SWIFT & APPLE ECOSYSTEM ENGINEERING
Work with Swift experts trusted by the world's top tech teams.
Our Apple ecosystem engineers architect high-performance native applications. Work with vetted nearshore experts specializing in advanced Swift Concurrency (Actors/Async-Await), SwiftUI, VisionOS, and complex modular architectures using Swift Package Manager.
AI CODING TOOLS WE USE
Get expert help for your
Swift project.
ENDORSED BY ENGINEERS. TRUSTED BY CTOS.
CUSTOM SWIFT SERVICES
Advanced Native Apple Engineering
We go far beyond basic app development. We engineer memory-safe, strictly typed software that extracts maximum performance from Apple's proprietary silicon, from iPhones to the Vision Pro.
We eliminate race conditions. By deeply integrating modern Swift Concurrency, including `async/await`, Task Groups, and strictly isolated Actors, we ensure highly complex, multi-threaded networking code is mathematically safe and legible.
We build pixel-perfect, reactive interfaces. We leverage SwiftUI's declarative syntax and the Combine framework to rapidly engineer fluid, highly animated user interfaces that deploy seamlessly across iOS, iPadOS, and macOS.
We engineer for the next frontier. We utilize RealityKit and ARKit to build immersive, 3D spatial computing applications specifically tailored for Apple Vision Pro and modern iPad LiDAR sensors.
We untangle massive monolithic codebases. We utilize the Swift Package Manager (SPM) to break down complex apps into independent, highly testable micro-features, drastically improving Xcode build times for large teams.
We manage complex local state securely. We implement robust, offline-first data architectures utilizing legacy Core Data or the modern, macro-driven SwiftData framework to ensure zero data loss.
We migrate legacy code safely. Using strict Bridging Headers, we allow modern Swift logic to interact flawlessly with decades-old Objective-C code, enabling incremental modernization without massive rewrite risks.
We automate the pain of provisioning profiles. We architect robust CI/CD pipelines using Fastlane and Xcode Cloud to automatically run XCTest suites, sign binaries, and push releases directly to TestFlight.
We unify the stack. For teams exclusively comprised of iOS engineers, we utilize the Vapor framework and Swift NIO to build incredibly fast, type-safe REST APIs directly in Swift, sharing native code across the frontend and backend.
Their engineers perform at very high standards. We've had a strong relationship for almost 3 years.”
The best partnerships are the ones you don't have to worry about. We deliver the kind of technical execution and reliability that builds long-term trust. It's why clients consistently praise our work quality and performance.
OUR SWIFT ENGINEERING TEAM
Why tech leaders choose our iOS Architects:
We provide seasoned native engineers who understand the deep internals of LLVM, strict memory management (ARC), and the nuances of the iOS run loop. We don't rely on cross-platform abstractions.
Swift CASE STUDIES
Numbers of Swift projects delivered.
Our clients rely on us for Swift software that satisfies strict performance, security, and compliance targets. From high-volume payment gateways to HIPAA-aligned healthcare services, our Swift applications stay in production years after launch.
Swift Concurrency & Actors
Spatial Computing (VisionOS)
Secure Data Persistence
Looking for a team with this kind of
track record?
Tell us more about your Swift needs.
AI EXPERTS
Work with AI-augmented Swift developers.
Every developer we provide uses modern AI coding tools to ship faster than ever while producing cleaner, more consistent code.
TOOLS FOR SWIFT DEVELOPMENT
The ecosystem we use for Apple engineering:
We build heavily resilient infrastructure utilizing the deepest native capabilities of the Apple ecosystem, bypassing cross-platform abstractions for maximum performance.
We utilize the absolute latest advancements in the Swift compiler for memory-safe, highly concurrent data processing.
We design fluid, responsive interfaces using modern declarative syntax while maintaining deep UIKit knowledge for complex custom views.
We architect robust local data layers, ensuring complex app state persists securely even when completely offline.
We dive deep into Apple's proprietary SDKs to build apps that interact directly with the physical world.
We untangle massive monolithic codebases into highly testable, independently compilable micro-features.
We rigorously test business logic and UI flows natively without relying on brittle third-party testing frameworks.
We automate the painful App Store submission process, ensuring rapid, consistent deployments to QA and production.
We bridge the gap between decades-old legacy codebases and blazing-fast server-side Swift architectures.
We utilize the absolute latest advancements in the Swift compiler for memory-safe, highly concurrent data processing.
CLIENT TESTIMONIALS
Get Swift results you can stand behind.
Our work holds up in reviews, in production, and in front of the board.
Digital Commerce
Developed BitForge's Modern Digital Commerce Platform
"Finding engineers who could quickly understand our product vision and execute at a high level was our biggest challenge. Agency consistently provided outstanding developers who became trusted contributors, helping us build BitForge into a reliable and scalable digital marketplace."
Digital Commerce
Developed BitForge's Modern Digital Commerce Platform
BitForge was created to provide a secure digital marketplace for buying and selling software products, digital assets, and downloadable content. Our engineers developed a scalable full-stack platform featuring secure authentication, role-based access control, payment processing, cloud storage integration, and an optimized user experience that supports reliable transactions and future platform growth.
HEALTHCARE
Healthcare & MedTech
"What stands out most about Agency is the quality of its people. They consistently provide talented, experienced developers who quickly become trusted members of our team, helping us deliver reliable software on time and at a high standard."
Networking
Developed new Communication Platform
"Agency helped us transform an ambitious idea into a successful product. Their ability to rapidly source experienced developers and seamlessly integrate them into our team allowed us to accelerate development without compromising on quality."
