Can’t use the app after purchase – SentryView: For Tesla Cars Review

Read great review about the developer and wanted to review the Sentry videos. Plugged in my iUSB with SD card and was hoping for magic.... Oops, it only support one kind of usb stick, WTH??? Please support a more generic usb stick... such ad iUSB, Please!
Review by Model3P on SentryView: For Tesla Cars.