Platform Requirements ScreenFlow runs as a 64-bit application under OS X 10.9.5 or later, which improves overall performance, memory usage, export speed, and scalability. ScreenFlow runs on these platforms: Intel-based Mac with 64-bit processor (Core i3 recommended) + Display Operating Systems: – OS X 10.11 El Capitan – OS X 10.10 Yosemite – iOS Recording requires iOS 8 + Mac OS X 10.10 Yosemite + lightning connection to USB Minimum 2 GB RAM 20 GB hard drive Online Help browser requirements: Safari Apple support GPU Note: Cameras using an HDV codec are not supported.