How do I sign up for Peak? Laura Krajewski December 13, 2018 20:54 Updated Follow iPhone users can download the Peak Money app from the App Store. If you are on your iPhone now, click here to go directly to the app in the App Store. Related articles What is a peak? Who can sign up for Peak? How do I add money to my Peak account? How do I know the Peak app is secure? Can I use Peak if I live outside of the U.S.? Comments 0 comments Please sign in to leave a comment.