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iOS App Development: 10 Essential Tools for Every Developer

iOS App Development: 10 Essential Tools for Every Developer
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Welcome to the world of iOS app development! In this article from Designveloper, we will describe the tools that are absolutely vital for every iOS app developer. These are some of the key tools that developers use to develop awesome and interactive mobile applications. Starting from the IDEs to the testing tools, all of them are very vital in the development life cycle.

Read on to know more about these tools and how they work, as well as tips and tricks to conquer the iOS app development process. In this article, we’ve tried to provide basics that any developer should know in order to be on the right track in this dynamically developing industry. So, let’s start this journey, shall we?

Understanding iOS App Development

It is now time to step into the world of iOS application development. This field is a fundamental part of the mobile applications market that reached $228.98 billion in 2023. While moving through the year 2024, there is a need for one to be conversant with the current trends and innovations in this field.

The use of Artificial Intelligence (AI) and Machine Learning (ML) is one of the primary focuses in the development of an iOS application. These technologies are continuously advancing to enhance the development of more sophisticated features like the personal assistant and image recognition. For instance, the Core ML framework by Apple helps developers include machine learning in iOS apps with ease.

Understanding iOS App Development

One more important trend is the increasing number of apps created with the help of Augmented Reality (AR) and Virtual Reality (VR). These technologies are effective in providing users with a realistic and engaging experience when using applications. For instance, the ARKit 3 makes it possible for developers to use both front and back cameras, which helps in placing virtual objects in a more natural way.

Another important aspect which cannot be overlooked in iOS app development is security. As users become more sensitive to the data they input in various applications, developers are working on how to develop applications that can secure user data. This includes providing a high level of security and following a number of security policies and regulation as followed by Apple.

Explanation of what iOS app development entails

Now, let us focus on the details of developing applications for iOS. This process entails developing applications compatible with Apple’s portable gadgets such as the iPhone, iPad, and iPod Touch. The software can be coded in Swift or Objective-C, two modern programming languages that are developed by Apple Inc.

The first stage of the iOS application development is conceptualization of the application. It includes designing the layout and features of an app and organizing its workflow. This stage is usually carried out using tools like Sketch and Adobe XD.

Subsequently, the developers code the applications for the app. They code and debug using Xcode which is an IDE developed by Apple. Xcode contains a set of features that help to make the development process smooth and efficient, thus allowing the developers to build quality apps.

As with any software application, testing is a vital component in the development of an iOS app. There is a variety of testing tools, such as XCTest and Appium, that help developers to test their apps and check if everything works fine. These tools help the developers in managing the different problems that are bound to appear before the application is out in the market.

Last but not the least; after the app is developed and checked for its performance, the actual process of deployment starts. Apple’s App Store works on the basis that developers who want their apps to be included in the store send them to Apple, which then reviews them before making them available to the users. This process helps to make sure that all the apps that are available for download in the App Store are up to the highest standards of quality and security set by Apple.

Importance of iOS app development in today’s digital world

Indeed, it is impossible to overemphasize the significance of iOS app development in the contemporary world. As of now, there are more than 1 billion active iPhone users around the globe, and this is why iOS mobile app development is a perfect way to target loyal audiences and make money.

Another factor that shapes the necessity of iOS app development is the audience it covers. New statistics reveal that over 50% of mobile device profits are generated by iOS.  Apple devotees spent nearly 2x as much on apps as Android users last year. This loyalty and willingness to pay for premium experiences make iOS app development to be among the most important goals to achieve.

The other consideration is more active usage of applications installed on iOS devices. Applications developed for Apple gadgets are found to have better interaction levels compared to those developed for other operating systems. The consistency makes the navigation of all iPhones look and work in a similar manner. More than half of the owners earn more than a hundred thousand dollars in their households annually. They also index higher for education levels, shop more often, and spend more per shopping trip.

Furthermore, iOS app development offers chances to cover the entire Apple space. In terms of offering premium iOS applications by well-known brands, Apple does everything possible to draw attention to them. Since their App Store is very user-friendly, it is very easy for the users to get recommendations based on downloads, ratings, and personal preferences.

10 Essential Tools for Every iOS App Developer

Let’s delve into the 10 most essential tools in iOS app development. These tools are the backbone of the development process, enhancing productivity, and ensuring the creation of high-quality apps1.

Xcode: The primary integrated development environment (IDE) for iOS app development

To begin with, Xcode is the main IDE for creating iOS applications. It is an integrated development environment for developing applications that can run on any Apple platform. Mac App Store or directly from the Developer site; it is available for download.

