Custom iOS apps with thoughtful UX, smooth performance, and robust technology—built by experts for iPhone, iPad, Mac, Apple Watch, or as a web application.
Schedule a free consultationStrategy, design, development, maintenance
Tailored internal & customer-facing apps
Modern stack & cross-platform expertise
In B2B, iOS is a strong bet. Companies that reach iPhone and iPad users win high-value audiences—provided they rely on stable, future-proof technology.
Cayas Software has delivered custom iOS apps for 12+ years across multiple industries. We pair thoughtful user experience with efficient engineering in .NET MAUI—so you can reuse a significant portion of your code across platforms without sacrificing quality.
From planning and iOS app design to launch and ongoing optimization, we’re your reliable partner end to end.
We scope and build for iPhone, iPad, and Mac—or as a web app—so you meet users where they are.
We plan, design, and build exactly what your business needs. You choose how our iOS team supports you.
We leverage native APIs and platform best practices to ensure quality at every step.
Delight your audience and your teams with a user-friendly iOS app.
Two engagement models
Choose how we support you and your project—full ownership or embedded expertise.
Full-service delivery
Our team plans, designs, builds, and supports your iOS app beyond launch—owning the outcomes so you can focus on the business.
Expert as a Service
Plug our specialists into your existing team through go-live—ideal for accelerating timelines or closing skill gaps. In both models, we stay quality-driven and customer-obsessed.
No matter the model, our experts push your vision forward with energy and ownership.
Learn about flexible collaborationWe specialize in two high-impact domains: (1) internal apps that streamline operations and (2) customer-facing apps that extend your products and brand.
Of course, our experts also build other iOS app types—tailored solutions with foresight and care.
You don’t always need to start from scratch. We modernize existing apps and, with .NET MAUI, can extend them to Android while preserving functionality and UX.
The result: a future-proof codebase, wider reach, and a modern look and feel.
Discuss your iOS app — free consultationCross-platform with .NET MAUI
By leveraging .NET MAUI (the successor to Xamarin) for iOS development, we craft solutions that run across platforms. With XAML-based UIs, we work efficiently—often saving ~30% in development time and cost.
Android app development
We don’t just build for Apple—we also deliver high-performance Android apps. Depending on the use case, we use Java, Kotlin, or .NET for Android to maximize efficiency and reliability.
Big visions, smart ideas, shared success—why teams trust us:
“As interim team lead, Sebastian Seidel not only laid a strong foundation for the Driver App—the team he handed over to me reflects his experience with people and technology.”
“We knew Cayas from a prior workshop and decided to start a project together. The quality we received on the warehouse logistics app was absolutely professional.”
“Cayas was a fantastic partner. Their passion and readiness to move fast—iterating until everything ran flawlessly—was clear throughout the engagement.”
FAQ
Timelines vary by scope, but most projects take about three to five months from kickoff to launch. Smaller apps can ship faster; larger initiatives benefit from a bit more runway. Typical phases include:
We build for all major Apple devices—iPhone, iPad, Apple Watch, Mac, and Apple TV—and we also deliver web applications. Our approach ensures stability on devices Apple actively supports.
Yes. Our designers and engineers follow Apple’s Human Interface Guidelines—from navigation and gestures to typography and spacing—so your app feels native and clears App Store review smoothly.
We offer comprehensive support across the lifecycle, including cross-platform development for iOS and Android—balancing quality and cost efficiency.
From idea to App Store, we align design, engineering, and QA so your project moves forward reliably. Our work ranges from warehouse logistics apps and embedded team support to project management and advisory.
Our services include:
With our full-service approach, you get a solution that wins with users and stakeholders alike.
We combine modern tech with years of experience. We build native apps with Swift and Objective-C, and cross-platform apps in C# via .NET MAUI (formerly Xamarin).
.NET MAUI lets us ship for iOS and Android without maintaining two completely separate codebases—saving time and cost while delivering great UX on every device.
Advantages for organizations building iOS apps with us:
From iPhone UX to map integrations (e.g., OpenStreetMap) to complex business apps—we deliver solutions tailored to your audience.
We run structured testing across devices, OS versions, and real-world scenarios focusing on:
We detect and fix issues early—before your App Store launch.
If you need direct, frequent engagement, a native app offers clear advantages over a traditional website:
With custom iOS development, you get a high-performance tool that keeps users engaged long term.
Absolutely. We regularly upgrade legacy iOS apps—improving security, performance, UX, and adding new capabilities. We also extend apps to Android when it makes sense.
Cost depends on scope, integrations, design depth, and future roadmap. A simple MVP costs less than an enterprise-grade solution with many features.
We provide transparent estimates with no hidden fees—so you have budget and timeline confidence from day one.
We’ve shipped a wide range of cross-platform apps, including:
We blend modern iPhone design with engineering excellence—grounded in Apple’s guidelines and a rigorous testing & QA process.
Yes. We deliver iOS + Android efficiently with frameworks like .NET MAUI, sharing code where it makes sense without compromising UX.
That means faster timelines, lower cost of change, and a consistent experience across devices.
Ready to build a new iOS app—or get expert support to finish strong?
In a free consultation, we’ll answer your questions, give candid feedback, and outline the best path forward.