Good Spirits is a drink tracker for iOS. Ever since learning about the correlation between drinking and various kinds of cancer, I've been meticulous about logging and tracking every drink I consume. Good Spirits makes this process easy: just set a weekly limit, check in your drinks, and the app will let you know when you're in the danger zone. For the craft beer drinkers, you can automatically pull new check-ins from Untappd. Free and soon-to-be open source!
I built two macOS apps that turn your desktop wallpaper into a rotating mini-art-gallery. (Art not included, though!)
MusicMessages! is a collaborative step sequencer for the iMessage App Store (iPhone, iPad). Using the simple and (hopefully) intuitive interface, you can punch in a few chords or a percussion line and send the message off to your friends, who can then make their own changes and send it back. Five instrument layers and over 40 MIDI instruments are available to use. Bonus: if you have an iPhone 7, the note buttons respond to pressure and "pop" like bubble wrap with the help of the Taptic engine!
Backgroundifier is a Mac OSX droplet-style app that converts image files of any size into pretty desktop backgrounds. Any image will work, but fine art and illustration looks the best. (You can see examples of the output on the app homepage.) There's a command line mode in addition to the GUI: if you go into the Backgroundifier.app bundle, you can either call into the Backgroundifier executable directly from Terminal (with the caveat that you can only save to and read from your ~/Pictures directory — sandboxing, sorry!), or alternatively extract the un-sandboxed command line utility from the Resources directory. On my laptop, I've even set up an Automator script that watches my primary pictures directory, automatically converts any new additions via shell script, and outputs the results to the directory I use for my desktop backgrounds. The app costs a buck, but most of it is open source. (I decided to exclude the UI nib file from the repo, at least for the time being.) It's written in Swift 2. You can find the repo here. Unfortunately, it's just a little bit out of date, but all the image conversion stuff should work fine. [more inside]