Xcode: The primary integrated development environment (IDE) for iOS app development

Xcode offers an integrated environment and has been mainly designed to work with Apple Software. It consists of all the features that one would expect out of a contemporary IDE, including a source code editor, debugger, and version control. It supports several languages such as Swift, Objective-C, C, C++ through its LLVM compiler.

Another important aspect of Xcode is the file management system that is incorporated in this development environment. One of the features of the Asset Catalog in Xcode is that all image files are grouped according to the resolution. It even chooses the best image so that the last distribution will be a compact file size.

Testing is very important in the development of iOS applications, and Xcode comes with testing frameworks. There are ways to build up source files and package up an application to be executed on a device or simulator. Xcode builds the entire project from scratch if required or it only builds the items that have been modified.

Last but not the least; Xcode has a prominent role to play in the deployment of the app. Users download applications from the App Store, which is managed by Apple, and these applications are created by developers who submit them to the company for consideration. This way every application that is to be developed and made available on the App Store has to go through Apple’s stringent quality and security checks.

Swift Playgrounds: A tool for learning and experimenting with Swift

In this section, we will get to know Swift Playgrounds, an innovative application for learning and practicing Swift. This tool is intended to help people develop interest in the Swift language, particularly the beginners, by making the whole learning process fun and engaging.

Swift Playgrounds: A tool for learning and experimenting with Swift

Swift Playgrounds is an iPad and Mac app from Apple designed to teach students how to code with Swift and build apps. It introduces coding concepts as a set of games or something like that that needs to be solved. This one is unique in that it lets you type in actual Swift code and includes a tutorial to help teach you how to code.

Another interesting feature of Swift Playgrounds is that with such a line of code, something amazing happens. To get started, there will be small programs called “playgrounds” to get familiar with the language. Further down the line, you begin coding with SwiftUI, a contemporary, highly effective, and flexible tool for creating beautiful apps.

It also provides numerous lessons which means that you can come back and try something new in the challenges section. Some of them are fun and involve some coding to get strange effects, while others are rather elaborate puzzles which take all of your coding abilities to solve.

AppCode: An alternative IDE for iOS app development

Now let’s focus our attention to AppCode, which is the second IDE for iOS application development. The AppCode has been developed by JetBrains and it supports Swift, Objective-C/C++, C/C++, and many others languages using plugins.

AppCode: An alternative IDE for iOS app development

AppCode is an application that aims at enhancing productivity and the quality of codes. It allows for easy code browsing, accurate code completion, instant code suggestions with corrective actions, and outstanding code restructuring. These features allow developers to write the code neatly and avoid common mistakes, thus improving the quality of the app.

Another feature that is worth mentioning is its strong integration with another Apple’s IDE – Xcode. It employs the same project template and can synchronize all changes with Xcode. This means you can edit one file in both IDEs at once and switch between them – AppCode will check whether the changes that have been made in one IDE are reflected in the other.

AppCode also supports all Xcode templates, so you can create new projects in the same manner as it is done in Xcode. This makes it easy to switch from Xcode to AppCode for developers.

TestFlight: An Apple tool for beta testing iOS apps

Let’s now consider TestFlight, an Apple tool aimed at the beta testing of iOS applications. It is an effective app that helps developers to share the beta version of the application with the testers.

TestFlight: An Apple tool for beta testing iOS apps

TestFlight is a great tool to invite users to test your apps and to gather important information before putting your applications on the App Store. It is possible to invite up to 10 000 testers using their email or simply sharing the link.

TestFlight works with apps targeting iOS, iPadOS, macOS, tvOS, Vision, watchOS, and iMessage. It makes sure that the testers always test the current available version of build. As many as 100 applications can be tested at once, in-house or remote, and several builds can be tested concurrently.

It also has good testing tools to enhance testing activities. It also allows developers to build their source files and package the app to work on a device or simulator. TestFlight does either a full build that rebuilds from scratch or an incremental build that rebuilds only the modified items.

CocoaPods: A dependency manager for Swift and Objective-C projects

CocoaPods is a widely-used tool to manage dependencies in iOS app development using Swift and Objective-C. It is being utilized by more than 3 million applications and has more than 95 thousand libraries. It is the same way as pip for Python and npm for NodeJS.

CocoaPods: A dependency manager for Swift and Objective-C projects

CocoaPods helps in installation, updating, and management of libraries that are required for an application. It identifies the libraries and frameworks that are used in your applications and offers a standard format for managing them. It also helps in tracking large projects involving many third-party libraries.

The libraries and frameworks necessary for your projects are declared in one text file called a Podfile. CocoaPods will then determine the interdependencies between libraries, download the required source code, and integrate it in an Xcode workspace for building your project.

