Hire Dedicated iOS Developers

Hire iOS Developers Who Ship Swift Apps That Pass App Review

Most apps do not fail in the App Store queue. They fail six months earlier, when someone who writes web code is asked to write Swift. Stallyons is a Delaware-registered US company whose senior iOS engineers work your hours, on one contract, with your IP signed over before anyone gets access.

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Why iOS Works Here

Swift & SwiftUI

Native Only

Senior iOS Only

Vetted Devs

Timezone Overlap

Live Hours

IP Protection

Signed First

Delaware LLC

US Entity

Data Security

Access Rules

Quality Control

Code Review

Communication Rhythm

Daily Sync

Release Path

TestFlight

IP Assignment

Signed

Delivery Overlap

Fixed

 Hours

Code & IP Owner

You

Trusted By Startups

What iOS Developers Actually Do On Your Product

Hiring iOS developers means putting engineers on your product who write Swift natively, follow Apple's Human Interface Guidelines, and know what App Review will and will not pass. That is not the same as hiring a mobile generalist. Apple's platform has its own release process, its own privacy rules and its own idea of what a good app feels like, and none of it is learned on the way to your deadline.

Stallyons is registered in Delaware as a US company and our senior engineers work global hours, which is what makes a distributed iOS team workable at all. You sign a US contract, run diligence on a US entity and pay one US invoice, while the engineers on your account are people we would put in front of any client. We work with founders, CTOs and product leaders across the United States, Canada, the UK and Europe, the Middle East, Singapore, Australia, New Zealand and South Africa.

What Our iOS Engineers Cover

Native builds, not wrappers: Swift and SwiftUI written against Apple's own frameworks, so the app behaves the way an iPhone owner expects rather than the way a web view behaves inside a shell around it.

Delivery on your clock: we agree an overlap window before anything starts, so stand-ups, design reviews and release decisions happen live with your working day instead of landing overnight.

IP protection and security: NDA and IP assignment are signed before a single credential moves, and your App Store Connect and Apple Developer accounts stay in your own organisation's name.

Risk mitigation built into the engagement: written scope, named engineers, documented decisions and briefed cover, so a holiday, an illness or an exit never stalls your next release.

Quality control you can inspect: code review on every merge, XCTest coverage, an agreed definition of done, and TestFlight builds you install before anything reaches App Review.

One accountable vendor: one contract, one invoice, one entity to run legal and finance diligence on, instead of a freelancer, a designer and a QA contractor in three jurisdictions.

Why Companies Hire Dedicated iOS Developers Rather Than Freelance

How To Hire iOS Developers Without Risk

Every engagement starts with a free 45-minute strategy session. No slide deck, no sales script. You bring the app and the constraints; you leave with a recommended team shape, a clear scope and a timeline.

We are selective about new engagements and cap how many we run at once, because the vetting is the product. If we cannot staff your app with iOS engineers we would vouch for, we will tell you so.

Why Clients Choose Us

Full

Written IP Transfer

USA

Contract Entity

Yours

Apple Dev Account

Named

Senior Swift

Ready to put a senior iOS developer on your app?

What Our iOS Developers Build

What You Can Build With iOS Developers

Native iOS work rewards teams who already know the platform. These are the builds we take on most often, each with an agreed scope, an overlap window and the same review standard applied to every single merge.

Consumer iPhone Apps

Swift, SwiftUI, UIKit, App Store

End-to-End

iPad & Universal

Split view, larger layouts, Pencil

One Codebase

watchOS & Widgets

Watch apps, complications, widgets

On Wrist

Enterprise iOS Apps

MDM, SSO, internal distribution

Live In Production

SwiftUI Move

UIKit to SwiftUI, Obj-C to Swift

Incremental

In-App Purchasing

Subscriptions, StoreKit, paywalls

Checkout

APIs And Integrations

REST, GraphQL, push, HealthKit

Linked

QA & Test Automation

XCTest, device labs, TestFlight builds

Sign-Off

App Store Releases

Submission, review, phased rollout

Shipped Live

Support & Maintenance

Crash triage, iOS upgrades, fixes

Kept Running

Not sure what your iOS build needs? Let's scope it together.

Common Challenges

Where Hiring iOS Developers Goes Wrong

Six patterns behind almost every stalled iOS project. None of them are about how hard Swift is to learn.

Web Devs In Swift

01

A web engineer can write Swift that compiles. It will still fight the platform: wrong navigation model, wrong lifecycle handling, wrong memory assumptions, and a UI that feels borrowed from a browser.

App Store Rejection

02

Review rejects on privacy strings, account deletion, payment rules and metadata far more often than on code. A team that never read the guidelines finds out late.

Juniors On Your App

03

The senior engineer in the pitch is rarely the one who writes the code. Nobody tells you when the work moves across to whoever is on the bench.

Accounts Not Yours

04

Plenty of apps ship under a vendor's Apple Developer account. You discover exactly what that means the day you change vendors and cannot reach your own listing.

Rework Eats The Timeline

05

Code that ships without review, tests or an agreed definition of done comes back as bugs, and every extra round trip through App Review costs days nobody budgeted for.

