Physical device
Xiaomi Note 10
Real-device Android and Flutter validation for permissions, camera flows, notifications, and performance.
AndroidFlutterCameraPush
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Portfolio
Apps in Progress
Currently building thoughtful applications that solve real problems and create meaningful experiences.
Published
My Live Apps
Published apps available now on the App Store and Google Play.
Portfolio
Client Projects
Production-ready applications built and shipped for clients worldwide.
Services
What I Can Build For You
End-to-end mobile and spatial development from concept to App Store.
AI-Powered Apps
Custom AI integrations using Claude, Gemini, and Codex. From smart assistants to image generation and intelligent recommendations.
Mobile Development
Native Apple Platforms (Swift/SwiftUI) and cross-platform (Flutter) apps with polished UI, smooth animations, and production-ready architecture.
Spatial Computing
Immersive experiences for Apple Vision Pro, Meta Quest, and AndroidXR using RealityKit, Unity, and visionOS frameworks.
Payment Integration
Seamless integration of Amazon Payfort, Stripe, Apple Pay, Google Pay, RevenueCat subscriptions, and in-app purchases.
Backend & Cloud
Firebase, Cloud Functions, Firestore, Auth, Storage, Push Notifications full serverless backend setup and deployment.
Technical Consulting
Architecture reviews, code audits, performance optimization, and App Store submission guidance for existing projects.
Tech Stack
Technologies I Work With
Battle-tested tools and frameworks for every layer of your product.
Swift
SwiftUI
Flutter
Kotlin
Dart
Firebase
Firestore
Cloud Functions
visionOS
RealityKit
Unity
OpenAI
Claude
Gemini
RevenueCat
Stripe
Amazon Payfort
Apple Pay
Google Pay
REST APIs
GraphQL
n8n
Git
CI/CD
Workspace
My Workspace & Testing Lab
A focused setup for building, testing, and refining mobile, cloud-connected, and spatial experiences across Apple, Android, and Meta platforms.
Main development setup
MacBook Pro 16″
My primary environment for architecture, production builds, client delivery, and simulator-based testing across Apple platforms.
M1 Max64 GB unified memory1 TB SSD
XcodeSwiftUIFlutterFirebaseSupabaseVS Code
Physical device
Meta Quest 3S · 256 GB
On-device spatial prototyping for interaction, comfort, immersion, and performance checks.
Horizon OSSpatial UXPerformance
Simulator lab
Apple Platform Simulators
Simulator-based layout and interaction testing across iOS, iPadOS, watchOS, tvOS, and visionOS.
iOSiPadOSwatchOStvOSvisionOS
Supporting gear
Samsung 28″ 4K
Primary 4K workspace
Samsung 27″
Secondary reference display
Keychron K8
Wireless mechanical keyboard
Logitech MX Master 2S
Precision productivity mouse
Gaming Chair
Comfort for long build sessions
Need a mobile or spatial app built with real testing in mind?
Let’s Work TogetherTestimonials
What Clients Say
Trusted by teams and founders across multiple industries.
“Hamza and his team built the entire Dealyno e-commerce app from the ground up. They implemented Amazon Payfort, Apple Pay, Google Pay, Stripe, and PayPal all working flawlessly. The payment flow is smooth and our customers love the experience.”
Zouhair
CEO, Dealyno
“We worked with Hamza and his team on two projects Five5Sport and a School communication app. Both were delivered with a beautiful UI, smooth logic integration, and real attention to detail. Truly professional from start to finish.”
Abdeljalil A.
Founder, Five5Sport & School App
“We trusted Hamza and his team with both the Kleazy marketplace and the ÖTZI app. Each one was crafted with a polished interface, smooth user experience, and reliable backend. They deliver on time and the quality speaks for itself.”
KLEAZY
Founder, Kleazy & Ă–TZI
“Hamza and his team delivered DOMICILIX and DOMICILIX Pro apps connecting elderly individuals with qualified caregivers. The UI is beautiful, the logic integration is seamless, and the whole platform runs smoothly. Highly recommended.”
DOMICILIX
Founder, DOMICILIX
“We've worked with Hamza and his team on 9 apps over the years across multiple platforms. Their ability to consistently deliver polished, high-quality products project after project is what sets them apart. A reliable long-term partner we truly trust.”
3WM
Company, 3W Media
About DEVHCH
Crafting thoughtful mobile & spatial experiences
Passionate about learning, building, and creating apps that genuinely help people.
With over 6 years of experience in mobile development, I specialize in building intuitive applications for Android, iOS, and the emerging world of spatial computing.
From Flutter to Swift, Kotlin to visionOS – I'm constantly exploring new technologies to create experiences that make a real difference in people's lives.
8+
Years Experience
2018
Since
Spatial
Computing