My younger brother, who is currently in 10th grade, recently published his first App and it’s live in the app store. The App is called identicolor and you can download it here. The app provides the user with the color (as a string) of any spot the user taps in an image opened with the app. I am so proud of him for publishing his first app; it certainly pushes me to keep learning as much as possible.
PS. If you aren’t sure if you are colorblind, this could be a fun test to find out.