Is Messages on iPhone 12 different to later upgrades of iPhone
I have an iPhone 12 and I was viewing Tips and it showed how to create a variety of text effects, such as Italic, Big, Exploding, etc. This done by highlighting the text and pressing a Button that looks similar to A=. I asm running the latest iOS version on my phone but I do not have the A= button on Messages on my phone. Is this option only available on later versions of the iPhone, such as iPhone 16?
iPhone 12 mini, iOS 18