When you start building apps for iOS, it's important to know the differences between Swift and Objective-C. This will help you make better choices. Here are the main points to consider:

1. Easy to Read: Swift has a simpler and clearer way of writing code. For example, if you want to make a list of fruits in Swift, you write it like this:

   let fruits = ["Apple", "Banana", "Cherry"]
   

   But in Objective-C, it looks more complicated:

   NSArray *fruits = @[@"Apple", @"Banana", @"Cherry"];
   

2. Safety First: Swift was created with safety in mind. It uses something called optionals to avoid errors that can happen with empty values. For example:

   var name: String? = nil
   

   Here, name can either hold a word or be empty. This helps developers manage missing values better.

3. Fast Performance: Swift is usually faster than Objective-C. It works closely with C, so it's a good pick if your app needs to run really quickly.

4. Working Together: You can mix Swift and Objective-C in the same app, but it can be tricky in Objective-C. Swift, on the other hand, can easily use code from Objective-C without much trouble.

5. Growing Community: Swift is getting better all the time, and it has lots of support from Apple and a growing number of developers. More and more new developers are choosing Swift, while Objective-C is being used less.

In short, whether you choose Swift or Objective-C depends on what your project needs, the code you already have, and how you like to work. Swift's modern features make it a great choice for new iOS projects.