I help startup founders and SaaS teams build native iOS apps.

fast.

Forget templates, and cross-platform compromises.

Invest in focused, high-quality execution with senior-level attention from idea to App Store.

I’m Mariusz - a freelance iOS expert.

I craft Swift/SwiftUI apps with clean UX, production-ready code, and rapid MVP turnaround.

Let’s Build the Real Thing

How We will work together

Communication

You won’t be left guessing or chasing updates.

Experience clear, structured, and direct founder-to-founder communication. From day one.

You will always know what’s being built, what’s next, and where we are in the process.

Stay in the loop without micromanaging, with frequent, focused updates delivered through channels that work for you. Without bloated meetings.

Say hi to fast-moving, transparent collaboration — designed for founders who don’t have time to babysit their build.

structure. clarity. impact.

You’re not just getting code — you’re getting a product partner.

Years of hands-on experience, which I bring, across development, product thinking, and stakeholder collaboration means nothing slips through the cracks.

From architecture to App Store, we will make together every decision with your end user, launch goals, and long-term scalability in mind.

Transparent costs

You will receive a detailed quote up front — outlining scope, timeline, and deliverables from the start.

Milestones, payments, and scope changes are structured and agreed in advance, not improvised mid-project.

Honest, transparent pricing is at the heart of what you can expect. Zero inflated hours or fuzzy estimates.

Realiable code

Code that lasts — even after handoff.

No low-code, no no-code, no templates — I rely only on native Swift built for real-world use.

Rigorous testing and clear architecture mean fewer bugs, smoother handovers, and real long-term stability. Whether it’s v1 or v5, the foundation holds.

What’s on the Table

I operate at the intersection of hands-on engineering and strategic iOS leadership.

Whether you’re building from scratch or need sharp technical guidance, the goal stays the same: focus, speed, and clean execution.

Hands-on iOS Development

Get clean, reliable iOS builds — fast. From your first MVP to App Store release and long-term updates, everything is written in Swift and SwiftUI, with production-grade architecture and Apple-native polish.

You’ll get:

Fully native iOS apps (no no-code, no templates)
Smooth App Store submission & release support
Support with ongoing updates and performance fixes
Codebase audits that uncover real risks

Technical Leadership & Consulting

Need technical clarity before your next move? I support founders, investors, and product leads as a strategic partner — helping you move faster, hire smarter, and make iOS decisions with confidence.

I can help you with: