FSCalendar
FSCalendar is an open-source iOS library for creating customizable calendar views in Swift and Objective-C applications. It provides a fully-featured calendar component with support for events, date selection, and various display modes like month, week, and day views. The library is designed to be highly flexible, allowing developers to easily integrate and style calendars to match their app's design.
Developers should use FSCalendar when building iOS apps that require calendar functionality, such as scheduling, booking, or event management features. It is particularly valuable for avoiding the complexity of building a calendar from scratch, as it handles date calculations, gestures, and animations efficiently. Use cases include fitness trackers, appointment apps, or any application where users need to view or select dates interactively.