A few months ago I let my individual Apple Developer Program membership expire. I have been working on other projects and have not given enough attention to my iOS apps, and though they still worked, I had not updated them in a very long time. The apps were starting to look dated, and were certainly not taking advantage of the latest development frameworks. So, I decided to stop paying Apple for the privilege of keeping outdated free apps in their store.
Rather than just letting my apps disappear, I decided to open source the code so that other people might be able to use it. The apps are written in Objective-C and C, so that may limit interest in it. But, someone may be interested enough in the seam carving algorithms to deal with the archaic languages.