MOBILE APP ENGINEERING

High-Performance Mobile Apps Built for Commercial Scale

We architect native iOS, Android, and cross-platform Flutter applications engineered for rapid user onboarding, real-time synchronization, and mission-critical reliability.

2-Week Agile Sprint Releases 🛡️ 100% Source Code & IP Ownership 🤝 60-Day Post-Launch Hypercare
CORE CAPABILITIES

What We Engineer

Battle-tested architectures engineered from the ground up for seamless app store approvals and smooth 60fps user experiences.

Native iOS & Android Apps

High-fidelity Swift (iOS) and Kotlin (Android) applications designed for maximum hardware utilization, biometric security, and fluid native animations.

  • Apple App Store & Google Play Guidelines
  • FaceID / TouchID & Keychain Storage
  • Low Latency Background Processing

Cross-Platform Flutter Apps

A single, unified codebase delivering pixel-perfect native experiences across iOS and Android, drastically reducing time-to-market and development overhead.

  • 60fps & 120fps UI Performance
  • 50% Faster Feature Iteration
  • Reusable Component Architecture

Real-Time Sync & Offline Mode

Resilient local SQLite/Hive caching paired with WebSockets and background sync so your users can execute actions smoothly even with patchy network connectivity.

  • Offline-First Local Data Stores
  • Instant Push Notifications (FCM / APNs)
  • Conflict-Free Data Synchronization
TECHNOLOGIES WE DEPLOY
Flutter React Native iOS Swift (iOS) Kotlin (Android) Firebase Node.js / Express GraphQL / REST AWS App Runner
HOW WE DELIVER

From Concept to App Store in 4 Sprints

01
Architecture Blueprint

Figma wireframing, user journeys, schema definitions, and third-party API mapping.

02
Agile Code Sprints

Bi-weekly TestFlight and APK releases with demo calls to review progress collaboratively.

03
Rigorous Device QA

Automated stress testing, battery consumption checks, and memory leak profiling.

04
Launch & Hypercare

Store submissions, rollout monitoring, and 60 days of complimentary stabilization.

FREQUENTLY ASKED QUESTIONS

Common Questions About Mobile App Engineering

Do I own the full mobile app source code?

Yes, 100%. Upon completion and invoice settlement, all repository code, credentials, and app store listings belong entirely to your company.

How do you handle App Store and Play Store rejections?

We manage the submission end-to-end and guarantee compliance with Apple's App Review Guidelines and Google Play policies until approved.

Should I build Native (Swift/Kotlin) or Cross-Platform (Flutter)?

For 90% of business applications, Flutter provides 100% native performance while saving 40-50% in engineering budget. We help you choose on our discovery call.

Do you provide post-launch support?

Yes. Every launch includes 60 days of free hypercare support, followed by flexible monthly retainers for OS upgrades and feature additions.

READY TO BUILD?

Let's Engineer Your Mobile Application

Partner with Websirg to build high-concurrency mobile products that outpace the competition.