Your iPhone already comes with everything you need to capture amazing shots. You are going to need proper lighting to improve the quality of your videos. The ULANZI U-Rig Light Smartphone Rig has you covered. It has an adjustable range of 2500K to 9000k. It has a 5000mAh battery that you can use to charge your smartphone.
This rig comes with bottom support, so you can easily put it on a desk without worrying about it tipping over. It comes with 1/4-20″ screw holes, so you can use this on your tripod. You can also attach your microphones and other accessories to it. Brightness and color temperature can be changed through the side handle.[where to get it]