iOS accounts for 27.6% of the world’s total operating system market share. Talking about the US alone, this market share has increased to 56.8%, and we can observe that more than half of the smartphone user population in the US is using iPhones or other iOS-operated devices. 

Having noted that there is no need to further define the vastness of the iOS operating system. However, devices running on this operating system can only deliver the purpose with the support of some software and apps. These are called iOS apps. Considering the large pool o iOS users, developing apps for iOS devices has become a significant business idea. Be it entertainment, education, lifestyle, communication, social media, or gaming, everything is accessed with apps only, and being a part of this digital journey brings fortune to those who take steps. 

There are millions of iOS steps wandering the app market, creating tough competition for newcomers. In such a scenario, it becomes important that the new apps being developed are built on strong fundamentals and deliver the purpose for the user. 

This blog will talk about the complete lifecycle of an iOS app development project. Let’s get started- 

What Is iOS? – A Brief Introduction

Mobile operating systems' market share worldwide
Mobile operating systems’ market share worldwide from 1st quarter 2009 to 4th quarter 2022 – Statista
Mobile Operating System Market Share United States Of America Mar 2022 – Mar 2023 – gs.statcounter

Steps to Build an iOS Mobile App 

iOS App Development Roadmap

Step 1: Choose the Right Development Tools

There is a number of integrated development environments that can be used for developing the iOS mobile application. Some famous names in the segment are Xcode, Appcode, Atom, Sublime Text 3, CodeRunner 2, etc. While Xcode dominates the IDE segment of developing iOS applications, all other names also have their own core competencies. Here are some brief about alternatives of Xcode that can be used for iOS app development- 

  • Appcode- A smart IDE for iOS and macOS development, providing fast execution. 
  • Atom- designed and developed by GitHub, it provides a slick programming environment to develop iOS apps. 
  • SublimeText 3- A functional, clean, and fast code editor with a multi-edit mode that provides an exclusive programming environment to develop software with innovative features.


xcode logo

Xcode is the best IDE that can be used to develop apps and software for iOS devices. It is Apple’s integrated development environment that assists in developing software for different Apple’s platforms which include iOS, tvOS, iPadOS, watchOS, and macOS. One of the core benefits of using Xcode is that it supports multiple languages including Swift, Objective-C, Objective- C++, C, C++, Python, Java, and much more. Other benefits of using Xcode are its user-friendly interface, excellent support for code completion, high-end application testing, built-in developer tool, customization, and much more. However, in order to develop an app with Xcode IDE, one has to download and install it first. Let’s understand the steps for the same. 

Steps to Download and Install Xcode :

1. First of all, download Xcode from Apple Developer Website by signing in with your iTunes account id. Type the version you prefer and download Xcode_x_x_x.xip. Once the download has been completed, click on .xip to extract it. If you are using multiple versions, rename the file to “Xcode11.x.x” and drag the application to application folder. Now open the terminal and type sudo xcode-select -switch /Applications/  Replace x.x.x with version number. 

2. Download the command line tool .dmg. Once it has been downloaded, open the file. It is going to look something like this. 

Install Xcode

Double-click the box and now follow the prompts to install the CLT. it might take a few minutes to complete. 

3. Open the application folder and open the new version of Xcode. It may prompt you to install the additional components. Take a few minutes to install the additional components. Once the components have been installed, Xcode will launch. 

Step 2: Plan the App 

Having a basic vision clear about the app is a good idea. The software or tool we plan to develop must belong to a genre and have a particular purpose to deliver to the users. Similarly, the segment of the target audience should also be known before starting the app development as it helps take a lot of huge decisions during the process. A wireframe should be prepared that can work as the blueprint of the overall app development journey. This blueprint should carry all information about the target audience, the vision, and purpose of the app, the features it should consist, genre it will belong to, and much more. 

Step 3: Design the User Interface 

The user interface says a lot about the application as it is the first impression to the user. Here are some tips for designing the user interface for iOS apps- 

Content formatting- the content layout must fit the screen of any device. Users must be able to see primary content without zooming in, zooming out, or scrolling through the screen. 

