iOS and Android mobile app development

Mobile Apps Built to Ship. And
Built to Stay Live.

We build iOS and Android apps that pass app store review on the first try. React Native for speed. Swift and Kotlin when your feature set genuinely needs it.

iOS SwiftAndroid KotlinReact Native
94+ apps shippedDay-one app store approval90-day post-launch support
Mobile app development deliverables

Four things we build into every project. Most agencies charge extra for them — or skip them entirely.

These are not add-ons. Every mobile app we ship includes all four.

0
Cross-platform delivery

Your app reaches iOS and Android users on the same day. We submit to both stores together. No sequential delays. No waiting for a second build cycle.

React Native services
Day one
App store compliance built in

We review Apple and Google guidelines before we write a line of code. Compliance is designed in from the start, not checked at submission. Every app we have submitted has been approved on the first attempt.

API-first
Backend built in the same engagement

Your app and its backend are designed together. Data contracts are agreed before the first sprint. The build never stalls waiting on an API that does not exist yet.

Custom software services
90 days
Post-launch support included

Bug fixes, OS updates, crash responses, and app store re-reviews are covered for 90 days. You also receive the full source code and a step-by-step technical handover document.

View support details
The mobile app development problem

Most mobile apps never survive their first year in the stores.

The same three failures kill most mobile projects. Every one of them shows up in week one — if you know where to look.

0%
Of enterprise mobile app projects run over budget or past deadline. Source: Gartner.
0%
Of app store rejections trace to guideline violations that QA would have caught.
0%
Of users permanently abandon an app after one bad experience on first launch.

We spent 18 months building something that got rejected from the App Store twice, ran 60 percent over budget, and launched to users who quit in the first week. Every failure was visible in week one — if anyone had been honest about the scope.

Operations Director, Series B SaaS company — post-launch review

Development team reviewing healthy retention analytics dashboard after a successful mobile app launch
Built for your specific app type

The right approach depends on who uses your app and why they need it.

Consumer apps, enterprise tools, and startup MVPs need different decisions from day one. Choose your build type to see how we approach yours.

🛍
Consumer App
A B2C product your users download and open by choice. App Store discoverability and first-launch experience drive your growth.
🏢
Enterprise App
An internal tool or B2B app deployed to company devices. Security, MDM compatibility, and SSO are built in from the start.
Startup MVP
Your first version, shipped to both stores fast. Built with the architecture to scale without a full rewrite at round B.

Consumer App: built for conversion from the first screen.

  • ASO built into the scope, not added before submission. Keyword targeting, screenshot hierarchies, and store listing copy are planned during scoping. Your app is findable from day one.
  • Onboarding that converts in under 60 seconds. First-launch flow, permission timing, and push opt-in prompts follow patterns proven across consumer installs. We do not guess.
  • In-app payments wired from sprint one. StoreKit 2 and Google Billing are integrated at the start. Subscriptions, trial logic, and billing recovery ship on day one.
  • Real retention data from the moment of first install. We wire Mixpanel, Amplitude, or Firebase to every user action. By launch day, you have real data — not post-launch setup scramble.
  • App Review compliance is a design constraint, not a submission checklist. Apple and Google guidelines are active during every sprint. We handle submission and resolve reviewer queries on your behalf.
8 to 14 weeks
Typical consumer app build
Day one
iOS and Android submitted together
9:41
Discover Listings
Real estate near you
3 bed, 2 bath · Austin
0.4 miles away
$2,450
Studio loft, downtown
0.9 miles away
$1,820
2 bed near transit hub
1.2 miles away
$1,990
iOS LiveAndroid Live4.8 Stars

Enterprise App: security and MDM compliance built in from day one.

  • SSO and zero-trust authentication on both platforms. SAML, OAuth 2.0, and your corporate identity provider are integrated at the API layer. Biometric re-auth is supported on both iOS and Android.
  • MDM-ready deployment out of the box. App packages are configured for Jamf, Intune, and VMware Workspace ONE. Silent install and forced update flows are built and tested before handover.
  • Encryption and data residency that satisfies your security team. On-device data uses AES-256 encryption. Network traffic is certificate-pinned. Data residency rules are enforced at both the API and storage layer.
  • Works in the field, even without a signal. The app functions reliably in warehouses, field operations, and restricted networks. Sync resumes automatically when the connection returns.
  • Role-based access control from the first sprint. Admin, manager, and operator roles ship with clearly defined permissions. Access is enforced at both the API and UI layers.
12 to 20 weeks
Typical enterprise build
MDM-ready
Delivered on handover day
9:41
Operations Hub
Enterprise Edition
94%
SLA compliance
2.1k
Active users
18ms
Avg sync
Online
MDM status
SSO Auth (SAML)Active
AES-256 storageActive
Cert-pinned TLSActive

Startup MVP: both stores in 8 to 12 weeks, built to scale.

