iOS Mobile App Development Services
iPhone apps built with React Native and Expo, with native Swift modules where iOS demands them.
Who this is for
If any of this sounds like you, we should talk.
You want your product on the App Store
Your customers expect an app icon on their home screen, push notifications, and an experience that feels native to iPhone. A responsive website stopped being enough.
You want iOS today without paying twice for Android tomorrow
We build iOS through React Native and Expo, so the same codebase ships to Google Play when you are ready. One build, both platforms, no second team.
You need native iOS capability, not a wrapped website
Face ID, Apple Pay, push notifications, widgets, HealthKit. Where a feature needs platform code, we write native Swift modules instead of faking it in a web view.
You have an iOS app that needs rescuing
An abandoned build, a rejected submission, or an app that crashes on the latest iOS version. We audit it, tell you straight what it needs, and fix it or rebuild it.
What changes for you
Outcomes you can point to, not features you can ignore.
- An iPhone app in the App Store that follows Apple's Human Interface Guidelines and passes review.
- One codebase that also ships to Android when you are ready, without a second team.
- Native capability where it matters: Face ID, Apple Pay, push, and widgets through Swift modules.
- TestFlight builds throughout the project, so you use the real app long before launch day.
- App Store listing, screenshots, privacy labels, and the review process handled for you.
What is included
Scope, organized by phase.
Discovery (Phase 1 of 4)
Phase 1
Discovery
What we lock down in this phase before moving on.
- Product flows and Human Interface Guidelines review
- Apple Developer account setup or audit
- Privacy labels and App Tracking Transparency plan
- Backend and integration map
How an engagement works
From hello to handoff, step by step.
Book a scoping call
We review your product, your designs, and your backend. You get a straight answer on scope, stack, and what version one should include.
Get a scoped proposal
Within 48 hours you receive a written scope, milestone plan, and fixed deliverables. No vague hourly traps.
Build with TestFlight from the start
You install early builds on your own iPhone and watch the app come together feature by feature. Feedback lands while it is cheap to act on.
Prepare for App Review
Privacy labels, tracking permissions, in app purchase rules, and guideline checks done before submission, not discovered as rejections.
Submit, launch, and iterate
We manage the App Store review until the app is live, then push fixes over the air and ship features through store releases.
Case study
SCRAPD
SCRAPD is live. Buyers browse one-of-one pieces, makers open storefronts with no listing fees, and payouts run through Stripe Connect once a shop passes human review.
SCRAPD needed a curated marketplace for handmade and upcycled goods in the US market, where every storefront is reviewed by a real person and independent makers get paid directly, with the polish buyers expect from modern commerce products.
We built the full product: category browsing across more than twenty crafts, a sustainability rating on every piece, human moderated seller onboarding, and direct creator payouts through Stripe Connect. The same product discipline (payments, moderation, review flows) our iOS builds carry into the App Store.
Why us
What you get with WitsCode that you don't get elsewhere.
Straight about the stack
We ship iOS through React Native and Expo with Swift modules where needed. Most shops bury that. We lead with it, because for most products it is the faster, better call, and when it is not, we say so and point you right.
We know App Review
Privacy labels, App Tracking Transparency, in app purchase rules, rejection appeals. We prepare for review from day one instead of discovering Apple's rules at submission time.
300+ builds of pattern recognition
We have shipped 300+ websites and products since 2019 for clients in 4 countries. Your app inherits that discipline: typed code, real QA, monitoring from launch day.
WitsCode rebuilt our Shopify store so it finally converts the traffic we were already getting. They understand speed and storytelling in equal measure, and the store has been a real growth lever since launch.
Frequently asked
Questions before you reach out.
We build iOS apps with React Native and Expo, and write native Swift modules where a feature needs platform code. That is the honest answer, and for most products it is the right one: you get a real native app on the App Store, plus an Android version from the same codebase. If your product truly needs a pure Swift build, we will tell you straight on the scoping call.
Yes. Apple reviews apps on behavior and guidelines, not on framework, and React Native apps pass review every day, including apps from some of the largest companies on the store. What gets apps rejected is missing privacy labels, broken flows, or guideline violations, which is exactly the preparation we handle before submission.
Yes, all of them. Face ID, Apple Pay, push notifications, camera, location, and most platform features are available through maintained native modules, and anything without coverage gets a custom Swift module written for your app. The cross-platform layer handles your screens and logic; native code handles the platform.
A focused version one typically ships in weeks rather than months, because the cross-platform stack removes duplicate work and TestFlight keeps feedback continuous. Scope drives the timeline: screen count, backend complexity, and native integrations. Your scoped proposal includes a firm timeline before anything starts.
Yes, the app ships under your own Apple Developer account so you own the listing, the reviews, and the relationship with Apple. Enrollment takes a few days and we handle the setup with you during discovery, including certificates, provisioning, and App Store Connect access.
Yes. Because we build with React Native, the codebase already runs on Android. Shipping to Google Play is an additional launch scope (Play Console setup, Android testing, store listing) rather than a second development project. Many clients launch iOS first and follow with Android once the product settles.
Fixes go out over the air without waiting on review, bigger features ship through store releases, and each year we update the app for new iOS versions and devices. Stay on a care plan for that, or take the documented codebase in house. Either way you are not orphaned at launch.
Ready to put your product on the App Store?
Book a free strategy call. You get a scoped proposal within 48 hours, no pressure, no pricing games.