Nobody Owns The Outcome

06

Split design, build and QA across three vendors and every missed release has a plausible owner elsewhere. Accountability needs one name on one contract.

Recognise a few of these? Let's do it properly.

Our iOS Dev Services

6 Ways To Work With Our iOS Developers

Six ways to put senior iOS engineers on your product under one contract. Run one, or run several of them in parallel.

End-To-End iOS App Builds

01

End-to-end delivery of a defined iOS product or module: scope, build, test and release to the App Store, with a named lead who reports into you and a plan you approve first.

Dedicated iOS Team

02

A standing iOS engineering base that works alongside your in-house team. Same tools, same board, same review rules, without you recruiting Swift engineers in your own market.

SwiftUI Modernization

03

Older UIKit and Objective-C apps moved to Swift and SwiftUI in stages, screen by screen, with the shipped app working the whole way through.

iOS QA & Device Testing

04

Testing capacity that runs on your release cycle: XCTest suites, real-device passes across the iOS versions you support, and a written sign-off before submission.

App Store & Release Ops

05

Fastlane pipelines, signing and provisioning, TestFlight distribution, phased rollout and the metadata work that keeps App Review from sending it back.

Backend, APIs & Integrations

06

The services behind the app: REST and GraphQL endpoints, push notifications, auth, payments and third-party SDKs, built and tested against your own environments.

Not sure which iOS engagement fits you? Let's scope it together.

Why Choose Us

What Makes Our iOS Developers Different To Hire

The details that decide whether an iOS build actually ships, rather than the ones that demo well.

A US Legal Entity

01

Stallyons is registered in Delaware. Your contract, your invoice and your legal recourse sit with a US company, not an unknown one.

Native, Not Wrapped

02

We write Swift against Apple's own frameworks. If a cross-platform tool is the better call for your product, we will say so first.

Overlap You Set

03

You choose the hours we share with your working day, and stand-ups, reviews and escalations all happen inside that window.

Your Apple Account

04

Your organisation holds the Apple Developer and App Store Connect accounts from day one. We work inside them with access scoped per person.

Reviewed Code

05

Every merge is reviewed against an agreed definition of done, on your board, where you can read it yourself.

One Contract

06

One contract covers the engagement, so procurement, legal and finance each deal with a single named counterparty.

Ready to see how we run an iOS engagement here?

Our Process

From First Call To Hired iOS Developers In Six Steps

A buying process built to surface the risks early, before anyone signs or writes any Swift.

Discovery

Understand the app, stack, hours and budget

Scoping

Agree the model, scope and cost structure

Select

Meet and approve the iOS engineers assigned

Contracting

NDA, IP assignment, access and onboarding

Deliver

TestFlight builds, reviewed on merge

Review & Scale

Regular reviews, adjust the scope as needed

Want to see how this maps to your roadmap?

Technology Stack

The Stack Our iOS Developers Work In Daily

The frameworks, tools and services our iOS engineers work in every day, from Swift to release pipelines.

Languages & UI

Swift / SwiftUI

UIKit/Combine

Swift Concurrency

Xcode / SPM

TestFlight

Apple Platforms & SDKs

iOS / iPadOS

watchOS / tvOS

HealthKit API

MapKit

ARKit / Core ML

AI / ML / Data

OpenAI / Claude

Core ML Models

PyTorch / TensorFlow

Hugging Face

Vision & Speech APIs

Backend & Data

Node.js / REST

Firebase SDK

PostgreSQL

GraphQL / MongoDB

Python / Django

Cloud & DevOps

AWS / GCP / Azure

Fastlane CI

GitHub Actions

App Store Connect

Crashlytics / Logs

Industries We Serve

iOS Developers For Industries With Real Constraints

Engineers who already know your compliance rules and platform edge cases spend month one shipping, not asking.

Fintech & Payments

Apple Pay, KYC, card wallets

Healthcare & HealthTech

HealthKit, patient apps, records

Retail & E-Commerce

Storefront apps, Apple Pay, scan

EdTech & Learning

Courses, video, offline downloads

SaaS & Digital Products

Subscriptions, SSO, onboarding

Logistics & Supply Chain

Driver apps, scanning, routing

Manufacturing & IoT

BLE sensors, telemetry, control

Agencies & Consultancies

White-label iOS build capacity

We know your industry. Let's plan the iOS build.

How We Compare

Freelance vs Agency vs Dedicated iOS Developers

An honest look at your four hiring options.

CapabilityLocal iOS AgencyFreelance MarketplaceLarge Dev VendorStallyons
Technologies
Native Swift DepthIn-House Swift Unverified Wrapped Web Swift Specialists Only
Senior Or Junior StaffingMixed Team Unverified Juniors Staffed Senior Engineers Only
Real Overlap HoursSame Time Zone WheneverShift Handover Agreed Overlap
Contracting EntityLocal Entity Platform TermsOverseas Entity US-Registered LLC
Apple Developer AccountOn Request Vendor OwnedNegotiated Yours From Day One
IP AssignmentIn The Contract Platform DefaultNegotiated Signed Before Access
Escalation PathAccount Manager No Recourse Ticket Queue Named Lead
Handover & Lock-InOn Request Nothing Written Vendor Lock-In Documented Handover

See the difference for yourself

Complete Engagement

Everything Included When You Hire iOS Developers

From Scoping to Contracting to Release, One Team

Here's everything included when you hire iOS developers here:

Scoping & Estimation

Named iOS Devs

Contract & IP Setup

Overlap Hours Agreed

Code Review & QA Standards

Security & Access Control

Regular Reporting

Handover & Documentation

All-Inclusive iOS Delivery: No Hidden Fees, No Surprises.