  • React Native first. Native only when your features demand it. One codebase delivers two store-ready apps. That is 30 to 40 percent faster than building natively. We switch to Swift or Kotlin only when the feature set genuinely requires it.
  • Feature scoping that prevents costly rewrites. A two-week discovery phase locks what ships in the MVP and what comes after launch. Scope creep kills startup timelines. We contain it in a signed document.
  • Backend built in the same sprint cycle. Your app and its backend are designed together. API contracts are agreed before development starts. You never hit a wall because an endpoint does not exist yet.
  • Real data for your investors on launch day. Analytics, crash reporting, and performance monitoring are wired from sprint one. By launch you have numbers to show — not a plan to get them.
  • A clear roadmap for what you build next. Every decision we make in the MVP includes a documented path to the next version. You know what to build next without throwing away what you already shipped.
8 to 12 weeks
MVP to both stores
1 codebase
React Native cross-platform
9:41
🚀
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Built on React Native. iOS and Android. Day one.
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iOS 17+Android 13+
Platform capabilities and technical coverage

Which platform fits the features your mobile app needs?

For most apps, React Native matches native performance at 30 to 40 percent faster time to market. Choose a platform to see the exact toolchain we use.

Swipe the table to compare all platforms →

Capability
React Native
iOS Native
Android Native
Push NotificationsAPNs, FCM, local triggers
Full
Full
Full
Biometric AuthFace ID, Touch ID, fingerprint
Full
Full
Full
In-App PaymentsStoreKit 2, Google Billing v5
Full
Full
Full
Offline SyncSQLite, WatermelonDB, Core Data
Full
Full
Full
AR and CameraARKit, ARCore, Vision API
Partial
Full
Full
Background ProcessingLocation, Bluetooth, jobs
Partial
Full
Full
MDM DeploymentJamf, Intune, Workspace ONE
Full
Full
Full
React Native stack

We use Expo SDK for most builds and the bare workflow when native modules are required. React Native is the right call for 90 percent of product scopes. It matches native performance on UI-heavy apps and gets you to both stores significantly faster.

React Native 0.73+Expo SDK 50TypeScriptZustandReact QueryWatermelonDB
When we recommend native instead
ARKit or ARCore-intensive features
Spatial computing, object recognition, and real-time 3D require direct access to native camera and sensor APIs.
Persistent background processing
Continuous Bluetooth, location tracking, or audio playback when the screen is off requires native system access.
iOS (Swift) stack

We use Swift 5.9 with SwiftUI for new builds and UIKit for apps that need backward compatibility to iOS 14. ARKit, Core ML, and HealthKit integrations use the native SDK directly. We manage the Apple Developer account submission process on your behalf.

Swift 5.9SwiftUIUIKitStoreKit 2ARKitCore Data
App Store approval — our track record
We review Apple's guidelines during the QA phase, not at submission. App Store rejection during our 90-day support window is resolved at no extra cost. Our first-submission approval rate: 100 percent.
Android (Kotlin) stack

We use Kotlin with Jetpack Compose for new builds. We follow Material Design 3 guidelines for Google Play feature promotion eligibility. We manage Play submissions on your behalf, from internal testing through staged production rollout.

Kotlin 1.9Jetpack ComposeMaterial 3Google Billing v5WorkManager
Google Play go-live process
We run internal testing, closed testing, and staged production rollout. We monitor crash rates during the rollout from 10 percent to 100 percent. That is our standard go-live process for every Android build.
Client result: Homes and Lands mobile platform

A React Native real estate app. iOS and Android. Approved on the first submission.

Homes and Lands needed a React Native app that handled property listings, agent profiles, custom document scanning, and payment processing — and had to pass both stores' strict security review.

Client team experiencing their mobile app going live on the App Store for the first time, natural office light
Day one
iOS and Android, shipped simultaneously
Day one
App store approval on first submission
1 codebase
React Native cross-platform architecture
The organization

Homes and Lands is a real estate platform that connects buyers with listings and agents across digital channels. The mobile project brought their property search experience to iOS and Android for the first time.

Real Estate TechConsumer App
The problem

The app needed document scanning, secure payment processing, and agent profile management — all while meeting both Apple's and Google's security and privacy requirements. Any rejection would delay a time-sensitive market launch.

