It was released on 24 June 2015 for Microsoft Windows, Mac OS X and iOS.[20] Barlow wanted to launch the game on all platforms simultaneously, as he was unsure where the audience would be.[21] "If I'd just gone for just one I'd have lost a lot of the potential audience," he commented.[22] Barlow found that playing Her Story on mobile devices is a "'sofa' experience".[23] He also noted that it felt "natural" for it to be released on mobile devices, as they are regularly used to watch videos and search the internet; similar tasks are used as gameplay mechanics in Her Story.[23] The iPhone's smaller pixel size of 640×480 as opposed to 800×600 led to Barlow's doubts of a release on the platform, but he was influenced to release it upon receiving positive feedback through testing.[22] As development neared completion, the game underwent testing, which allowed Barlow to "balance some aspects" and "polish items together".[24] An Android version was released on 29 June 2016.[25] Her Story runs on the Unity game engine.[26]