Top Swift iOS App Development Company

"Creating great apps, Swiftly."

Zealous System is a leading provider of Swift app development services, helping businesses of all sizes build high-quality, user-friendly, and feature-rich iOS apps. Our experienced Swift app developers have extensive knowledge of the latest Swift versions, frameworks, and tools, and we use this expertise to create custom iOS apps that are optimized for performance, scalability, and security. We also ensure that the app is compliant with Apple’s App Store guidelines, and help you with the submission process.

Zealous’ Swift app development services cover a wide range of industries, including healthcare, eCommerce, finance, and more. We develop native iOS apps for iPhones, iPads, and Apple Watch, leveraging the latest features and functionalities of the iOS platform. We also provide ongoing support and maintenance services to ensure that the app remains up-to-date, secure, and optimized for performance. With our end-to-end iOS app development services, we help businesses transform their app ideas into reality and reach their target audience effectively.

“Our numbers speak for themselves.”


Diverse Domains


iOS Apps Developed


Swift App Developers


On Delivery Time

Our Swift App Development Services

“Our expert fingers take no time in crafting top-notch web apps!”

Swift iOS App Development

  • Developing native iOS apps using the Swift programming language
  • Creating custom apps from scratch or improve existing ones
  • Optimizing app performance and user experience

Swift macOS Development

  • Building high-performance macOS apps using Swift
  • Leveraging latest macOS features and frameworks
  • Delivering the best experience to users
Swift WatchOS Development

Swift WatchOS Development

  • Creating innovative watchOS apps using Swift
  • Taking advantage of unique capabilities of Apple Watch
  • Designing apps for optimal performance and user experience on a small screen

Swift iPadOS Development

  • Building intuitive and engaging iPadOS apps using Swift
  • Optimizing apps for larger screens and iPad features
  • Enhancing the user experience with split-screen, multitasking, and drag and drop

Swift App Maintenance and Support

  • Providing ongoing maintenance and support for Swift-based apps
  • Performing regular updates and bug fixes
  • Ensuring compatibility with the latest iOS, macOS, watchOS, and iPadOS releases

Swift App Migration

  • Migrating existing apps to Swift programming language
  • Converting Objective-C code to Swift
  • Updating outdated Swift code and ensuring compatibility with the latest Apple operating systems.
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Process We Follow As A Custom Swift Application Development Company

“We don’t dive into unnecessary complexities.”


Scope Analysis Process

  • Requirement Gathering
  • Detailed Scope Documentation
  • Wireframes
  • Technical Feasibility

Sprint Planning & Execution

  • Sprint Planning
  • Daily Standup Meeting
  • Designing & Development
  • Testing & Stage/Dev Deployment

UAT & Release

  • UAT Feedback & Bug Resolution
  • Deliver Well-crafted software
  • Deploy All Assets and Code


  • Knowledge Transfer to Client Team
  • Contract Based Support
  • Release Notes/User Manuals (If applicable)


We are here to serve you with top-notch custom software product development services to get your business going.

Why Zealous System As A Swift Development Company?

“We don’t boast but our results say so!”

Domain Experience

You can also opt for outsourcing swift developers who cater in the specific industry/domain to ensure effective problem-solving and decision-making.

Functional Experts

Zealous has individuals with specialized knowledge in specific areas such as marketing, finance, or human resources who can bring value and expertise to the project.

Truly Agile

Adopting agile methodologies allows for flexibility, adaptation, and continuous improvement throughout your project’s lifecycle.

Latest Technologies and High Standards

Zealous incorporates the latest technologies and adhering to high standards ensure that the project is innovative, efficient, and effective.

Integrity & Transparency

We uphold ethical principles and are transparent in all communications and actions which builds trust and strengthens relationships between team members and stakeholders.

Extensive QA Testing

Rigorous testing throughout the development process to ensure that the project is error-free, functional, and meets the expected standards.

Real-time Communication

Effective communication, whether in-person or virtually, takes place to ensure collaboration, problem-solving, and timely decision-making.

Goal-Oriented Workflow

We establish clear goals, objectives, and timelines for each phase of the project which helps in ensuring that the team stays on track and delivers results on time and within budget.

Our Portfolio

"We are very proud of our diverse portfolio and the projects that our experts have created!"

Instant school
Instant School App

The Instant School App is a Mobile Platform that allows Schools to enrich relationship with their students’ parents in a few easy steps.

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K3 logistics
K3 Logistics

K3 Logistics is an Order Tracking app which provides a logistical tracking and monitoring system for a logistics company, where drivers and suppliers can track the progress of their orders.

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Digital wallet app
Digital Wallet App

Developed for one of our client in Middle East, digital wallet app is a new and convenient way to transfer money domestically as well as internationally, pay at authorized shops, and pay basic bills.

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Sonic tonic app
Sonic Tonic App

Sonic Tonic is an e-Health App that uses medically accepted Receptive Sound Therapy for making effective & fast interventions.

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AR spots finder
Ar Sports Finder

AR Spots Finder is a Mobile App that allows Visitors and Shoppers to easily locate a Brand, Product, Shop or Promotion in a Mall or at a Venue by utilizing Augmented Reality & Beacon Technology.

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Frequently Asked Questions

“We built strategies before development that work just for you.”

How does Swift differ from other programming languages?

Swift is a relatively new programming language that was first introduced by Apple in 2014. It was designed to address some of the limitations of Objective-C, the previous primary programming language for iOS and macOS development. Unlike Objective-C, Swift is a strongly-typed language, which means that developers must specify the data type of each variable when they declare it. Swift is also easier to read and write, with more concise syntax and less boilerplate code.

How can Zealous System help with Swift development?

Zealous System is a software solution provider that offers Swift app development services. Our team of experienced Swift developers can help you build custom iOS and macOS applications, as well as backend systems that use Swift. We also provide consultation and support for Swift projects, helping you ensure that your code is well-designed, efficient, and maintainable. Whether you need help with a new project or an existing one, Zealous System can provide the expertise you need to succeed.

What is the cost of the project as a Swift iOS app development company?

The cost of a project is influenced by several factors, such as its size, the number of resources required, the technology stack used, the complexity of the product, and the development process. To obtain further information on this matter, please contact our business development team at

How do you take care of intellectual property rights?

At the outset of every project, we establish a Non-Disclosure Agreement with each client to uphold strict confidentiality standards. Our commitment to safeguarding our clients’ information and intellectual property is of the utmost importance to us, and we take every precaution to ensure that it remains secure and private.

How does Zealous Systems prioritize app security in Swift iOS app development?

Zealous Systems prioritizes app security in Swift iOS development through secure coding practices, data encryption, authentication, secure backend integration, and regular security updates. Our goal is to protect user data and maintain the highest level of security in the apps we develop.

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