iOS Apps Built to Feel Native
Your users know the difference between a polished iOS app and a wrapped website. We build real Swift apps — the kind that feel at home on Apple hardware and sail through App Store review.
Native vs. Cross-Platform
Why native Swift is still the right call
Flutter and React Native have their place — but if you're targeting iOS users who expect premium experiences, native Swift gives you capabilities and polish that cross-platform frameworks can't match. Day-one access to new iOS features, platform-native animations, and zero translation layer between your code and the hardware.
Full iOS Framework Access
Face ID, Apple Pay, HealthKit, ARKit, Core Location, Push Notifications, Widgets, App Clips — the entire Apple ecosystem, available from day one. No waiting for a third-party bridge to catch up with the latest iOS release.
Platform-Native Performance
Smooth 60fps animations, instant gesture response, and efficient battery usage. SwiftUI's declarative rendering and Swift's concurrency model (async/await, Combine) mean your app behaves exactly the way iOS users expect.
Modern Swift Stack
SwiftUI for declarative, composable UIs. Async/await and Combine for clean async code. SwiftData (or Core Data) for local persistence. No legacy Objective-C baggage — just modern, type-safe Swift that's easy to maintain and extend.
Capabilities
What we build
From consumer apps to internal business tools, we've shipped iOS apps across a range of categories.
- Consumer apps with monetization.
- App Store distribution with subscriptions, in-app purchases, and StoreKit 2 — set up correctly so Apple approves it the first time.
- API-connected mobile clients.
- Companion apps for existing web platforms — secure auth, real-time sync, offline-first data with SwiftData, and clean separation between your API and UI layers.
- Field and internal business tools.
- Custom enterprise apps distributed via TestFlight or MDM — built for reliability in real working conditions, not just a demo environment.
- Investor-ready iOS MVPs.
- A polished TestFlight build you can put in front of investors or beta users — not a prototype, not a Figma export, a real app that demonstrates the core experience.
Why Cobalt Sentry
Experience meets modern delivery
- 20+ Years Shipping Software
- Elixir, Phoenix, Swift, and Astro in production. Not a generalist shop that Googles your stack after the contract is signed.
- Fixed-Price, No Surprises
- You know the cost before we write a line of code. No hourly billing, no scope creep invoices, no "we need another sprint."
- You Own Everything
- Full source code, deployment credentials, and documentation on handoff. No lock-in, no retainer required to keep the lights on.
Process
From concept to App Store
A clear process that keeps you in the loop throughout — with TestFlight builds early and often so there are no surprises at launch.
- 1
Scope & Architecture
We map your core features, user flows, and data model. Review App Store guidelines up front to prevent rejections later. You receive a fixed price before any code is written.
- 2
Swift Development
Built with SwiftUI and modern Swift concurrency. You get TestFlight access from week one — real builds on real devices, not screenshots of a simulator.
- 3
Review Prep & Polish
Final round of testing across device sizes, edge case handling, and App Store asset preparation — screenshots, description, privacy policy, and metadata done right.
- 4
Submission & Launch
We handle App Store submission and stay available through the review process. When it's live, you get full source code, certificates, and deployment access.
Fixed-Price iOS Development
Fixed-price projects, no hourly rates. Get a detailed quote tailored to your specific requirements.
Ready to get started?
Get in touch to discuss your project and receive a detailed proposal within 24 hours.
Start Your Project
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