Problem
When smartphones based on the Android operating system were first introduced, there were relatively few applications, or "apps," available for them. Now, there are many more apps available for Android-based smartphones. Are these apps substitutes or complements for smartphones? How has the increase in the availability of apps for these smartphones affected the demand or Apple iPhones? Briefly explain.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.