We optimize and test TradeBench for devices with a screen resolution of 1280x768 pixels or higher, which includes almost all newer tablets running either Android or Apple iOS, such as the iPad, iPad Air or iPad Mini Retina. You can use most of the TradeBench website/tools on your cellphone or other/older tablets too, although we do not officially support it. There is no app to download, just open www.tradebench.com in the internet browser on your device.