Networking
Developed new Communication Platform
A growing business needed a modern communication platform to connect teams and customers more efficiently. Our engineers designed scalable backend services, built real-time messaging capabilities, integrated secure APIs, and optimized the user experience to support rapid growth, high availability, and seamless collaboration.
Platform as a Service(Paas)
Scaled and Maintained Deployra's AWS Infrastructure
"Agency has been an outstanding technology partner throughout our growth. Their engineers consistently delivered high-quality solutions, adapted quickly to evolving requirements, and helped us build a reliable deployment platform we're confident will scale with our business for years to come."
Join 50+ companies who count on our Swift developers
FLEXIBLE ENGAGEMENT MODELS
Need extra Swift expertise?
Plug us in where you need us most.
We customize every engagement to fit your workflow, priorities, and delivery needs.
STAFF AUGMENTATION
Extend Your Engineering Team with Senior Talent
Quickly scale your development capacity with experienced software engineers who integrate seamlessly into your existing team. They work within your processes, collaborate in your daily ceremonies, and deliver production-ready code from day one.
DEDICATED TEAMS
Need a dedicated team to deliver products faster?
Build a cross-functional engineering team tailored to your product goals. We assemble developers, designers, QA engineers, and project managers who take ownership of delivery, collaborate closely with your stakeholders, and drive projects from planning through production.
SOFTWARE OUTSOURCING
Need an experienced team to own your entire project?
Entrust your complete software development lifecycle to our experienced engineering teams. From discovery and architecture to development, testing, deployment, and ongoing support, we take full ownership while keeping you informed through every milestone.
Extend Your Engineering Team with Senior Talent
STAFF AUGMENTATION
Quickly scale your development capacity with experienced software engineers who integrate seamlessly into your existing team. They work within your processes, collaborate in your daily ceremonies, and deliver production-ready code from day one.
Need a dedicated team to deliver products faster?
DEDICATED TEAMS
Build a cross-functional engineering team tailored to your product goals. We assemble developers, designers, QA engineers, and project managers who take ownership of delivery, collaborate closely with your stakeholders, and drive projects from planning through production.
Need an experienced team to own your entire project?
SOFTWARE OUTSOURCING
Entrust your complete software development lifecycle to our experienced engineering teams. From discovery and architecture to development, testing, deployment, and ongoing support, we take full ownership while keeping you informed through every milestone.
Kick off Swift projects in 2 - 4 weeks.
We have reps
across the US.
Speak with a client engagement specialist near you.
Discuss solutions and decide team structure.
Tell us more about your needs. We'll discuss the best-fit solutions and team structure based on your success metrics, timeline, budget, and required skill sets.
Onboard your team and get to work.
With project specifications finalized, we select your team. We're able to onboard developers and assemble dedicated teams in 2-4 weeks after signature.
We track performance on an ongoing basis.
We continually monitor our teams' work to make sure they're meeting your quantity and quality of work standards at all times.
Swift FAQ
What tech leaders ask about Swift before pulling us in:
It depends heavily on your requirements. React Native and Flutter are excellent for getting a standard B2B app to market quickly. However, if your app requires complex animations, 3D rendering, deep hardware integration (like Bluetooth, ARKit, or Apple Watch), or maximum battery/memory efficiency, you must use Native Swift. Cross-platform frameworks often struggle to match the sheer performance of natively compiled code.
Historically, writing asynchronous code in iOS (like downloading a file) required messy completion handlers or complex GCD (Grand Central Dispatch) queues, frequently causing app crashes due to 'race conditions'. Modern Swift introduces `async/await` and Actors. Actors mathematically isolate data, guaranteeing at compile-time that two threads cannot modify the same variable simultaneously, eliminating a massive class of bugs.
No. Apple designed Swift with complete Objective-C interoperability. We use 'Bridging Headers' to write brand new features in modern Swift while they seamlessly interact with your old Objective-C codebase. This allows us to slowly modernize your enterprise app over time without the massive risk, cost, and downtime of a complete 'big bang' rewrite.
For new projects, SwiftUI is the absolute standard. It allows us to write user interfaces declaratively (much like React), drastically reducing development time and eliminating massive View Controllers. However, for extremely complex, custom UI interactions that SwiftUI doesn't fully support yet, we will drop down into UIKit. They can seamlessly and securely coexist within the same application.
Core Data has been Apple's primary local database framework for over a decade. It is powerful but notoriously complex and error-prone. SwiftData is Apple's modern replacement. It uses advanced Swift macros (`@Model`) to eliminate the heavy boilerplate of Core Data, making local data persistence much faster and safer to implement while still providing the same underlying SQLite power.
Yes. Because VisionOS is built on the same foundational frameworks as iOS and macOS, our Swift engineers can utilize SwiftUI, ARKit, and RealityKit to build deeply immersive spatial computing applications that seamlessly blend 3D digital content with the user's physical environment.
As iOS apps grow, putting all the code in a single target creates a 'monolith' that can take 15+ minutes to compile in Xcode. We utilize the Swift Package Manager (SPM) to execute a Modular Architecture. We break the app down into isolated, independent micro-packages (e.g., 'AuthPackage', 'CheckoutPackage'). This drastically reduces compile times and allows massive teams to work without merge conflicts.
Yes. While Node.js or Java are more common, frameworks like Vapor allow us to write high-performance, strictly typed web servers entirely in Swift. This is incredibly advantageous if you have a large team of iOS developers, as it allows them to work across the full stack (frontend and backend) using the exact same language, sharing data models directly between the server and the iPhone.
