Steven Arkonovich — Big Sky. A skill is the equivalent of an app for Alexa. With Alexa skills, you can reach new customers across the globe through more than million Alexa-enabled devices. Some Amazon analysts and investors say the financial benefits of Alexa are unclear. I work for Amazon, can I earn Developer Rewards? By building Alexa skills, you can reach new customers and make it easy for them to interact with you anywhere they go. Learn how to build engaging skills with these resources.