Some times ago I've received a legal issue from monotype.com. They told that I was using font Helvetica Neue in my iOS app since 2015 to 2020 and now I need to pay for this font for all these years. I was shocked by that. I thought that this font is free for using in iOS app and it always was. Also, this font preinstalled in iOS and macOS.
Can anyone help me and answer the question - can I use font Helvetica Neue in iOS 14 App for free? Thanks in advance.