Should I use Core Data?

Question

The next time you need to store data, you should have a better idea of your options. Core Data is unnecessary for random pieces of unrelated data, but it's a perfect fit for a large, relational data set. The defaults system is ideal for small, random pieces of unrelated data, such as settings or the user's preferences.

What is Core Data good for?

Core Data is a framework that you use to manage the model layer objects in your application. It provides generalized and automated solutions to common tasks associated with object life cycle and object graph management, including persistence.

Should I use Core Data or realm?

If your project requires encryption or speed, then Realm is an obvious choice. If your project has a complex data model that changes frequently, then Core Data might be a better choice.

Is Core Data slow?

Coredata is very slow; swift.

When should you save Core Data?

Best Core Data save strategy (when to save data to disk)1save context at the end of every change.2save context only on app's exit (like in Apple's samples)3save context on app's exit, going to background or becoming not active (incoming phone call for example)

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