Sketch Maker for Professionals is published, open source iOS application, built using Swift 4.2 and Xcode 10.1.
Because of lack documentation on how to use the GPUImage and the increasing number of un answered questions on StackOverflow by developers who want to use this library, I've built this app to help developers around the world to easily implement the library in their iOS apps. The app is also free to download on App Store.
Sketch Maker for Professionals offers more than 30 image processing filters along with drawing and zooming abilites. Stay tuned for publishing the source code on Github!
My Role: I'm the sole author and developer from idea to version 2.5.