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1. An NSButton subclass that looks just like the Yosemite+ native window close button

   Objective-C 10 4

2. Prompts for users to sign up to your mailing list, using the MailGun API

   Swift 1

3. For easily prompting users to review your app or view your other apps

   Shell 1

4. Provides a simple convenient way of displaying an NSError and it's properties in a UIAlertView. To use it simply import it into your project and call [ErrorAlert showError:] passing it an NSError o…

   Objective-C

5. Displays alerts prompting users to review your app or rate it on the Mac App Store.

   Swift 3 2

6. A series of useful helpers for working with Core Data

   Objective-C