For mobile devices, ChatON was available on Android (v2.2 or higher), Bada (v2.0 or higher), iOS (v4.3 or higher), BlackBerry (touch devices with v6.0 or higher, non-touch devices with v5.0 or higher), and Windows Mobile (v6.5 only for Omnia 2, and v7.0 for devices made by Samsung).
For Windows PC, ChatON runs on PCs with Windows XP or higher.