Another important feature of CocoaPods is the file management system. It gives a specific structure for each dependency so that the directory of each is separate from the other. This is more effective in organization and management of documents especially in instances where there are many versions.

CodeRunner: A multi-language IDE that supports Swift

Now let’s discuss CodeRunner, a multi-language IDE which includes support for Swift and would be a great tool for iOS application development. CodeRunner also has unique and enhanced code compilation features that make it an excellent choice for iOS app developers with a highly functional component.

CodeRunner: A multi-language IDE that supports Swift

One of the greatest advantages of CodeRunner is that it is compatible with a big number of programming languages, including Swift. It offers a neat and uncluttered environment which makes coding more enjoyable and easier. It also contains a debugger that enables the developers to debug their work and find the errors without much effort.

Moreover, the feature of code completion is one of the most significant advantages of CodeRunner. This feature allows users to type less by suggesting completions as the developer writes the code. It also contains syntax highlighting, which makes it easier to comprehend what has been written in the code.

It also has a terminal integrated into the IDE that enables the developers to run their code from the IDE. This feature is very helpful for testing and debugging purposes since one can monitor the output of a program as it is being developed.

GitHub: A platform for version control and collaboration

Now it is time to discuss GitHub, which is a system of version control and the source of collaboration for iOS applications. GitHub is a service that provides hosting for version control based on Git. It is widely employed by millions of developers and has more than 100 million repositories.

GitHub: A platform for version control and collaboration

GitHub is the platform that allows multiple developers to contribute to projects. It enables developers to track modifications, roll back to prior states, and contribute to the creation of multiple features in parallel. This makes it a very useful application in the organization of large scale iOS app development.

Among all the features GitHub offers, GitHub Actions is one of the most important ones. This feature enables developers to prescribe, customize and run software development processes within repositories. For example, developers can apply GitHub Actions to build an iOS app without engaging in the process manually.

GitHub also provides a rich list of integrations and useful actions in its marketplace. This enables the developers to be able to expand the functionality of their projects through actions developed by other people in the community. For instance, developers can include testing tools, deploy their app, or set up their release process.

Jazzy: A documentation tool for Objective-C and Swift

Now let us introduce you to Jazzy – a documentation tool that is necessary when writing iOS applications in Objective-C and Swift. Jazzy is a tool that is used to create documentation for swift or objective-C, which runs through the command line. It is integrated into over 3 million apps and boasts a library of over 95 thousand.

Jazzy: A documentation tool for Objective-C and Swift

It is interesting to note that Jazzy does not analyze your source files. Instead, it integrates with Clang and SourceKit in order to leverage the Abstract Syntax Tree representation of your code and its comments for more precise analysis. The output is directly similar to the appearance of Apple’s official documentation style, after WWDC 2014.

Jazzy can also create documentation from compiled Swift modules and use symbol graph rather than source code. This feature enables the developers to be able to write detailed documentations without necessarily having to have the source code.

Another important feature of Jazzy is that it can be used with Xcode and Swift Package Manager projects. This means you can use Jazzy no matter what setup you’re using for your project. In order to install Jazzy, you can simply type sudo gem install jazzy on the terminal.

InVision: A prototyping tool for app design

Next item is InVision, a tool that is essential for prototyping in the process of iOS app development. It is a digital product design platform that enables creating the best customer experience in the world. It offers design solutions and learning resources to help teams succeed through every phase of their product design journey.

InVision: A prototyping tool for app design

As a result, InVision possesses a number of features that will prove invaluable to iOS app developers. It enables designers to design fully functional and animated mockups without any coding. These prototypes can be further distributed and worked on with other members and stakeholders of the team.

Another major advantage of InVision is that it can capture feedback across the entire product design process in real time. InVision has also introduced Freehand for iPhone and iPad to help users view existing Freehands and create new ones from within the app. Freehand makes it possible for you to draw, design or even brainstorm with your team.

Another feature of InVision is user testing, which is especially important when it comes to the usability of the interface. The live mode of the user test is beneficial for you and your testing group since it lets you and your team move through your prototype in the same way you will do it with the functional iOS app.

Firebase: A comprehensive mobile app development platform

The final item on our list is Firebase, a versatile mobile application development platform that has a significant impact on iOS application development. Firebase, developed by Google, is a popular tool that is used by millions of companies worldwide. It offers documentation for both, the detailed documentation and cross-platform app development SDKs that enable developers to create and deploy applications for iOS, Android, the Web, Flutter, Unity, and C++.