Every iOS engagement includes all eight components above. One contract, one senior team, one predictable cost, no vendor sprawl.

🔒 No obligation. We'll deliver a detailed proposal within 48 hours.

Plus, Get These Free Bonuses

Free iOS App Review

A written read on what your iOS app needs next, what App Review will question, and what has to be true before a release date is realistic. Yours to keep.

Included Free

Delivery Plan & Estimate

A phased delivery plan with scope, milestones, a stack recommendation and a transparent, itemized estimate for the engagement.

Included Free

Free Hiring Checklist

The questions we would ask any iOS team about code, accounts, security and staffing, so you can put us through the same test.

Included Free

Risk-Free Partnership

What Our iOS Developers Promise

We stand behind every engagement with commitments that protect your investment.

01

Scope Agreed First

Scope, model, working hours and cost structure are written down and agreed before contracting, so nothing is discovered later.

02

Built to Last

Senior developers, code review, automated tests, security and accessibility audits, and clean, documented code you fully own.

03

IP And Access Protected

NDA and IP assignment are signed before access, permissions are scoped per person, and your Apple accounts stay under your control.

Start your iOS build with confidence, backed by our Triple Protection Guarantee.

Track Record

Engagements That Ship, Scale, and Compound

500+

Projects Delivered

29+

Service Categories

81%

Repeat Client Rate

4.9 ★

Clutch Rating

"We came to Stallyons after burning two years and four vendors on a multi-platform launch that kept slipping. They scoped it end-to-end — web app, iOS, Android, an AI summarization layer, and a Shopify integration — and shipped it in 22 weeks. One team, one budget, one quality bar. We've handed them three more engagements since."

Mark Sawyer

CEO/Founder

PlatinumLED

"Stallyons rebuilt our customer-facing portal, integrated three legacy systems, shipped an AI document analysis pipeline, and brought our compliance posture to SOC 2 — all under one engagement. The senior engineers on the team have shipped at companies five times our size. It's the best vendor decision we've made in a decade."

Mark Sawyer

CEO/Founder

PlatinumLED

FAQ

Frequently Asked Questions About iOS Developers

An iOS developer builds and maintains applications that run on Apple’s platforms, writing Swift against Apple’s own frameworks rather than wrapping a website. The job covers architecture, interface work to Apple’s Human Interface Guidelines, integration with device APIs, testing on real hardware, and getting the build through App Review and out to users. Most of the difficulty sits in the last two.
Native means Swift and Apple’s own frameworks: best performance, immediate access to new OS features, and the interface behaviour iPhone owners already expect. React Native and Flutter share one codebase across iOS and Android, which is cheaper when the app is mostly screens and forms, and painful when it leans on the camera, sensors, background work or platform-specific design. Pick native when the app is the product, not a channel.
Rates move with seniority, region and how much management you buy, so a single number quoted before any questions is a guess. What actually decides your cost is the seniority mix, how tightly the scope is defined, and how much rework the engagement generates. We price after scoping, itemized, so you can see what each part of the team costs before committing.
A freelancer works when the scope is small, well defined and unlikely to move. A team makes sense once you need design, build, QA and release running together, or once someone has to answer for the roadmap rather than the ticket. Ask who covers holidays, who reviews the code, and who holds the Apple accounts. Those three answers usually settle it.
You do, from the first commit. NDA and IP assignment are signed before anyone gets repository access, with no licence-back and no shared ownership. The Apple Developer and App Store Connect accounts are registered to your organisation, and repositories, design files and documentation live in your accounts throughout.
We read the current guidelines before we build, not after a rejection, and the usual traps are handled up front: privacy manifests and tracking disclosures, account deletion, subscription and payment rules, and metadata that matches what the app really does. If a rejection does land, we answer it the same working day and tell you what changed.
You set an overlap window before work starts, and stand-ups, design reviews and release decisions happen inside it, whether you sit in North America, the UK and Europe, the Middle East, Singapore, or Australia and New Zealand. Work is tracked on your board, decisions are written down, and you escalate to a named lead rather than a shared inbox.
We agree the supported range with you before the first sprint, normally the current iOS release and the two before it, which covers almost every active device without holding the codebase back. Device fragmentation is mild on iOS, but screen sizes, Dynamic Island, iPad multitasking and older chipsets still need testing on real hardware rather than simulators alone.

Still have questions? Let's talk.

Schedule an appointment with us today!

Ready to Hire iOS Developers Without the Risk?

Get a free consultation. We'll go through your app, recommend a team shape, and send a detailed written proposal.





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