  • Touch controls– the UI elements should be easy to touch and natural to feel when the user is using the app. 
  • Hit targets– the touch points for the different functions must be at least 44 points x 44 points so users can tap accurately.
  • Text Size- the text on the user interface must be at least 11 points so it is read from a legible distance without zooming in. 
  • Contrast– the contrast between text color and background should be suitable so users don’t have to focus in order to read the text. 
  • Spacing– text overlapping must be avoided at any cost. Texts having not sufficient space or too much space might drag the user away. 
  • High resolution– images being used on UI must be of high resolution and should not appear blurry to users. 
  • Distortion– the images should be used in perfect ratio to enhance the look. 
  • Alignment– the alignment of information such as text, images, and buttons should be aligned so that users can find out how the data is related to each other. 

Cta 1 ios apple

Step 4: Code the App

Now comes the part of core development in Xcode which consists of the front-end and back-end development. For the same, the first requirement is creating a new project in Xcode. One can take the following steps to create a new project in Xcode- 

  • Download Xcode and launch it on an Apple platform. 
  • Select “Create a new Xcode project” in the welcome window, or navigate to File > New > Project. 
  • Choose the template (iOS, macOS, watchOS, Cross-platform).
  • Fill out the required information. 
  • Select your preferred language and user interface (e.g. Swift and SwiftUI).
  • Once you have selected the preferred language, you can navigate to file or folder from the code editor’s left panel. The right panel also called the Uility Area is going to help you deal with views or components in the storyboard. Other than that, the top toolbar consists of run and stop buttons. The bottom of code areas carries tools like debug/console area, breakpoint, and runtime tools. 
  • Now open Main.storyboard in the project directory. It is a file that helps you layout all the components including buttons, labels, tabs, lists, navigation bars, and much more. 
  • Select the device destination from the Xcode screen’s top left near Run/Stop button. Press Command ⌘ + R to run the app or click the run button, as it will initiate iOS simulator and run your app. For running the app on other real devices, connect the device to Mac via cable. The device will automatically be displayed in list of device destinations, select the device and press Command ⌘ + R

Step 5: Test the App 

Developing the app might not be sufficient as long as the application is not functioning properly. For the same, it is important to test the app. Here are some benefits of conducting the app testing before deploying it for the use of the target audience- 

  • Better UI/UX- during the testing phase, developers use the app from an end user’s perspective. So they can quickly identify if the UI/UX of the application is working as per the expectation of end users. 
  • Proper functioning– testing helps ensure that all the application functions are working without any glitches or bugs. Moreover, it also helps analyze the app’s performance under different load conditions and changing networks. 
  • Cost saving- app testing might demand some bucks during the development process, but it saves a lot of costs once the application has been deployed. One doesn’t have to introduce updates and fix the bugs every time user faces the new one. 
  • Enhance user experience- when the app has passed multiple tests in terms of performance, the chances of the app carrying any bugs reduces. So, the overall experience of users enhances.

There are different types of app testing that are performed to make sure that the software can operate efficiently and deliver its purpose in various circumstances. Some of the major testing which are conducted for approximately every other app are- 

Test Purpose 
Functional Testing App installs and launches correctlySing up and login is seamless Test boxes, buttons, icons, menus functions properly Push notifications appears at right intervalTransactions and purchases are completed seamlessly 
Interruption Testing Incoming or phone calls while an application is running Incoming messages or SMS when an application is running Low battery when an application is running If the device is plugged in or out when an application is running Device shuts down when an application is running OS upgrade occurs when an application is running Restoration and loss of network when an application is running 
Localization Testing Features that are designed to support local audiences of different markets are working efficiently
Speed Testing Helps make sure that the application is running at the expected speed without fluctuating
Memory Leak Testing The app must remember the temporary details about the users tto navigate them toward very next step
Usability Testing Smooth and visually appealing design and layout High degree of intuitiveness Quick response time 
Performance Testing Efficient performance testing- installation and login time, battery consumption, memory consumption Network performance- delay, errors or pauses in receiving digital information and network API/Server performance- formation and speed of formation of data transfer from back-end to front-end Recovery capabilities- built-in recovery and backup functions 
Security Testing Utmost privacy and confidentiality of personal data No information is being shared with consent and permission Data Confidentiality  

