If at any point you think it's a good idea to build a "user tour" in your app, stop and go for walk. Your app should be self-explanatory. If your users are confused (or your data shows low participation rates on key features), you need to revisit these design decisions: 1. Navigation 2. Hierarchy & layout 3. Empty states 4. Copywriting You have to assume the average mobile app user has the intelligence of a lizard. Make it so abundantly obvious how the app works—even if it comes at the sacrifice of power users. After all, you need users before you can have power users.