A system described herein may facilitate the retrieval and installation of an application (or “app”) at a user device, based on a single user interaction (e.g., a single click, double click, selection, etc.). A one-touch app install (“OAI”) system may communicate with an application programming interface (“API”) that is installed on the user device to provide an app installation package for a requested app. the API may have appropriate permissions with an operating system of the user device to install the app on the user device.