How to display the copyright icon in UILabel text?

In interface builder try Option and G together.

If you don't have an Option key, try with ALT.

If your source files are in UTF-8, what they should be, this should work just fine. Otherwise you should use .strings-files in combination with the NSLocalizedString() macro and put your text into UTF-16 files.

Works for me: myUILabel.text = @"© by me";

_{(source: hillrippers.ch)}

Edit: Now that I see that you've tried to insert the symbol as HTML entity - this does not work, just insert the symbol as it appears.