Glide is a service that anyone can use to create a mobile app without doing any coding. Glide lets you take one of your Google Sheets and have the information become a mobile app. It's easy to use and you can get started in minutes. Last month I published this five minute tutorial on how to make your own mobile app with Glide.
Glide recently published their own official tutorial videos. Glide offers these eight tutorials that will walk you through each step of using Glide from sign-up through publication of your app.