From Xojo Documentation
This iOS Tutorial is for people who are new to programming and new to Xojo. It is an introduction to the Xojo development environment and will lead you through the development of a real iOS app.
It should take you about an hour to complete this tutorial. If you would like a shorter introduction to Xojo for iOS, take a look at the [GettingStarted:iOS QuickStart|iOS QuickStart]].
If you have experience with other programming languages, you’ll also want to check out the User Guide and Reference Guide.