Home About Services Contact

Custom App Development Company in India — Android, iOS & Cross-Platform

We design and develop custom mobile applications that drive growth. From startup MVPs to enterprise-grade apps — built with React Native, Flutter, Swift, and Kotlin by India's expert app developers.

Get a Free Quote

Our Custom App Development Services

Newetrix Innovations is a leading custom app development company in India. We build scalable, secure, and high-performance mobile applications for businesses of all sizes — from early-stage startups to global enterprises.

Android App Development

Native Android apps built with Kotlin & Java for maximum performance.

  • Native Kotlin/Java development
  • Material Design 3 UI/UX
  • Google Play Store optimization
  • Offline-first architecture
  • Push notifications & analytics

iOS App Development

Premium iOS apps built with Swift for iPhone & iPad.

  • Native Swift development
  • Human Interface Guidelines compliance
  • App Store optimization (ASO)
  • Apple Pay & HealthKit integrations
  • iOS widget & extension development

React Native App Development

Cross-platform apps with React Native — one codebase, both platforms.

  • Single codebase for Android & iOS
  • Near-native performance
  • Code reuse with web (React)
  • Expo & bare workflow support
  • Hot reloading & fast iteration

Flutter App Development

Beautiful, fast cross-platform apps powered by Flutter & Dart.

  • Single codebase for Android, iOS & Web
  • Custom widget-based UI
  • 60fps smooth animations
  • Firebase & Supabase integration
  • Desktop & web deployment

MVP & Startup App Development

Launch fast, validate faster — lean MVPs built for startups.

  • Rapid MVP development (4-8 weeks)
  • Lean feature prioritization
  • User feedback integration
  • Scalable architecture from day one
  • Investor-ready product demos

Enterprise & AI-Powered Apps

Complex, intelligent apps for enterprise needs.

  • AI/ML-powered features
  • Real-time data & WebSocket integration
  • Role-based access & security
  • ERP & CRM integrations
  • Compliance & audit logging

Our Technology Stack

We use modern, proven technologies to build apps that scale.

React Native Flutter Swift Kotlin Java Dart Node.js Python Go Firebase AWS MongoDB PostgreSQL Redis GraphQL REST APIs Docker GitHub Actions Fastlane Figma

Our App Development Process

Discovery & Strategy

We analyze your business goals, target audience, and market landscape to define the app strategy, feature roadmap, and technology stack.

UI/UX Design & Prototyping

Our designers create intuitive wireframes, interactive prototypes, and pixel-perfect UI designs that delight users and drive engagement.

Agile Development

We develop your app in 2-week sprints with regular demos, feedback loops, and transparent progress updates. CI/CD pipelines ensure quality.

Testing & QA

Rigorous testing across devices — unit tests, integration tests, UI tests, performance tests, and security audits before every release.

Launch & Deployment

We handle App Store and Play Store submissions, ASO optimization, and launch strategy to maximize downloads from day one.

Maintenance & Growth

Post-launch support including bug fixes, OS updates, feature enhancements, performance monitoring, and analytics-driven growth.

Industries We Serve

Ecommerce & Retail

Custom shopping apps, marketplace platforms, inventory management, and omnichannel retail solutions.

Fintech & Banking

Secure payment apps, digital wallets, lending platforms, and investment management applications with regulatory compliance.

Healthcare & Wellness

Telemedicine apps, patient management systems, fitness trackers, and health monitoring applications.

On-Demand & Logistics

Ride-hailing, food delivery, courier tracking, and on-demand service marketplace applications.

Education & EdTech

E-learning platforms, course management systems, virtual classrooms, and interactive learning applications.

SaaS & Enterprise

SaaS product development, enterprise mobility solutions, workflow automation, and internal business tools.

Frequently Asked Questions

How much does custom app development cost in India?

Custom app development in India varies based on complexity. A simple MVP starts from ₹1,00,000–₹3,00,000. Medium-complexity apps range from ₹3,00,000–₹10,00,000. Enterprise-grade or AI-powered apps can cost ₹10,00,000–₹50,00,000+. Cross-platform apps (React Native/Flutter) are typically 30-40% cheaper than building separate native apps.

What is the best app development company in India?

Newetrix Innovations is among India's top custom app development companies. We build Android, iOS, React Native, and Flutter apps with deep expertise in AI integration, cloud backends, real-time features, and scalable architecture. We serve clients across India and internationally.

Do you build both Android and iOS apps?

Yes! We build native Android apps (Kotlin/Java), native iOS apps (Swift), and cross-platform apps using React Native and Flutter. Cross-platform development saves 30-40% cost while delivering near-native performance on both platforms.

Can you build an MVP for my startup?

Absolutely. We specialize in rapid MVP development — typically delivered in 4-8 weeks. We help you validate your idea with a lean, functional app, then scale based on user feedback and market response.

What technologies do you use for app development?

React Native, Flutter, Swift, Kotlin, Java for mobile development. Node.js, Python, Go for backends. Firebase, AWS, MongoDB, PostgreSQL for infrastructure. We also integrate AI/ML, real-time features, payment gateways, and third-party APIs.

Do you provide app maintenance after launch?

Yes, we offer ongoing maintenance plans including bug fixes, OS compatibility updates, feature enhancements, performance monitoring, server maintenance, and 24/7 support.

Serving Clients Across India & Worldwide

We build custom mobile apps for businesses in Delhi, Mumbai, Bangalore, Hyderabad, Chennai, Pune, Kolkata, Ahmedabad, Jaipur, Lucknow, Chandigarh, Indore, Bhopal, Nagpur, Surat, Kochi, Noida, Gurgaon, Raipur, Bilaspur, Durg, Korba, and all cities across India. We also serve international clients in the USA, UK, Canada, Australia, Dubai, Singapore, and Europe.