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IOS APP DEVELOPMENT SERVICES

iOS App Development Services That Pass App Store Review the First Time

Built to Apple's Human Interface Guidelines from the first screen, not retrofitted right before submission. We handle App Store review to avoid the rejection reasons that quietly cost teams a week or more.

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BONUS Free: Mobile App Feature Prioritization Matrix — MoSCoW-method worksheet for scoping phase 1 vs. phase 2 features before your first vendor call.

We reply within one business day. No spam, no obligation.

In short: Northell's iOS app development follows Apple's Human Interface Guidelines and handles App Store submission to avoid rejections that cost weeks of delay.
CAPABILITIES

What iOS App Development Covers

Native iOS Development

Swift and SwiftUI builds following Apple's Human Interface Guidelines from the first screen.

App Store Submission

Metadata, privacy compliance, and listing prepared to avoid the most common rejection reasons.

TestFlight Beta Management

Internal and external beta distribution set up before public launch.

Backend & API Integration

Connects to your existing backend or we build one alongside the app, scoped together.

FIT CHECK

Built for Specific Buyers, Not Everyone

Founders Launching an iOS-First Product

Primary market skews iOS and the app needs to feel genuinely native, not cross-platform-generic.

Teams With an Existing Android App

Need an iOS counterpart built to the same product spec, done properly rather than rushed.

Companies Modernizing a Legacy iOS App

An older Objective-C or early-Swift app needs a rebuild against current iOS conventions.

If you need both iOS and Android with a smaller budget or timeline, cross-platform development will likely serve you better than two separate native builds.

PROCESS

From Kickoff to Launch

01

Scoping & Architecture

We define screens, data flows, and backend requirements before writing code.

→ Scope document + architecture plan
02

Build in Sprints

Working builds delivered every 2 weeks, installable via TestFlight for review.

→ Testable TestFlight builds
03

Pre-Submission QA

Checked against Apple's review guidelines and real-device testing before submission.

→ Submission-ready build
04

App Store Launch

Submission, review monitoring, and launch through to a live App Store listing.

→ Live App Store app
STACK

Technologies We Use

Language
SwiftSwiftUI
Architecture
MVVMCombineCore Data
Backend
REST/GraphQLFirebaseNode.js
Testing
XCTestTestFlight
TODO iOS apps shipped — not yet tracked separately
TODO average build timeline
TODO average App Store rating on launched apps
FAQ

Common Questions About iOS App Development

What are the most common App Store rejection reasons you avoid?

Incomplete metadata, privacy policy gaps, and features that don't work as described in the listing are the most common — we check against Apple's review guidelines before submission, not after a rejection costs a week.

Swift or SwiftUI?

SwiftUI for new development where it fits, UIKit for parts of an app needing finer control or where an existing codebase already standardizes on it — matched to the actual project, not a default preference.

How long does App Store review actually take?

Typically 1-3 days if the submission is clean; longer if Apple flags something for manual review. We build submissions to minimize the chance of a flag in the first place.

Can you take over an existing iOS codebase?

Yes — we start with a codebase audit before committing to a timeline for new work, same as any takeover engagement.

Do you handle TestFlight beta distribution?

Yes — TestFlight setup for internal or external beta testing is typically part of the pre-launch process.

Start Your iOS App Development Project