In this chapter, we created a useful and fun app that you can use to conduct a digital raffle. We explored global and local variables along with many facets of the Texting Component to send and receive text messages. We also learned about some advanced blocks related to lists—selecting random list items, searching for an item on a list, and removing an item. Finally, we explored an important fundamental concept of programming—loops. We saw how loops enabled us to repeat behaviors (a stack of blocks) multiple times.

In the next chapter, we will provide some tips on expanding your mobile app development skills with designing hints and sharing options.