As most of us know that own either of these when you try to put a 4k video on your device from your Mavic you get a " Unsupported Video Format " so i have been looking online to see what is out there and found this. Play 4K video on your iPhone 7 – new method of 2017 | Softorino just plug your device in drag your 4k file into application and it loads in seconds then its in your video app on your ios device. you get a 14 day free trial then a lifetime license for £15.90 / $19.95. just thought id share this.