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Top Swift App Development Company

"Creating great apps, Swiftly."

As a leading Swift app development company, Zealous System caters to businesses of all sizes, crafting high-quality, user-friendly, and feature-rich iOS apps. Our seasoned Swift app developers boast extensive knowledge of the latest Swift versions, frameworks, and tools. Leveraging this expertise, we deliver tailored iOS applications optimized for performance, scalability, and robust security, ensuring full compliance with Apple’s App Store guidelines and providing comprehensive support throughout the submission process.

Zealous System’s Swift development services span various industries, including healthcare, eCommerce, finance, and more. Specializing in native iOS app development for iPhones, iPads, and Apple Watch, we harness the latest iOS platform features and functionalities. Our commitment extends beyond development, encompassing ongoing support and maintenance, guaranteeing that your app remains up-to-date, secure, and optimized for peak performance.

With Zealous’ end-to-end Swift app development services, businesses can realize their app ideas, effectively reaching their target audience. Additionally, our swift development company provides the flexibility to hire Swift developers tailored to your specific project requirements and business objectives.

“Our numbers speak for themselves.”


Diverse Domains


iOS Apps Developed


Swift App Developers


On Time Delivery

Our Swift App Development Services

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

Swift iOS App Development

  • With the power of Swift, Apple’s modern and intuitive programming language, we create sturdy and high-performing iOS applications.
  • Our skilled Swift developers use iOS frameworks and libraries such as UIKit, CoreData, and Core Animation to build engaging user interfaces and experiences.
  • By utilizing Xcode, along with Interface Builder, XCTest, and CocoaPods, we smoothen the development process and ensure code quality, testing, and dependency management.

Swift macOS Development

  • By using Swift Package Manager (SPM) as a dependency manager, we develop tools for your macOS projects.
  • Our developers use SwiftUI’s intuitive syntax and live previews to rapidly prototype, design, and iterate on your application’s user interface.
  • We take advantage of SwiftUI’s cross-platform capabilities to create applications that adapt to multiple Apple platforms, including macOS, iOS, watchOS, and tvOS.
Swift WatchOS Development

Swift WatchOS Development

  • By using the WatchKit framework, we integrate it with Apple Watch’s unique hardware features, including complications, digital crown, haptic feedback, and more.
  • Our Swift developers enhance user experience with tech such as Core Bluetooth and Core Location to enable smooth communication with external devices and provide location-based functionalities on Apple Watch.
  • We use Xcode which provides a suite of tools for Swift WatchOS development, including code editing, debugging, and testing functionalities.

Swift iPadOS Development

  • Our developers take advantage of iPadOS platform’s advanced capabilities, including multitasking, drag and drop, and split view, to create immersive user experiences.
  • We integrate your iPadOS applications with Apple’s frameworks, such as SwiftUI and Combine, to leverage declarative syntax, reactive programming, and a unified UI development approach, hassle-free.
  • With the extensive range of iPadOS-specific APIs, including UIKit, Core Data, and Core Animation, we create visually stunning and responsive interfaces, manage data persistence, and implement advanced animations and transitions.

Swift App Maintenance and Support

  • Our team of experienced Swift developers utilizes advanced debugging tools, such as Xcode, to identify and resolve coding errors, ensuring your app runs smoothly and efficiently.
  • With profiling tools like Instruments, we analyze your Swift app’s performance bottlenecks, memory usage, and CPU utilization with code refactoring and optimization techniques.
  • We actively monitor Apple’s developer documentation and use Swift migration tools to make necessary adaptations and maintain compatibility across different iOS versions.

Swift App Migration

  • Our expert team uses tools like Xcode and Swift Migrator to ensure a smooth and efficient migration process of your existing iOS applications to Swift.
  • Language Compatibility: With Swift App Migration, we enable your app to have the latest features and performance enhancements offered by Swift, while ensuring compatibility with your existing Objective-C codebase.
  • Our Swift App Migration services go beyond mere code translation by analyzing your app’s performance bottlenecks, leveraging Swift’s advanced memory management, concurrency, and optimization techniques.
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Process We Follow As A Swift App 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)

Trusted Swift App Development Company for Industry Owners

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

Why Zealous System As A Swift App Development Company?

