This study identified the inputs, outputs, and outcomes businesses, non-profits, and government agencies can expect when planning an environmental education initiative through the use of a mobile application. Eleven eco-apps were identified out of more than 290 as offering users a uniquely mobile learning experience through use of social media, geolocation, and gaming in the palm of their hand. Results provide educators with guidance on the resources needed to create an eco-app, the design elements one should use to make a successful eco-app, and finally, the outcomes that are likely when using an app to educate and engage learners in environmental issues.