The iPhone's native camera app can not manually control exposure in terms of shutter speed, no pro mode, no manual mode, no intervalometer, timelapse produced in app without single frames. Only some simple exposure compensation is available as well as touching the point where to focus and measure light. But I found two apps from the iOS app store where we actually get lots of manual controls. This short video shows that the iPhone camera actually is very good and capable with third party apps. The video is a follow-up to a question of my Dad who watched my two videos on Star Trails with smartphones: Huawei P30 Pro: https://www.youtube.com/watch?v=00iCB3Cea8w Samsung Galaxy S10+: https://www.youtube.com/watch?v=-5xzX9XjM0Q He wanted to know, whether he can produce such footage with his iPhone. Short answer: yes he can :)