Lights Clock app for iPhone and iPad
This is a very simple app to show a big clock, you can customize the colors, also a fancy rainbow colors effect included.
You can also adjust the size of each dot, its perfect as a night clock when use black background, and choose a smaller dot size.
This is a very simple app, without much features yet, but its also totally free, zero Ads. It works for me very well, wish you found it useful.