Step 6: App Deployment on the App Store 

Once the app has passed several testing phases and the performance of the app is satisfactory to developers, owners, and testers, the very next step is to deploy the application on Apple App Store. It helps make the application available to the target audience. Let’s understand the complete landscape of deploying applications on the app store. 

Best App Store Alternatives For iOS Users in 2023

Requirements for Submitting an App to The App Store 

  • Create a developer account and access the app store connect. Getting a developer account is necessary to deploy the app. It costs $99 a year to get the account. Having created the account, you can access App Store Connect. 
  • Now you fill in the product page, which carries information about the platform, name, primary language, bundle ID, SKU, and User Access of your app. 
Submitting an App to The App Store
  • Set Roles, Certificates, Identifiers & Profiles. For the same, developers need permission to create certificates and provisioning profiles. After getting the necessary permission, developers can now sign their app and specify the identifier along with the app’s capabilities in the certificates, identifiers & profile section. 
  • Now, the developer will assemble the app’s build and upload it. To do the same, Open your app in Xcode, enter in Signing and Capabilities section, select the right account, proceed to the General section, and set the build’s version to upload. Set your app version to 1.0.0 if you are publishing a new app, or increment the build version if you are publishing an update.
  • Once you have entered all the required information, proceed to the “Product” menu and select “Archive” to package your app. After the packaging process is complete, the “Archives” window will appear, where you can manage all the archives created by Xcode. Next, click on the “Distribute App” button and upload your build to App Store Connect. Xcode will automatically generate all the necessary certificates and notify you if any errors occur.
  • Having performed the above tasks, fill in the version information such as uploading the screenshots, app previews, promotional text, description, keywords, marketing URL, icons, etc. 
  • Choose the release date for your app, set the age rating, and submit your app for the review. 

How To Submit An App To App Store

Step 7: Promoting the App 

Apple App Store is flooded with thousands of apps every now and then. So, uploading an app and attracting a vast audience base is not that easy. For the same, promotional activities for the app plays a core role in bringing the application to users’ attention. Marketing strategies help inform the audience about the availability and capabilities of the app. Some of the best promotional strategies that can be used post-deployment are- 

  • Customer research 
  • Influencer marketing 
  • Using the existing website to promote the app 
  • Email marketing 
  • Teaser video 
  • Consider alternative app store 
  • Applying for the awards 
  • SEO tactics 
  • Promote on right social media platforms 
  • Create eye-catching icons 
  • App store optimization 
  • Build an excellent landing page 
  • Social media marketing 
  • Featuring on mobile app review sites 

Tools Required to Build an iOS

AppDev course hero
Learn the Basics of Xcode, Swift Ui, and Ui Kit to Create Compelling iOS Apps. – Apple

There are a number of tools and technologies that makes iOS app development even sleeker and more advanced. The tools are- 

Tools Description 
XcodeHelps create a graphical interface without writing the codes. Allows building, install, and run iOS apps on Mac as well as debug them in a simulator 
AppCode An integrated development environment supporting multiple programming languages Assists in writing clean code Helps debug the app with built-in integrations and tools
Transporter Helps upload multiple files simultaneously to speed up delivery process Maintain the records o previous deliveries
Swift (a programming language)Advanced control flowAutomatic memory management Effective error handling Functional programming Supports inferred types 
Simulator Keyboard and touch support for watchOS, iOS, tvOS. Assists in debugging and prototyping applications. Helps to modify the graphics of mobile applications. 
Cocoapods Eliminates dependency conflicts on libraryEasy incorporation of third-party libraries 
Design + Code Helps create an app with Swift and React Assistive video lessons 
Cta 2 ios apple

Tips for Building a Successful iOS App

While coding and everything can help you develop the app, users must remain at the center during the overall development process. So, here are some tips that will help ensure the app you are developing meets the user’s expectations and requirements. 

