Where can I find and download the YI Action app?(YI 4K Action Camera) You can find and download our YI Action app on Apple's App Store (iOS) and Google's Play Store (Android) separately. Related articles Where can I download YI Action Camera App?(YI 4K Action Camera) How do I update the YI 4K Action Camera firmware version? Is there a QR code for YI 4K Action Camera? On what phones can I use YI Action app? Where can I find and download the YI Home app?