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Mobile App Development

Apps people love to use, and keep coming back to.

iOS and Android apps for growing US businesses, designed to turn first-time users into repeat customers, built for speed and tracked from the first install to the repeat purchase.

  • iOS & Android
  • Store-ready
  • Analytics built in
Flutter
React Native
Kotlin
Firebase
Android
iOS
Figma
Stripe
Google Play
App Store
HubSpot
What we deliver

Everything your app needs to grow, under one roof.

No templates dressed up as custom work. Every app is planned, designed and built around one job: getting users to value fast, and keeping them there.

Android App Development

Native Android apps built in Kotlin and Jetpack Compose, designed to run smoothly across the wide range of Android phones and tablets your customers carry.

  • Kotlin and Jetpack Compose
  • Material Design interfaces
  • Tested across devices and screens
  • Google Play launch and updates
Explore Android apps

iOS App Development

Polished iPhone and iPad apps built in Swift and SwiftUI, following Apple’s design guidelines so your app feels native and passes App Store review smoothly.

  • Swift and SwiftUI
  • Apple Human Interface design
  • Apple Pay, Face ID and widgets
  • TestFlight and App Store launch
Explore iOS apps

Cross-Platform App Development

One shared codebase in Flutter or React Native that launches on both iOS and Android, so you reach every customer faster and maintain less code.

  • Flutter or React Native
  • One codebase, two app stores
  • Native look on every device
  • Faster launch, lower upkeep
Explore cross-platform apps
How we work

From first idea to a live app, step by step.

A clear process with something tangible at every stage, so you always know what's done and what's next.

Step 01 / 05

Discover

Goals, users, competitors and the features that matter most for version one.

You getProduct brief & roadmap
Step 02 / 05

Prototype

Screen flows and a tappable prototype, planned around one core action per screen.

You getClickable prototype
Step 03 / 05

Design

On-brand interface for iOS and Android, with real device previews and your feedback.

You getFull app designs
Step 04 / 05

Build & test

Clean development, API and analytics setup, performance tuning and real-device QA.

You getBeta build to test
Step 05 / 05

Launch & grow

Store submission handled, then updates and monthly improvements to lift retention.

You getLive app + reporting

Most MVP apps launch in 8 to 12 weeks. Complex apps and custom backends are scoped individually.

Plan my app with Marfa
Key outcomes

An app you can measure, not just admire.

Every Marfa build is held to the same standards for speed, stability and tracking, and checked against them before it goes live.

Every launch includes
  • App Store & Play Store submission
  • Crash reporting & monitoring
  • Secure login & data protection
  • Analytics & event tracking
  • Push notification setup
  • Accessibility pass
  • Real-device QA
  • Source code handover
Get my app plan
<2.0s

App launch time target on mid-range phones

Cold start
99.9%

Crash-free sessions goal for every release

Crash reporting
100%

Sign-ups, key taps and purchases tracked to their source

In-app analytics
60fps

Smooth, responsive screens on supported devices

Performance target
FAQ

Questions before you build?

Straight answers to the things business owners usually want to know before starting.

Talk to an app developer
"A good app isn't finished at launch. That's when users decide whether to stay."

Most MVP apps launch in 8 to 12 weeks. Larger apps with custom backends take longer. You get a clear, week-by-week timeline before any work begins.

It depends on features, platforms and integrations. After a short discovery call we send a fixed, itemized quote, so you know the full cost before development starts.

Cross-platform (Flutter or React Native) suits most business apps: one codebase, faster launch, lower upkeep. Native Swift and Kotlin is best for heavy graphics or device-specific features. We recommend what fits your goals and budget.

Yes. We prepare the listings, screenshots and privacy details, submit to both stores and handle any review feedback until the app is live.

You do. At launch you receive the full source code, design files and every account login. No lock-in.

Yes. We connect apps to your website, CRM, booking system, Stripe or Apple and Google Pay, and analytics, so every sign-up and sale is tracked.

Our App Care Plan covers OS updates, bug fixes, monitoring and monthly improvements based on real usage data, so the app keeps getting better.

Yes. We start with an audit of performance, reviews and analytics, then recommend whether to improve the current app or rebuild it.

Your app is your always-open storefront

Ready for an app your customers keep using?

Book a free app consultation. We'll review your idea, recommend the right approach and outline exactly what to build first, so your app brings in repeat business from day one.

  • Free app consultation & roadmap
  • We reply within one business day
  • Your idea stays private (NDA on request)

Build your app with Marfa.

Or talk to Marfa

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