If you have been looking at the many iPhone images displaying clean and stylish geometric overlays and have been wondering how to achieve the effect, you probably want to try Tangent. The app is free right now, so by all means go and get it while the current offer lasts.
Tangent is a photo tool bringing together photography and design. The basic version of the app comes with a rich collection of preset styles, plus shapes and patterns that can be combined together freely. Color and blend mode for each design element can be modified for different effects. Extra paid or free content (shapes and patterns) is available for download in-app.
Tangent is compatible with iPhone and iPad. You can download a free copy of the app for a limited time only.