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Top iOS App Development Company

Turning ideas into apps faster than you can say 'Swift'.

At Zealous System, our focus lies in crafting iOS applications that effectively facilitate the attainment of our clients’ business goals. With a solid history of delivering successful iOS applications to a diverse array of industries encompassing healthcare, finance, education, and more, we offer unparalleled iPhone application development services.

Our dedicated team of iOS app developers is deeply committed to ensuring a seamless and hassle-free experience for our clients, commencing from the initial conceptualization to the development phase and eventual launch. Leveraging profound expertise in cutting-edge iOS app development technologies and platforms, including Swift, Objective-C, Xcode, and more, our developers execute each project with utmost precision.

Through the adoption of agile methodologies, we guarantee the delivery of top-notch iOS applications that not only boast user-friendliness and intuitive interfaces but also exhibit exceptional scalability. If you seek a comprehensive and proficient iOS app development journey, we invite you to explore our iOS application development services and hire iOS developers who are renowned for their ability to provide tailored solutions that precisely meet your requirements.

“Our numbers speak for themselves.”


Diverse Domains


iOS Apps Developed


iOS Developers


On Time Delivery

Our iOS Application Development Services

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

iOS App Development Consultation

iOS App Development Consultation

  • Our iOS app development consultation services encompass in-depth analysis of project requirements, technical feasibility assessment, and architectural guidance.
  • We iOS experts use technologies such as Swift, Xcode, Cocoa Touch, and Core Data to create robust and high-performing iOS applications.
  • By providing guidance on best practices for user interface design, app performance optimization, security implementations, we integrate with third-party APIs for seamless functionality.
iPhone App UIUX Designing

iPhone App UI/UX Designing

  • We use intuitive navigation, clear hierarchies, and logical flow to create a seamless user experience and implement features such as menu bars, breadcrumbs, and collapsible sections to enhance usability.
  • By employing visual design principles like color schemes, typography, and iconography, we establish a consistent and visually appealing iPhone app UI.
  • We implement interactive elements such as gestures, animations, and Micro interactions to enhance user engagement and delight in iPhone app UI/UX design with techniques like swipe gestures, parallax scrolling, and animated transitions.
Custom iPhone App Development

Custom iPhone App Development

  • Our expert team of iOS developers utilizes Swift’s strong type inference, safety features, and performance optimizations to develop user-friendly and efficient custom iOS apps.
  • From UI Kit and Core Animation to Core Data and Health Kit, we take advantage of these powerful tools to build feature-rich iPhone apps.
  • We specialize in integrating custom iPhone apps with various Apple services, including iCloud, Siri Kit, Apple Pay, and Apple Maps.

Enterprise iOS Applications

  • Our iOS experts hold expertise in technologies such as Swift programming language, Cocoa Touch framework, and Xcode IDE to deliver secure, high-performance, and featured solutions.
  • Zealous’ Enterprise iOS Application development incorporates secure network communication protocols (SSL/TLS), encryption algorithms (AES-256), and secure storage mechanisms (Keychain Services).
  • We integrate with existing enterprise systems, databases, and APIs, enabling real-time data synchronization, seamless workflow automation, and enterprise resource planning (ERP) integration.
iOS App Testing

iOS App Testing

  • Our tech stack has XCTest, Appium, and Calabash utilized to automate testing processes, allowing for efficient regression testing, UI testing, and integration testing on iOS devices.
  • With the help of latest tech we provide features such as assertion libraries, simulators/emulators, and APIs to interact with the app under test.
  • Zealous’s iOS App Testing Services involves validating the app’s behavior across different iOS versions, devices (iPhone, iPad), and screen sizes, while addressing challenges too.

Multi-platform Deployment

  • Our iOS developers achieve deployment across diverse platforms and environments, including web, mobile, and desktop, using containerization technologies such as Docker and Kubernetes.
  • We enable continuous integration and continuous deployment (CI/CD) pipelines for rapid and efficient software delivery.
  • We ensure compatibility and consistent user experience across different platforms with frameworks like React Native, Xamarin, and Electron, allowing developers to build once and deploy on multiple platforms.
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Process We Follow As A Custom iOS 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)

Preferred iOS App Development Company for Industry Owners

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

Why Zealous System As An iOS App Development Company?

