The author of this text is Kyle Kelly-Yahner, and he shares his personal experience with creating a complex sign-up process for an app. He explains that even though he created a dream app, he wouldn't download it if the sign-up process was too complicated. The good folks at Parse developed Anyphone, an easy phone number based login service powered by Twilio, to address this issue. Fosco Marotto, a Parse Developer Advocate, will guide users through building this open source app that sends confirmation codes via text using Parse Cloud Code and Twilio.