Are you a developer and are you struggling with designing an iOS app? Sure, you will need to know the basic development and all the various rules that normally apply to app development. 

But I would like to give you some expert advice, which I think could completely change the way you approach the subject. 

Nothing complicated, just a few tips that will really change your end result.

Let's start!

The Importance of User Experience (UX) in Designing iOS Apps

It may seem obvious, but many developers sometimes simply don't think about how a user should feel when using their app. User experience is the heart of a successful mobile application! 

The App Store is home to millions of apps, and users expect apps to be intuitive the first time they use them. 

Simplicity, in this context, does not mean a lack of functionality, but rather the ability to hide complexity behind a clear interface. 

In essence, I could advise you to:

• Minimize the number of steps required to complete an action;
• Use visual hierarchies to highlight key information;
• Avoid unnecessary decorative elements that may distract or confuse the user;

• Use animations to indicate that an action has been completed;
• Display clear error messages that offer a solution;
• Update interface states in real time to reflect changes.

Follow Apple's guidelines: Human Interface Guidelines

Apple provides the Human Interface Guidelines (HIG), a detailed document that outlines the key principles for designing iOS apps. By following these guidelines, you will not only ensure visual consistency with the operating system, but also avoid issues during the review process for publication on the App Store.

For example, among these guidelines we have the convenient integration with the iOS environment, its paradigms and its interaction models.

It's ideal to use standard UIKit components, such as buttons, tables, and tabs, to ensure a familiar experience for users.

Then, it is essential to adapt the development to the operating system updates, taking advantage of the new features introduced.

Readability

Apple emphasizes the use of clear, legible typefaces. The default font, San Francisco, has been designed to be highly readable on different screen sizes:

Don't forget: use contrasts! It's almost always a good idea.

Understanding User Needs in iOS App Development

Effective design is based on a deep understanding of end users. This approach ensures that the app meets their real needs, avoiding introducing unnecessary or superfluous features.

Before you start designing, analyze who will use the app.

What are the goals, frustrations and expectations of these people? Always remember that it develops for the people. You have to test, test and test the final result, so that it is well oiled and perfectly usable.

Prototyping and iteration

Rapid prototyping allows you to visualize and test your design before committing significant resources to development:

You can use tools like Figma or Sketch to create interactive mockups.

Finally, it is always a good idea to conduct usability tests with real users to identify critical points and areas for improvement.

Technologies and Tools for a Modern iOS App

In addition to design, choosing the right technologies and tools is essential to creating an efficient and scalable app. The iOS development environment offers a wealth of resources for developers.

1) Swift and SwiftUI

Swift is Apple's official programming language, known for its readability and security. 

Paired with SwiftUI, an interface design framework, it lets you build modern apps with less code.

In fact SwiftUI supports the declarative design, making it easier to create dynamic layouts.

Then, thanks to tools like the Live Preview, developers can see changes in real time.

2) Integration with native features

To improve the user experience, take advantage of native iOS APIs:

• Face ID / Touch ID for authentications;
• Core Data for efficient data management;
• Arkite for augmented reality features.

Common Mistakes to Avoid in iOS App Design

Do you feel like you have everything planned out and that you have already internalized the concepts I have expressed above? Great! Then I would like to leave you with one last paragraph, in which I will talk about the most common mistakes in designing iOS apps. 

1) Overload the interface

Too many elements on a screen can disorient the user. Focus on what is essential and remove distractions. A minimalist design not only improves usability, but also helps improve the performance of the app.

2) Ignoring accessibility

Not all users have the same physical or sensory capabilities. Follow accessibility principles to ensure your app is usable by all:

• Enable support for voiceover.
• Use alternative image labels and simple gesture controls.

3) Neglecting performance optimization

A slow or battery draining app will be quickly abandoned. Optimize code and resources to ensure speed and responsiveness.

If you are an iOS app developer, looking for a stimulating environment that will help you grow, send your CV to ppgad@pucrs.br, you will be evaluated for possible hiring at Pizero.

Good development!