For earlier versions of my app, I was able to submit an app with just a single device screenshot that was on 5.5 inch (iPhone 6s Plus, iPhone 7 Plus, iPhone 8 Plus).
But, while uploading an update to the app now, got to know that 6.5 inch (iPhone XS Max, iPhone XR) screenshot is also required in addition to the existing 5.5-inch display screenshot.
I just want to know is this a recent change in the requirement by Apple or am I missing on something?
Moreover, is there any workaround or alternate available if I don't have iPhone XR or XS Max?
This question seems especially aged to answer now as No good answer is here. I think this will be useful to new Apple developers or flutter developers. Many need to accomplish this issue as they may not have a mac book or many apple resources.
We have two options. The first one is to use a different simulator on Xcode & MacBook or Resize screenshots images. One can use img2go.com to do this.
For the first choice, suggested simulator use
For the second option, Take screenshots on any iPhone and resize them as
Please keep in mind that applications' resized screenshots work only if the app is a 100% responsive application.