Firebase: A comprehensive mobile app development platform

Firebase is a platform that provides developers with various tools to support them in launching their applications to the market and ensuring their protection. All of these tools can grow to a global level where the developers can concentrate on the important aspects. Firebase is a platform that offers developers tools to integrate into their apps, built on Google Cloud technologies to help them build apps faster.

Another aspect that is worthy of attention is the opportunity to integrate AI into applications with the help of Firebase. Using Firebase, developers can add sophisticated capabilities including personal assistants and image recognition into the applications.

Another great advantage of Firebase is that it has great testing capabilities. It is also possible to build an app bundle with source files and launch an app in a device or simulator. Firebase is capable of either rebuilding everything from scratch or building only the things that have been modified.

FAQs: Designveloper’s iOS App Development Services

At Designveloper, we know iOS application development is a broad area with many opportunities. Having been the premier web & software development company in Vietnam for many years, we’ve had the opportunity to develop many iOS applications and learn from all of them.

In this section, “FAQs: This is why in our “About Designveloper’s iOS App Development Services”, we will try to explain several questions that customers often ask. For it, we will discuss more about our process, the tools that we apply, and how we guarantee the end product as the best and easiest to use apps.

We would also like to note that our team at Designveloper always follows the modern trends and innovations in iOS application development. We utilize this information in developing customized approaches in addressing the needs of various clients. When it comes to creating iOS apps, we offer a full range of services from creating an understandable interface to implementing the application’s functionality.

The next principle is related to transparency, which we think is crucial to effective partnerships. That is why today we are glad to present you this detailed overview of our iOS app development services. For anyone who is interested in our expertise as a design and development company or any other developer who wants to learn more about our work, this section will be informative.

What is the iOS App Development Process at Designveloper? 

For any iOS application development, Designveloper has a well-structured and effective process for it. Our strategies are aimed at producing high quality and effective applications that will suit the needs of our clients. Here’s how we do it:

Requirement Gathering and Analysis

The first step involves consultation with the client in person, through emails or filling of questionnaires where he/she outlines his/her needs and goals. These requirements are then reviewed and grouped by the analysis team according to features, feasibility, and priority.

UI/UX Design

What is the iOS App Development Process at Designveloper? 

Even in the design process, we first start with the wireframe, which is the skeletal structure of the user interface and experience. We then create the complex appearance of the interface, the color scheme, icons, and fonts. The prototype of the design is created for the application, which will help to test the functionality of the application after its completion.

Programming and Development

  1. Front-End Programming: Our front end in mobile programming is designed to make the application easily navigational, interactive and graphically appealing. Technologies that are employed include programming languages which are Swift and Objective C for iOS, Kotlin or Java for Android, cross-platform tools like Flutter and React Native.
  1. Back-End Programming: The back-end is responsible for data processing, business logic, storage, and managing the application’s state. We usually speak languages such as Node. web languages such as javascript, python, ruby, php or java; server services; databases such as MySQL, MongoDB, Firebase etc; and APIs.


We perform unit testing to confirm that every component of the application works as it is supposed to work. Integration testing is important to ensure that the components that have been developed are able to function well in unison. User Acceptance Testing (UAT) entails a set of users using the application in order to offer a final verdict before the application is released officially.

Deployment and Release

We perform some operations to make the application go live on the App Store and Google Play. Subsequently, evaluations are made on aspects such as the rate of usage, and customers’ feedback to enhance the application.

Maintenance and Updates

We gather feedback from users, implement changes, and enhance the application in response to such feedbacks and the incorporation of new technologies.

During the iOS App Development Process, What Technology and Tools Were Used?

In the course of developing an iOS app at Designveloper, we employ several technologies and tools to guarantee perfect and engaging apps. Here’s a closer look at what we use:Here’s a closer look at what we use:

Programming Languages

We primarily use Swift, which is the language developed by Apple for iOS. It is intended to be more secure, performant, and less complex than Objective-C, which is Apple’s previous language. However, there are still some cases where it is necessary to use Objective-C, for example, in large-scale projects or projects where the use of Swift is impossible due to the fact that they were started before the creation of this language. We also use JavaScript for React Native which is a mobile app development framework developed by Facebook and Dart for Flutter a UI toolkit to build mobile, web, and desktop applications from the single codebase developed by Google.

Development Tools

Xcode is Apple’s Integrated Development Environment (IDE) and is used for building applications for macOS, iOS, watchOS and tvOS. It has a code editor, a compiler, a debugger, and an emulator that is basic yet helpful in developing programs. Another tool is Visual Studio Code, an open-source, lightweight source code editor that supports macOS, Linux, and Windows and can be customized for iOS app development with the help of other tools and extensions.

