ZENOR BD
iOS & Android Engineering

Native & Cross-Platform Mobile Apps

Transform your mobile vision into intuitive, high-performance applications. We craft smooth native iOS and Android apps with secure cloud backends.

Swift / iOS
Kotlin / Android
React Native
Flutter
What We Deliver

Full Mobile Ecosystem

Native iOS (Swift)

Ultra-smooth iOS apps built in Swift/SwiftUI. Optimized for iPhone and iPad with deep iOS system integration.

  • FaceID & Biometrics
  • Apple Pay & Widgets

Native Android (Kotlin)

High-performance Android applications using Kotlin and Jetpack Compose. Responsive on thousands of device models.

  • Material You Design
  • Background Sync & Push

Cross-Platform (Flutter / React Native)

Write once, launch on both iOS and Android. Save up to 40% development time without sacrificing native performance.

  • Single Codebase
  • Rapid Feature Rollouts

Store Publishing & ASO

Complete management of Apple App Store and Google Play reviews, store listings, screenshots, and App Store Optimization.

  • Developer Guidelines Compliance
  • Beta Testing (TestFlight & Internal Testing)

Mobile UI/UX Design

Intuitive gestures, thumb-friendly navigation, dark mode support, and micro-interactions that keep users engaged.

  • High-Fidelity Prototypes
  • Accessibility & Contrast

Backend APIs & Maintenance

Reliable backend cloud sync, push notification servers, real-time chat, and ongoing compatibility maintenance.

  • Firebase & Custom REST APIs
  • Production SLA Monitoring
Launch on iOS & Android

Ready to build your next mobile app?

Get in touch with our mobile engineering team for a detailed proposal and roadmap.

Frequently Asked Questions

Everything you need to know about specifications, billing, and provisioning.

Should I build a Native app or a Cross-Platform app?

If your application requires hardware-intensive graphics, complex Bluetooth/IoT integrations, or specialized camera pipelines, native Swift (iOS) and Kotlin (Android) are ideal. For standard business, eCommerce, social, and directory apps, Flutter or React Native allows you to build for both platforms simultaneously while cutting development costs and time.

Do you help publish our app to the Apple App Store and Google Play Store?

Yes. We manage the entire store submission process, prepare high-resolution store graphics, verify privacy policies, and resolve any review feedback from Apple or Google.

Can you build the backend API and database for the mobile app?

Yes. We design and host scalable backend cloud APIs using Laravel, Node.js, and PostgreSQL, deployed on our high-speed NVMe server infrastructure.

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