SDWebImage / SDWebImage

Asynchronous image downloader with cache support as a UIImageView category

google / promises

Promises is a modern framework that provides a synchronization construct for Swift and Objective-C.

realm / realm-swift

Realm is a mobile database: a replacement for Core Data & SQLite

syncthing / syncthing-macos

Official frugal and native macOS Syncthing application bundle

couchbase / couchbase-lite-ios

Lightweight, embedded, syncable NoSQL database engine for iOS and MacOS apps.