SDWebImage / SDWebImage

Objective-C library for asynchronously downloading and caching images, with UIImageView, UIButton, and MKAnnotationView categories.

openid / AppAuth-iOS

iOS, macOS and tvOS SDK for authenticating against OAuth 2.0 and OpenID Connect providers using RFC 8252 best practices.

google / GoogleSignIn-iOS

Official SDK for adding Google account sign-in to native iOS and macOS apps.