iOS App Development — MAGNITUDE STUDIO, LOS ANGELES

iOS App Development That Feels Native

Swift and SwiftUI, written by the same team that designs the screens. Apps that use the platform properly — Face ID, Apple Pay, widgets — and hold up on both iPhone and iPad. One studio takes it from first sketch to submission.

Book a consultation ↗Every product we ship is designed and coded in-house — four so far, all live.

Why native iOS, and why us

iPhone users can tell when an app is a website in a shell. Scrolling stutters, gestures miss, and the features they expect — Face ID, widgets, Apple Pay — never show up. We write Swift and SwiftUI so the app behaves like it belongs on the device, and we architect it so version two doesn’t mean starting over. Design and code under one roof is how we shipped EVNTBL, FREQNCY, DRIVIFY, and PRELLEX — four live products, each one ours from first sketch to launch.

One team, design to code

The people who draw the screens are the people who build them. Nothing gets lost in a handoff, and design decisions survive contact with real code.

Native by default

Swift and SwiftUI first. The app gets platform animation, accessibility, and system integration the way Apple built them — not faked in a wrapper.

Architecture that lasts

Clean layers, tested logic, and a backend built to grow. Adding features later should be normal work, not a rewrite.

How an iOS build runs

Scope

A working session on what the app does and who it serves. We define the smallest version worth shipping, agree on the flat fee, and put the timeline in writing.

Design

Every screen, iPhone and iPad, designed against Apple’s Human Interface Guidelines. You review real flows, not mood boards.

Build

Swift and SwiftUI on the front, the backend and APIs behind it. TestFlight builds go out as features land, so you’re using the app while it’s being made.

Harden

Device testing across screen sizes, crash reporting, performance passes, and a full run through Apple’s review guidelines before anything is submitted.

Ship and support

We handle App Store Connect, the submission, and any reviewer back-and-forth — then stay on for updates, fixes, and new iOS releases.

What an iOS build includes

Native Swift & SwiftUI

The app is written in Apple’s own languages and frameworks — fast, current, and maintainable by any iOS developer, not just us.

Apple Ecosystem Integration

Face ID, Apple Pay, HealthKit, Siri Shortcuts, widgets — wired in where they serve the product, not bolted on as a checklist.

iPhone & iPad Support

Layouts that adapt to every screen size, from the smallest iPhone to iPad Pro, so one codebase covers the whole device line.

Scalable Architecture

A structure that separates screens, logic, and data — plus the backend behind it — so the app can grow without a teardown.

App Store Readiness

Listing assets, privacy labels, guideline compliance, and the submission itself. We manage the review and answer Apple when they push back.

Ongoing Support

iOS moves every year. We keep the app current with new OS versions, new devices, and whatever the product needs next.

The iOS stack

No house framework forced onto every job. We pick the tools the product actually needs.

Native iOS

Swift
SwiftUI
UIKit
Swift Concurrency
Xcode

Backend & data

Node.js
PostgreSQL
CloudKit
Core Data
REST & GraphQL APIs

Delivery

App Store Connect
TestFlight
Fastlane
CI/CD
Crash reporting

Built here, running now

Four products, all live, all designed and coded by this studio: DRIVIFY brings auto services to your driveway — the app, the provider marketplace, and the backend — and PRELLEX gives solo attorneys an AI co-pilot for records, billing, and case management. EVNTBL and FREQNCY round out the set; the full story is in the portfolio.

Bring the idea. Leave with the build plan.

Book a consultation ↗

iOS development, answered

We inherited an iOS codebase from another team. Can you take it over?

Yes. We start with an audit — architecture, dependencies, test coverage, App Store standing — and give you a straight read on what’s solid and what isn’t. Sometimes the right call is to continue the existing code; sometimes it’s a focused rebuild. Either way, you get the honest version in writing before any work starts.

How long does iOS development take?

It depends on scope. An MVP moves fastest; a product with payments, real-time features, or a marketplace takes longer. At the consultation we scope the build and lock a written timeline, so the date you plan around is one we committed to.

Do you build for both iPhone and iPad?

Yes. SwiftUI makes adaptive layouts practical, and we design for both form factors when the product benefits. If iPad adds nothing for your users, we say so and keep the scope tight.

Will my app pass App Store review?

Apple makes the final call, so nobody can promise it honestly. What we can do: build against the review guidelines from the first commit, prepare privacy labels and metadata properly, handle the submission ourselves, and answer any reviewer questions until the app is approved. That preparation is part of every build, not an add-on.

What does an iOS app cost?

One flat fee for the whole build, fixed before work starts — nothing billed by the hour, nothing added to the invoice later. If scope changes along the way, we re-price before the work happens, never after.

Start with the consultation

Magnitude is how scientists measure what gets felt. So do we.

Bring the idea, the half-built codebase, or the app that needs a rescue. We’ll tell you what it takes to ship it — and put the plan, the fee, and the timeline in writing.

Book a consultation ↗