this keyboard is the ability to place tone marks according to the old scheme (òa) or new scheme (oà). Users can also turn on or off the W to Ư conversion, also known as Simple Telex. Additionally, Telex Keyboard offers four different keyboard themes to suit your style, and it includes keyboard layouts for various European and Asian languages.

By default, the keyboard comes with text correction and word suggestion features available in English and Vietnamese. Users can download dictionary packs to enable these features for other languages. To do so, they need to open the app's settings screen and choose Text correction > Additional dictionaries.

Telex Keyboard is a free app that contains no advertisements and requires no unnecessary permissions. It does not connect to the Internet, ensuring the safety of user information.