1. Keep It Simple and User-Friendly

While we don’t suggest you to compromise with features in your app, one thing that you must ensure is to keep the app simple and user-friendly. Don’t complicate things by overlapping the components. Instead, keep it more spacious and easy for the target audience. 

2. Focus on User Experience 

Make sure the end user enjoys using the app. For the same, perform testing multiple times so there are no bugs left in the application, which can spoil the user experience. Moreover, every feature and functionality should be running seamlessly in the app. 

3. Stay Up-To-Date with The Latest Technology 

In the competitive landscape, the best method to achieve competitive advantages is syncing steps with everchanging trends. Make sure you are providing the latest features and updates in your app so your target audience doesn’t have to look for a substitute. 

4. Market the App Effectively 

As we learned in the previous section, telling your audience about your app is crucial to bring them in the fence. Market the app efficiently via different mediums. Highlight your app’s features and functionalities and how it benefits the target audience.

How Can Emizentech Help You? 

Being a leading app development company, Emizentech has achieved several milestone in IT landscape. We carry an experience of more than a decade in this niche with a team of more than 200 innovative and experienced developers. In this journey, we have delivered ample number of successful iOS apps to our client, helping them take a digital turn. Moreover, our experience in the industry has allowed us to confront various challenges that comes in path and thus we know the mitigations as well. We have explored the areas where one can save the cost without compromising with the features and functionalities of the app

Moreover, at Emizentech, you get everything under one roof. So, be it iOS, android, eCommerce, mobile app, website or any tech stack, you need not to look any further.


Apple App Store is the second biggest app market after Google Play Store. With a huge market share in the smartphone market, iOS devices are ruling the gadget market in terms of preferences. Developing the apps and software for these devices has emerged as one of the best digital business ideas, bringing fortune to the one who comes up with innovative ideas and serves them to the users. However, developing a successful app is not that easy as many things are needed to consider. So, ensuring certain things during the project lifecycle helps bring the best outcomes. 

Answers to Common Questions About Building iOS Apps

What is the cost of building an iOS app?

Developing an iOS app ranges anywhere between $25000-$100,000 depending on different factors like features of the app, location of the development team, and complexity of the project.

How long does it take to build an iOS app?

Developing an iOS app generally takes an average of 6-8 months.

Can I build an iOS app without coding experience?

While different platforms like Appy Pie, AppMakr, and Andromo allows building iOS without coding knowledge, one can opt for hiring development team to build the app

Why choose Swift programming language for iOS app development?

Swift is a good choice for iOS app development as one can fix errors while writing codes which is not much possible with Objective-C.

How do I monetize my iOS app?

You can monetize your iOS app with different monetization models like subscription, sponsorship, in-app purchase, freemium, and much more.

What are some common mistakes to avoid in iOS app development?

Following are some common mistakes to avoid in iOS app development-
1. Lack of proper research
2. Unnecessary features
3. Not entertaining feedback
4. Neglecting the marketing 
5. Not providing regular updates

What’s the best way to develop iOS app, step by step

1. Define your app’s purpose and target audience.
2. Conduct market research to identify existing apps and potential competitors.
3. Plan and design the user interface and user experience (UI/UX) of your app.
4. Choose a development platform and programming language (such as Swift or Objective-C).
5. Develop the app’s functionality using appropriate frameworks and libraries.
6. Test your app for bugs, usability, and performance.
7. Refine your app based on feedback and testing results.
8. Submit your app to the App Store for review.
9. Launch your app and promote it through marketing and advertising strategies once approved.
10. Continuously update and improve your app based on user feedback and changing market needs.

Avatar photo

EmizenTech's Mobile App Development team is led by Naren Bhati, who designs and develops technically innovative solutions for our global clientele. He has the technical expertise to steer our app development team on the right path.