aTstock 유안타증권 is a smart trading app developed by ATsolutions in partnership with 유안타증권. This free app is available on the Android platform and has won the 'Smart App Award 2011' in the T stock 2 category and the 'Technology Innovation Award' and 'Securities Information Field Award.'

The app offers a range of features for users, including quick access to favorite stock quotes, customizable home screens, and desktop widgets that provide real-time stock quotes without opening the app. It also offers convenient trading with real-time information on bidding, trading, and trading participants, as well as various stock helper information such as stock news, company information, and power stock search.

This app supports all Android devices with a resolution of QVGA, HVGA, WVGA, WSVGA, and Android OS 2.0 or later. However, users need to authenticate their identity with their securities company ID and password to use the app's ordering menu. It is important to note that the app may not work on smartphones that are arbitrarily modified or rooted.