Aspects of the present invention facilitate the customization of binary application user interfaces without modification of the underlying source code. Embodiments described herein can provide for hands-free operation or accessibility services, such as touchless operation of compiled applications, with minimal intervention. Described embodiments can automatically interface with the touch-based operating system to generate hands-free commands that, when detected (e.g., voice detection), can cause corresponding touch-based commands to be executed. Embodiments can utilize audio inputs, by way of example, to facilitate hands-free interaction with the touch-based operating system and applications executing thereon.