BTW. this may seem like a duplicate of the shadow button issue, but they have a monotonous background, in my case the background is an image, so a simple border does not fix the problem.
When creating an application for iPhone / Pad, I noticed that: UIButton appears with a white space or a line at the bottom if the background is not white.

- Any suggestions?
- Can't get rid of him?

PS. Jay Wardell got it. Although I did not use the image in the button, changing it to Custom Type and rounding the corners did the trick. TY. Jay, send this as an answer, I will mark it as correct. The one on the left looks perfect. Now I just need to change all of my 100 or so to Custom and round their corners, because Xcode does not correctly crop the Round Rect button.

source share