PlayAlways from Guilherme Rambo is an open source tool operating from the MacOS menu bar allowing you to quickly create iOS, macOS, or tvOS playgrounds and an Xcode extension that allows you to create a playground from a code selection within Xcode.
To create a playground based on a code selection you must have the Mac menu bar tool running.
Here’s an image from the readme showing the plugin options in Xcode.
You can find PlayAlways on Github here.
A nice tool for quickly creating Swift playgrounds.
Bob Lee has put together a list of of many great Xcode shortcuts to help you get the most out of your time in the Xcode 8 environment.
Each shortcut complete with gif animations so you can see exactly what they do.
A handy series of guides for those looking to increase their efficiency in Xcode.
Eject is an open source tool allowing you to transition a UI built within Xcode’s interface builder into Swift code.
The Interface Builder is fantastic for laying out an interface, but it can become a hindrance as your interface becomes more complex and dynamic. With Eject you can translate your Xibs into source code with support for constraints, outlets, labels and more.
While you don’t get code that compiles straight out it definitely makes for a fast start.
You can find Eject on Github here.
A handy tool for those taking an interface builder layout and turning it into code.
AppWage is an open source Mac OS based iTunes reporting tool from Hankinsoft with a great interface for viewing app sales information, track competition and more using iTunes Connect data.
With AppWage you can view sales reports, reviews, rankings, and track the competition. You can send daily emails using your own SMTP server, and automatically translate app reviews.
You can find AppWage on the homepage here.
You can find the source code on Github here.
A nice tool for tracking app data.
IQScreenRuler is an open source app from Iftekar Quarashi that provides a pixel perfect ruler to aid in the perfect positioning of any interface elements.
IQScreenRuler provides a 4 side ruler, a free hand ruler that can be rotated, the ability to change the scale factor, and aspect ratio, and more.
This video shows IQScreenRuler in action:
You can find IQScreenRuler on Github here.
You can download the Screen Ruler App on the App store.
A great library to help QA engineers make sure that the interface is laid out perfectly.