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

Expertise in Swift and Objective-C

As a leading iOS app development company, Zealous System boasts a skilled team of developers proficient in both Swift and Objective-C. This expertise equips them to craft resilient and high-performing iOS applications.

In-depth Knowledge of Xcode

Proficient in the Xcode development environment, Zealous System excels in custom iOS application development, leveraging this expertise to streamline the app development process and seamlessly integrate diverse features and functionalities.

Focus on UI and UX

At Zealous System, we place a high emphasis on developing intuitive and visually striking interfaces, ensuring a seamless user experience, resulting in iOS applications that are not just functional, but also engaging and user-friendly, as part of our comprehensive iOS application development services.

Agile Methodologies

As an adept iOS app development company, Zealous System embraces agile methodologies, enabling a dynamic and iterative development approach. This strategy ensures the prompt delivery of superior-quality iOS applications that precisely align with the evolving demands of our clients.

QA and Testing

Zealous System implements comprehensive quality assurance and testing procedures, including automated and manual testing, to identify and rectify any potential issues, ensuring that the iOS applications are reliable, stable, and bug-free.

Cutting-Edge Technologies

Zealous System, as a leading iOS app development company, stays at the forefront of the industry’s latest trends and advancements. By integrating cutting-edge technologies and features, we ensure the delivery of forward-thinking and competitive applications that precisely align with the dynamic market demands in the realm of iOS app development.

Scalability and Performance

Zealous System prioritizes the development of scalable iOS applications, adept at accommodating growing user demands while ensuring optimal performance. This strategic approach effectively future-proofs the apps, allowing for seamless expansion and upgrades, all within the framework of our comprehensive iOS application development services.

Support and Maintenance

Zealous System provides ongoing support and maintenance services to its clients, offering timely updates, bug fixes, and feature enhancements to ensure the long-term performance, functionality, and relevance of the iOS applications.

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.

View Portfolio


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.

View Portfolio


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.

View Portfolio


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 kind of iOS applications does Zealous System develop?

Zealous System specializes in developing a wide range of iOS applications, including but not limited to e-commerce, healthcare, finance, education, and entertainment applications, tailored to meet diverse business needs.

How can you help me integrate third-party APIs into my iOS app?

Integrating third-party APIs (Application Programming Interfaces) into your iOS app allows you to leverage additional functionality and services. Our skilled iOS developers have experience integrating various APIs, such as social media APIs, payment gateways, mapping services, and more. We follow industry best practices and utilize frameworks like Alamofire or URLSession for API integration.

Do you provide ongoing maintenance and support for iOS apps?

Certainly, we provide continuous upkeep and assistance for iOS applications, which includes resolving issues, improving functionality, and updating features. Our tech stack has XCTest, Appium, and Calabash utilized to automate testing processes, allowing for efficient regression testing, UI testing, and integration testing on iOS devices. Additionally, we offer app monitoring and analytical services to ensure that your app runs efficiently.

How does Zealous System ensure the seamless integration of iOS applications with the Apple ecosystem?

Zealous System focuses on ensuring seamless integration of iOS applications with the broader Apple ecosystem, leveraging its expertise in Apple’s guidelines and technologies to optimize compatibility across various Apple devices and platforms.

Can you develop an app that supports both iPhone and iPad?

Yes, our iOS app development team is experienced in creating apps that are compatible with both iPhone and iPad devices. We utilize responsive design principles and adaptive layouts to ensure your app provides a seamless user experience across different iOS devices. We possess knowledge and skills in app store optimization (ASO), social media marketing, and other digital marketing methods that can aid in increasing downloads and user engagement for your iOS app.

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.

What is the typical timeline for developing an iOS application with Zealous System?

The timeline for iOS app development varies based on the complexity and requirements of the project. Zealous System works closely with clients to establish realistic timelines and milestones, ensuring timely delivery without compromising quality.

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  • Microsoft Partner
  • Google Agency Partner
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