Libraries and Frameworks

UIKit is a framework that Apple offers to build the interface of an iOS application and SwiftUI is a newer framework from Apple that allows you to build interfaces with Swift and a declarative approach. To manage the storage of data in the application we use Core Data. For audio and video playing and processing, we utilize the AVFoundation framework while for developing effects and animations for the user interface, we employ Core Animation framework. We also utilize some of the most commonly adopted frameworks for iOS application development such as React Native and Flutter.

Library Management Tools

CocoaPods is the most commonly used library management tool for iOS development, which can help to integrate and manage external libraries. Carthage is another tool we use for managing libraries that is simpler and can be integrated in a more free-form manner.

Automation and Deployment Tools

Another tool we employ is Fastlane, which is a collection of tools designed to streamline the process of developing and delivering iOS applications, including building, testing, and releasing. Jenkins is a widely used tool for CI/CD that can help automate the build and release of the application. TestFlight is an Apple service used to release the beta versions of the app to the testers before uploading to the App Store. Firebase App Distribution is for distributing the beta versions of the app to the testers.

To Ensure iOS Product Quality and Meet User Requirements, What Testing Methods has Designveloper Applied?

To Ensure iOS Product Quality and Meet User Requirements, What Testing Methods has Designveloper Applied?

To improve the quality of the iOS app development projects in Designveloper and to satisfy users’ demand, we use a number of testing approaches. Here’s a closer look at our testing process:Here’s a closer look at our testing process:

Unit Testing

This is one of the most important phases of the iOS app development where we test small components of the source code to ensure that they are working as intended. We use XCTest which is an official unit testing framework for iOS provided by Apple and comes with Xcode which we use to write our tests.

Integration Testing

This process involves checking how individual units of the application work when combined to determine the functionality of the final product. For integration testing, we employ XCTest to write tests that would ensure that all the various modules in the application are integrated correctly. For the more complex interactions between the application and its UI components, we utilize Appium, an open-source automation testing tool.

Manual Testing

This is one of the phases in developing software. While implementing automated testing has its merits, manual testing has to be performed to identify issues that automated testing can overlook, for instance, those that have to do with usability and interface. The core of this manual testing process is to guarantee that the application can be easily navigated by the end user and all options are fully operational.

User Acceptance Testing (UAT)

This is the last phase in the software testing process where the customers or their representatives can testify that the system is ready for release. We use TestFlight to distribute the iOS application to end users in order to test it on real devices. Additionally, we utilize JIRA/Trello to track bugs and other tasks involved in the UAT process and any issues that are identified during the process. We also use Google Forms/Sheet in order to gather feedback from end users regarding their experience and any challenges they faced.

Some Of The Challenges Encountered During Ios App Development And The Solutions That Designveloper Applied?

In our iOS app development at Designveloper, we have faced some issues that are as follows: Some of the solutions that we have implemented during the development process are as follows: Here’s a closer look:

Device and iOS Version Diversity

Apple currently has many products that are of different sizes and resolutions and also different in the hardware used. A major challenge is to ensure that the app is compatible with iPhone, iPad, and different IOS versions. As a solution, it will be necessary to use responsive web design that provides an adaptive interface depending on the size of the screen. To test it on multiple devices and versions of iOS, we use Xcode Simulator and TestFlight; however, in this case, we prefer testing on physical devices whenever possible.

Adherence to Apple’s Design Principles

Apple has guidelines known as Human Interface Guidelines that it follows in the development of its products. To ensure that the app complies with these regulations for it to be accepted on the App Store, the design has to be very deliberate and accurate. We counter this through compliance with the HIG, and citing Apple’s design principles. It not only helps your app become more user-friendly but also enhances the chances of the app getting approved on the App Store.


The safety of the user data and the application is essential in the development process. For this, we use Keychain to store sensitive information and encrypt important data. We also make sure that network communications are secure by encrypting them and also apply strict authentication methods for APIs.

App Store Approval Process

It is also important to note that the approval process of any application on the App Store may take some time and is very rigorous. There are a number of reasons why an app may be rejected, and developers must ensure that all of Apple’s requirements are fulfilled before the app can go live. We also make sure that the app complies with all the rules and regulations set by Apple in readiness for the approval process. We track its feedback from Apple and are prepared to change it if necessary.

Updates and Maintenance

When Apple releases a new iOS version, developers need to make changes to the app to ensure compatibility with the new iOS version, which sometimes would need new code and changes in the app structure. This is solved by frequently releasing new versions of the app to support the new iOS versions as well as modifying the source code in accordance with the changes introduced in the SDK as well as in the third-party libraries.

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