Months before the app is even ready I would start sending out ads about it so it can be seen then I would get the college administrators to talk about the app and give good reviews. Once that is done and the app is ready I would post flyers about it all around campus . (As a student myself I do know that students read the flyers posted) I would have to make the flyer very interesting and get the SGA at the school involved in the marketing too. Then I feel after all that we would have a successful app launch. I would invite the students to a gathering place possibly outside and have a QR code so they can download the app right then and there.