SwiftData in iOS 17: A Game-Changer in iOS Development 🚀

Persist data in your app intuitively with the Swift native persistence framework.

Brahim Siempay
4 min readJun 7


Hello, techno-savants! 🖖 I know the allure of a new iOS update keeps you on your toes, and iOS 17 is no different. This time around, Apple has sprinkled some magic dust, and voila, we have the SwiftData framework, promising to be a game-changer. Let’s dive in!

What Is This Upcoming Feature in iOS 17? 🎁

iOS 17 is introducing SwiftData, a new native persistence framework. Essentially, it’s a storage system that stores data for your apps, except now, it’s more intuitive and way more Swift-like! 🧙‍♂️

What is SwiftData? 💽

In the simplest terms, SwiftData is a framework that aims to make data persistence as smooth as butter. Gone are the days when you had to wrangle with SQLite or wrestle with CoreData. SwiftData is set to make the data persistence process much more…Swift! 🦸‍♀️

Why is SwiftData a Game Changer? ⚔️

So, why all the fuss about SwiftData? Isn’t CoreData good enough? Well, here’s where SwiftData throws a curveball. With SwiftData, you define your schema using Swift types that conform to the `PersistentModel` protocol. These models are created using the `@Model` macro, a syntax sugar as sweet as it gets! Plus, it supports implicit saving, automatically persisting your changes during UI life cycle events or even on a timer after the context changes. No more manual saving woes! 🥳

How is SwiftData Better than CoreData? 🧐

CoreData is indeed a strong player, but SwiftData, well, it plays on another level. Unlike CoreData, which requires you to manage `NSManagedObject` instances and do some boilerplate context saving, SwiftData provides a more intuitive, Swift-like approach. It reduces the cognitive load with its automatic data-saving…



Brahim Siempay

Senior iOS engineer, Tech Geek, Writer, and Otako howtoinswift.tech

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