Web & Mobile App Development
We build robust, scalable, and user-centric web and mobile applications that serve as integral parts of connected systems. From IoT dashboards and real-time analytics to consumer-facing apps and internal tools, our full-stack development services combine modern frameworks, clean UI/UX design, and secure cloud integration. Whether you’re launching a standalone SaaS product or a companion app for a hardware device, we deliver responsive, high-performance applications tailored to your business and technical goals.
KEY HIGHLIGHTS
Cross-Platform Mobile App Development
High-quality native-like apps using Flutter and React Native, built for iOS and Android from a single codebase. We implement BLE/Wi-Fi device communication, push notifications, OTA management, and offline syncing.
Responsive Web Applications
Feature-rich frontends using React, Vue, Angular, or SvelteKit, tailored for control panels, dashboards, portals, and progressive web apps (PWAs). Fully responsive designs optimized for desktop, tablet, and mobile.
Real-Time Data Visualization & Control
Live dashboards with telemetry streaming, device control, and dynamic charting using WebSocket, MQTT over Web, or GraphQL subscriptions. Perfect for IoT platforms, analytics portals, and industrial UIs.
Backend Architecture & APIs
Scalable, cloud-native backend systems using Node.js, NestJS, Fastify, Django, or Go. We build secure RESTful APIs, GraphQL endpoints, and event-driven microservices for high-performance data processing.
Cloud & DevOps Integration
Deployment pipelines with Docker, Kubernetes, and CI/CD on platforms like AWS, Google Cloud, Azure, Vercel, and Netlify. We implement auto-scaling, serverless functions, and load balancing for reliability.
Authentication & User Management
End-to-end security implementation using OAuth2, JWT, Clerk, or Auth0. Includes account verification, RBAC (Role-Based Access Control), password resets, session tracking, and audit logging.
Hardware-Integrated Apps
Companion apps that interact with physical devices over Bluetooth, Wi-Fi, NFC, or serial protocols. Includes custom UI for device configuration, monitoring, firmware updates, and over-the-air provisioning.
WEB & MOBILE APP DEVELOPMENT CAPABILITIES
Frontend: React, Vue, Angular, Svelte, SvelteKit, Tailwind CSS, Redux Toolkit, Chart.js, D3.js
Backend: Node.js, NestJS, Fastify, Django, Go, Express, Python, Flask, Laravel
Mobile: Flutter, React Native, Kotlin Multiplatform, Expo, native Android/iOS (Swift/Kotlin)
Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, GitHub Actions, Vercel, Netlify
Databases: PostgreSQL, MongoDB, Firebase, Firestore, Supabase, PlanetScale, Redis
APIs & Protocols: REST, GraphQL, WebSocket, MQTT, gRPC
Auth & Security: Auth0, Clerk, Firebase Auth, OAuth2, OpenID Connect, JWT
Payments & Services: Stripe, PayPal, Twilio, SendGrid, Firebase Cloud Messaging
USE CASES
- •IoT dashboards with telemetry monitoring and device management
- •Mobile companion apps for configuring, controlling, or updating embedded devices
- •Custom CRM systems, internal dashboards, and admin portals
- •Real-time data visualization for industrial or environmental monitoring
- •SaaS platforms with user subscriptions, payment integration, and cloud analytics
- •Field apps for logistics, agriculture, healthcare, or asset tracking
Client Success
Don't Take Our Word For It, Read Our Client Success Stories
ZyntelliTech exceeded our expectations in delivering a custom firmware solution for our IoT distance measurement device. Their team expertly developed firmware on the Nordic nRF9160 platform, integrating a Time-of-Flight (ToF) sensor to measure distance with high precision and consistency. In addition to accurate sensor integration, ZyntelliTech implemented GPS functionality and designed a reliable data pipeline to transmit real-time sensor readings and location data to our AWS cloud infrastructure. Their deep understanding of LTE-M/NB-IoT communication, MQTT protocols, and cloud connectivity enabled seamless, low-latency performance across our system. Throughout the project, ZyntelliTech demonstrated excellent technical skills, clear communication, and a proactive approach to problem-solving. Their firmware was well-structured, power-optimized, and thoroughly documented—making it easy to scale and maintain. We highly recommend them as a development partner for any IoT, cloud-connected, or sensor-driven project.
Hunter Raley, CEO
We partnered with ZyntelliTech Development LLC to develop a custom IoT solution based on the ESP32-S3 platform—and the results were exceptional. Their team engineered a reliable, low-power controller that captures real-time UV sensor data and seamlessly transmits it to our AWS cloud infrastructure. ZyntelliTech handled every layer of the system: from embedded firmware with OTA update capabilities and AWS IoT Core fleet provisioning, to full mobile app development using Flutter. The mobile apps allow users to monitor and manage devices effortlessly, with real-time data visualization and secure device onboarding. Their ability to deliver a tightly integrated solution—from hardware to cloud to mobile—was exactly what we needed. The firmware was efficient, the cloud communication was rock-solid, and the apps were beautifully designed and intuitive. ZyntelliTech proved to be a reliable and forward-thinking development partner, and we highly recommend them for any end-to-end IoT project.
Charles Rigby, CEO
ZyntelliTech Development LLC delivered a complete RF control solution for our vehicle system, handling both hardware and firmware development with precision and professionalism. Their team designed custom electronic boards for the RF transmitter and receiver modules, ensuring reliable long-range communication and signal integrity under demanding conditions. In addition to hardware design, ZyntelliTech developed embedded firmware optimized for responsive control, robust pairing, and interference resistance. The system performed flawlessly in field tests, demonstrating the team's deep understanding of RF communication protocols and automotive-grade reliability. This project showcased ZyntelliTech’s end-to-end capability—from schematic and PCB design to low-level embedded programming and RF performance tuning. We highly recommend them for any project requiring custom wireless control systems or vehicle integration.
Dennis Chim, Co-Founder
ZyntelliTech Development LLC played a pivotal role in the successful development of our advanced wireless sensor system. The team engineered a scalable solution using Nordic’s nRF52 series for BLE mesh networking and the nRF9160 as a cellular gateway, seamlessly connecting edge devices to our AWS cloud infrastructure. ZyntelliTech provided full-stack services—including custom PCB design, low-power firmware development, and end-to-end AWS integration. Their implementation of a robust BLE mesh network enabled reliable, long-range communication between sensor nodes, while the nRF9160 gateway ensured real-time data transmission over LTE-M with secure cloud connectivity. In addition to the technical architecture, they managed prototype manufacturing and hardware validation, delivering a complete, production-ready system. Their deep expertise in embedded systems, wireless communication, and cloud-connected IoT made them an invaluable partner. We highly recommend ZyntelliTech for complex IoT product development and deployment.