Applications

The bad news: Any apps you've installed on your iPhone won't automatically transfer over to Android, and any apps you've paid for on iOS will likely have to be purchased again.

The good news: These days, most major productivity apps are readily available on both platforms. And once you're all set up with Android, all of your apps and app data will automatically sync with Google's servers and follow you to any future Android devices.

Take a few minutes to go through Google's Play Store — either on your Android phone or via a web browser on any computer — and search for the apps you want. If you install an app onto your phone and it asks you to sign in when you first open it, make sure to use the same username or email address you used on your iPhone so that any data tied to your account will carry over.

After you've settled in, you may want to explore a bit further beyond the apps you already know. Unlike iOS, Android allows all sorts of clever tools for customizing and controlling the core user interface, and some of them can enhance your efficiency in pretty interesting ways.