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

Proficiency in Swift

With expertise in Swift development services, Zealous System boasts a team of proficient developers well-versed in Swift, harnessing its powerful features to create robust and efficient applications.

Adherence to Best Practices

Dedicated to adhering to industry standards and employing the best coding practices, Zealous System, as a leading Swift app development company, ensures that all Swift development projects are executed with utmost precision and quality.

Expertise in iOS Ecosystem

The company’s deep understanding of the iOS ecosystem enables them to leverage the full potential of Swift, delivering seamless and optimized solutions for Apple devices.

Performance Optimization

Specializing in Swift app development services, Zealous System prioritizes performance optimization in Swift development, implementing techniques that enhance app speed, responsiveness, and overall user experience.

Agile Development Approach

By embracing an agile development methodology, Zealous System, as a swift app development company, advocates for iterative progress, fostering regular feedback loops, and facilitating swift adaptations to evolving project requirements.

Scalable Solutions

Zealous System’s Swift app development services are designed with scalability in mind, allowing applications to seamlessly accommodate growing user bases and evolving business needs.

Testing and Quality Assurance

As a prominent swift app development company, Zealous System implement stringent testing methodologies and robust quality assurance processes. This approach enables us to meticulously identify and resolve issues, guaranteeing the delivery of bug-free and dependable Swift applications.

Continuous Support and Updates

Zealous System provides ongoing maintenance and support services, including Swift version updates, to keep your app current, secure, and compatible with the latest iOS releases.

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 Spots 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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Our Podcasts

Clutch Goodfirms

Client Testimonials

I have used Zealous for several of my projects, I have found the team to be very professional yet personable. When I work with Zealous, I know I am getting the best developers who understand my requirements before they start.

Andrew Arlington

Andrew Arlington

Sales Director at Digital Dilemma

I was retained by a client as a Software and Cloud Architect to support internal and customer-facing products. The client had existing mobile apps of poor quality built by another provider.

John Bentley

john bentley, II

CTO at 10XTS

From day-1 Pranjal and his team have been very good at delivering quality work on time to budget. They are dynamic, if resources need to be shuffled around depending on what work needs to be done.

Graham Bradford

Graham Bradford

Senior Product Manager at Ecentric Payment Systems Driving

Frequently Asked Questions

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

What is Zealous System's expertise in Swift app development?

Zealous System is a seasoned Swift app development company with a strong track record of creating innovative and high-quality iOS applications. Our team of skilled Swift developers possesses extensive knowledge of the language and its latest updates.

What types of Swift applications does Zealous System develop?

We specialize in developing a wide range of Swift applications, including native iOS apps for iPhones, iPads, and Apple Watch. We also excel in cross-platform Swift app development, making your app accessible across multiple Apple devices.

How does Zealous System ensure app security and quality?

Zealous System prioritizes app security and quality through rigorous testing and quality assurance procedures. Our experienced team employs industry-standard best practices to identify and rectify issues, ensuring your app is bug-free and reliable.

Can Zealous System assist with App Store submission and compliance?

Yes, we provide support throughout the App Store submission process, ensuring your app complies with Apple’s guidelines. We help prepare your app for a successful launch on the App Store.

What industries does Zealous System serve with Swift app development?

Our expertise extends to various industries, including healthcare, eCommerce, finance, and more. We tailor our Swift app development solutions to meet the specific needs of your industry.

Can I hire dedicated Swift developers from Zealous System?

Yes, we provide the flexibility to hire dedicated Swift developers who can work exclusively on your project, ensuring a personalized and focused approach to your app’s development.

What is the typical project timeline for Swift app development with Zealous System?

Project timelines vary depending on the complexity and scope of the project. We work closely with our clients to establish realistic timelines and ensure timely project delivery.

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