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Mobile App Development Company — iOS, Android & Cross-Platform

Native iOS, native Android, and cross-platform apps for startups and enterprises — built by senior mobile engineers from idea to App Store.

Get a Free App Estimate View Mobile Case Studies
350+
Apps Launched
50M+
End Users Reached
4.6/5
Avg. Store Rating
12+
Years in Mobile
Take off digitally with GreatWorks.

Run smarter, grow faster, and lead the future with advanced technology

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Mobile App Development Companies

Mobile app development companies building native iOS, Android and cross-platform apps with discovery, UX, store launch and growth analytics under one roof.

What We Offer

Our mobile app development companies services cover full-cycle development — from strategy and UI/UX design to development, testing, and deployment — tailored to your industry and business needs.

Dedicated Expert Team

Work with skilled professionals specializing in mobile app development companies. We align our processes for seamless, real-time collaboration with your team.

Proven Delivery

End-to-end mobile app development companies with on-time delivery, transparent processes, and ongoing post-launch support for your business.

Why Choose GreatWorks for Mobile App Development Companies?

GreatWorks brings global expertise, delivering custom mobile app development companies solutions that are scalable, secure, and built for performance. We work with startups and enterprises alike to turn ideas into high-quality digital products.

Agile Development Process
100% Transparent Communication
Dedicated Project Manager
Post-Launch Support & Maintenance

What We Build

iOS App Development

Swift, SwiftUI, iPad, watchOS, App Clips — App Store-ready iOS apps.

Android App Development

Kotlin, Jetpack Compose, Wear OS, Android TV — Play Store-ready.

Cross-Platform (Flutter / RN)

Single codebase shipping to iOS, Android, and web — faster, cheaper.

Backend & API Development

Scalable cloud backends, real-time sync, push notifications, analytics.

Security & Compliance

Biometric auth, encryption, HIPAA/PCI-DSS-ready architecture.

App Maintenance & Growth

OS upgrades, SDK updates, performance tuning, ASO, feature releases.

Our Tech Stack

  • Swift
  • Kotlin
  • Flutter
  • React Native
  • Firebase
  • AWS Amplify
  • Realm
  • GraphQL
  • Stripe
  • OneSignal

Case Studies

Real engagements. Real outcomes. Names withheld under NDA on request.

Food Delivery Quick-Commerce Startup

Challenge

Needed to launch customer, driver, and restaurant apps in a single quarter.

Solution

Three Flutter apps sharing a common SDK, real-time order tracking, Stripe checkout.

Flutter Firebase Stripe Google Maps SDK

Results

  • 3 apps in 13 weeks
  • 120K downloads in 90 days
  • Avg. order placed in under 45s
Healthcare Telemedicine Platform

Challenge

Required Arabic/English, video consults, and e-prescriptions on iOS + Android.

Solution

Native iOS (Swift) + native Android (Kotlin) with shared video SDK and FHIR backend.

Swift Kotlin WebRTC FHIR

Results

  • 10K+ consults/month
  • Cross-region launch in 4 markets
  • Compliance audit passed first time
FinTech Neobank

Challenge

Customers complained the existing hybrid app felt slow and unresponsive.

Solution

Replatformed to native Swift + Kotlin with biometric auth and instant transaction notifications.

Swift Kotlin Firebase Cloud Messaging Plaid

Results

  • App rating up from 3.2★ to 4.7★
  • Cold-start time down 71%
  • Active users up 40% in 6 months

What Clients Say

“Three apps in thirteen weeks. They moved like a startup but built like an enterprise. We're still working with them.”

Omar Z.

“They understood both Arabic-language UX and FHIR compliance. That combination is rare.”

Dr. Noor H.

“The replatform to native moved our App Store rating from 3.2 to 4.7. Best money we've spent on engineering.”

Charlotte W.

Our Process

  1. 1

    Discovery & Strategy

    Define the audience, platforms, business model, and success metrics.

  2. 2

    UX & Visual Design

    Wireframes, interactive prototypes, and a platform-aware visual design system.

  3. 3

    Agile Development

    2-week sprints with weekly TestFlight / Play internal releases.

  4. 4

    QA & Compliance

    Device-lab testing, accessibility audit, security review, store-readiness checks.

  5. 5

    Launch & Growth

    Store submission, ASO, post-launch analytics, performance monitoring.

Industries We Serve

Sector-specific experience delivering Mobile App Development Companies across regulated and high-growth industries.

FinTech Healthcare Food & Delivery Retail & E-commerce Logistics On-Demand Services
We align technology with your vision.

Finding solutions to complex problems in every sector within days, not years.

Emerging technologies.

Initiate emerging tech solutions to shape a smarter, connected, and innovative future.

How we can support you.

Using effective and powerful sector-specific technology, our experts help you attain your goals.

Healthcare
Education
FinTech
Sports and Media
AI solutions
Political
Energy, Oil and Gas
Retail and E-commerce
Travel and Logistics
Headless commerce

Why choose greatworks?

Delivering innovation, efficiency, and reliability to drive your success. Trust our expertise to build smarter, future-ready solutions.

Expert development team.

Our team has years of industry experience and expertise to deliver high-quality results every time.

Innovative solutions.

We leverage the latest tools, technology, and creative strategies to provide innovative solutions that drive results.

Efficient and punctual.

The development was completed efficiently, balancing both financial constraints and time management.

Product focused and Quality assurance.

Innovation and customer satisfaction with a strong commitment to excellence throughout the product lifecycle.

Speed and Growth.

Provide scalability, flexibility, and rapid deployment while maintaining quality, ensuring timely and high-standard delivery.

Let’s your idea into reality!

Here to assist, whenever you’re ready.

Wherever your journey takes you, we’re here to assist. Want more insights? Ready to start? We've got your back.

Let’s chat

Frequently Asked Questions

Should I build native or cross-platform?

If you need maximum performance, deep platform features, or have one platform majority, go native. If you want fastest time-to-market across iOS + Android with one team, Flutter or React Native is the right call. We'll recommend the right path during discovery.

How long does it take to build a mobile app?

MVPs: 10–14 weeks. Full production apps: 16–28 weeks. Replatforms: 12–20 weeks.

What does a mobile app cost?

MVPs typically start at $30K. Mid-complexity apps run $60K–$150K. Enterprise apps with multiple integrations run $150K–$400K+.

Do you handle App Store and Play Store submission?

Yes. We submit, respond to reviewer feedback, and own the process until approval. We also handle store assets, screenshots, and ASO basics.

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