Production iOS & Android App Engineering for US Startups
Build high-performance mobile applications that scale gracefully to millions of American users. Mr Umer Malik engineers rock-solid iOS and Android applications utilizing native Swift and Kotlin engines or compiled cross-platform architectures—delivered with rapid sprint momentum under Delaware mutual NDA.
Core Capabilities & Production Deliverables
Direct architectural execution by senior engineer Mr Umer Malik with zero agency dilution.
Swift & SwiftUI iOS Architecture
High-fidelity iOS applications crafted with modern Swift and declarative SwiftUI, adhering to Apple Human Interface Guidelines and iOS 18 features.
Modern Kotlin & Jetpack Compose
Responsive Android applications built with Kotlin coroutines and Jetpack Compose for smooth, native 120Hz scrolling on diverse American devices.
Biometric Authentication & Keychain
Hardware-backed Face ID and Touch ID security layers paired with encrypted local Keychain storage protecting sensitive user sessions.
Offline-First SQLite & Realm Sync
Robust local SQLite and Realm database synchronization allowing users to perform core app actions seamlessly with zero cellular connectivity.
Apple Pay & Google Pay Native Checkout
Frictionless single-tap in-app purchases, recurring subscription tiers, and Stripe payment processing tailored for US consumers.
App Store & Google Play Launch Management
Complete handling of Apple App Store and Google Play compliance review checklists, privacy declarations, and phased rollouts.
Why US Founders Choose Direct Mobile Engineering
Traditional mobile agencies charge $150,000+ and assign junior contractors. Here is the direct alternative.
Rapid Sprint Development Velocity
Testable TestFlight and internal Android builds delivered weekly throughout the development cycle.
Delaware Mutual NDA Protection
Strict intellectual property assignment ensuring full ownership of all native repositories and mobile assets.
Synchronized US Daytime Collaboration
Real-time Slack communication and sprint demo calls aligned with your business hours.
Predictable Fixed Milestone Pricing
Clear scope and fixed-price stages in USD with zero surprise hourly overages.
Phased Delivery Roadmap & How This Project Runs
Structured from initial discovery call to production deployment and 100% intellectual property transfer.
Phase 01: Mobile Architecture & Wireframe Scoping
Defining app screens, database models, and API contracts with fixed milestone quotes in USD.
Phase 02: Core Navigation & Authentication Sprints
Building the primary navigation shell, biometric auth, and private staging builds for TestFlight.
Phase 03: Feature Engineering & Offline Sync
Developing primary business workflows, SQLite local caching, and payment integration.
Phase 04: Store Submission & Codebase Handover
Managing App Store/Google Play approvals, delivering complete Git source repositories, and 30-day warranty.
US Founder Frequently Asked Questions
Clear answers on US business hours alignment, USD milestone billing, and Delaware mutual NDA protection.
Do you build native or cross-platform mobile apps? ▼
How do you distribute beta versions during development? ▼
Who owns the App Store and Google Play developer accounts? ▼
How is user data protected within the mobile app? ▼
Can the app handle subscriptions and in-app payments? ▼
What warranty is included after app store launch? ▼
Great dreams deserve craftsmanship, not compromises. Let’s build yours.
US METROS & STATES ACTIVELY SERVED
© 2026 UMER XPERT. SERVING THE UNITED STATES — COAST TO COAST. All rights reserved. Contracts executed under Delaware mutual NDA.