Having been a fan of Post Secret for years I was excited to see what the app would be like. It is addictive and different from the website, in that each post made shows up immediately. You can view geographically or by time posted. It is not curated like the website. Maybe a spell check feature will come in the future. It is a paid app and available for the Android or iPhone. Here is a link. This is an unpaid and unsolicited endorsement, from a fan of the Post Secret Project.