After more than 15 years covering everything Apple, it’s with a heavy heart we announce that we will no longer be publishing new content on iMore and the iMore forums will be closing as of November 1st, 2024.
If you don't need the user to stay within the app you can just use the URL scheme for opening the mail or SMS app. The benefit is the UI the user is familiar with will be displayed and almost for free development-wise.