On February 10, 2015, KTFM launched an alternative rock format on its HD2 sub channel, branded as "103.3 The App", relayed on translator K277CX (103.3 FM) in Terrell Wells. The first song on "The App" was "Take Me to Church" by Hozier. The station was named "The App" because it heavily promoted listeners to download the app from iTunes and/or Google Play due to the station's weak signal over San Antonio, in addition to the lack of HD radios. Throughout the month of February and March, "The App" started off with 10,000 songs in a row, with a blend of 90's and 2000's rock and alternative mixed with today's alternative but tends to be more indie rock leaning. Eventually, the station began airing short commercial breaks and promoted concerts, such as the Maverick Music Festival and Vans Warped Tour, and bands such as Smashing Pumpkins, Awolnation, Falling in Reverse, and Breaking Benjamin. By late 2015, the App has hosted concerts in the Alamo Lounge, owned and operated by Alpha Media, with bands such as Jimmy Eat World, Saint Motel, Blue October, Nothing But Thieves, Colours, and several local rock bands. By late April 2015, The App added one live personality, DJ Mighty Iris, and until May 2016, more personalities have been added such as REZ, Sam (from Jack FM), and even a morning show hosted by Tony Cortez from Energy 94.1.