The result
We shipped iOS and Android on the same day using a single React Native codebase.
The custom document scanning feature passed both store reviews without a revision request.
Payment gateway with encryption cleared both stores' security review on first submission.
App Store and Google Play approved on the first attempt.
Consumer app or startup MVP
$40K to $120K
8 to 14 weeks. Submitted to both stores.
Enterprise app
$80K to $250K
12 to 20 weeks. Includes MDM, SSO, and offline-first capability.
Get a line-item proposal
No fixed price until we scope your app
We scope every build individually. You get a line-by-line proposal at no cost. No commitment required. See pricing guide.
Why product teams choose Redefine for mobile app development

Four things that separate agencies that ship from agencies that stall.

Most mobile agencies promise to ship. Far fewer build in the specific steps that prevent store rejections, first-launch churn, and rewrites six months in.

Differentiator 01
We check App Store and Play guidelines before we write a single line of code.

Most rejections trace back to architecture choices made in week one. We run the guidelines against your scope document so compliance is built in from the start. Every app we have submitted to either store has been approved on the first attempt.

See how we scope a build
Differentiator 02
Your backend and mobile app are designed together in the same engagement.

When the backend and mobile app are built by separate teams, the mobile build stalls waiting on APIs that do not exist yet. We design both together. Data contracts are locked before the first sprint, so the build moves at full speed from day one.

See our web and API work
Differentiator 03
We do not pick a platform until we know what your app actually does.

We make the React Native vs. native decision in the discovery phase and document the rationale. Most products work well with React Native. Some need native Swift or Kotlin. We tell you which, and we explain why.

View our engagement models
Differentiator 04
You get 90 days of post-launch support. You keep all the code. Neither is negotiable.

Post-launch is when most mobile projects break down. OS updates trigger compatibility issues. App stores re-review after major iOS or Android releases. Our 90-day window covers all of it. You also receive the full source code and a technical handover document on delivery day.

View support details
Common questions

What founders and CTOs ask us before they start.

A production-ready mobile app typically takes 10 to 16 weeks from a scoped brief to both store submissions. MVP builds run 8 to 12 weeks. The timeline depends on feature complexity, backend integrations, and app store review cycles. You receive a sprint calendar before any work begins.

React Native is right for most products: one codebase, two store-ready apps, 30 to 40 percent faster to market. We recommend native Swift or Kotlin only when the app needs ARKit, on-device machine learning, or persistent background processing that React Native cannot handle. We document the decision with our rationale in the scope brief. See our React Native services.

Yes. We build compliance into the QA phase, not the submission checklist. Apple and Google guidelines are reviewed during architecture. We handle the submission process on your behalf. If a rejection occurs during our 90-day support window, we resolve it at no extra cost.

Yes. We design the API alongside the mobile app so data contracts are agreed before the first sprint. If you have an existing backend, we build against your API. If you do not have one, we build it in the same engagement. See our custom software development services.

We cover 90 days of post-launch support: app store rejections, crash reports, OS compatibility issues, and minor updates. On delivery day, you receive the full source code, a technical handover document, and a recorded walkthrough of the codebase. Your team can maintain and extend the app without depending on us. View our support and maintenance details.

Is this the right engagement for you?

We tell you if we are not the right fit. Before you commit.

Custom mobile app development is the right investment for specific problems. If your problem fits a different solution, we say so in the first call.

📱
Good fit
  • You want a native iOS or Android app — or a React Native product — shipped to the public app stores.
  • Your product needs device features: camera, biometrics, offline sync, push notifications, or in-app payments.
  • You need a backend API built with the mobile app, or integration with an existing system.
  • You want full source code ownership with no vendor lock-in.
  • You have a technical person on your team who can review key decisions during scoping.
🚫
Not a fit
  • You need a mobile-responsive website, not a native app in the stores.
  • Your total budget is under $20,000 for a production-ready, store-submitted app.
  • You want to build on a no-code or low-code platform builder.
  • You need the app live in under six weeks and are not ready to go through a scoping phase first.

Not sure? Tell us what you are building. We will be straight with you.

Book a technical strategy call

Tell us what you are building. We will tell you if we are the right team for it.

We review every brief and respond within 48 hours. No commitment. No sales call until you ask for one.

Form

Submit brief → response within 48 hours → proposal in 3 days → Sprint 1 within one week of sign-off

48 hours
Response time
3 days
Proposal timeline
Day one
App store approval
100%
You own the code
Brief received.

We will review your app description and send a scoped proposal within 3 business days. Check your inbox — you will also get a confirmation now.

Get on a call with us to see how we can help you

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