Understanding the Interplay Between Scoped Services and Singletons in ASP.NET Core Applications

Understanding iOS Singleton Classes and Access Control

Sharing Data Among View Controllers in Objective-C: A Comparative Analysis of Delegates, Singletons, and Controller Classes

Understanding Singletons' Methods in Objective-C: Resolving Type Mismatches in Non-Static Methods

Managing Global Data in iOS Apps: Alternatives to Singleton Classes