Hợp âm guitar Việt is a lifestyle application for Android developed by t3bgroup. This app consists of over 10,689 Vietnamese and international song chords that are continuously updated with the latest songs. The app has an intuitive and fast search interface that can be customized according to the user's preference. It allows users to search for a song by any musical phrase in the song, or by the song's abbreviation. It also includes a search function by song title, author's name, and author's abbreviation.

One of the most impressive features of Hợp âm guitar Việt is that it displays the chords of the song and allows users to change the key of the song to match their vocal range. The app also includes a chord lookup function, chord position diagrams, and eight chord positions for each chord. Additionally, it has an automatic scrolling lyrics function and a zoom in/out function. The app can be used offline, without Wifi or 3G. Moreover, the app is ad-free, and the developers are committed to providing an ad-free experience for users.