We build apps that scale your business
From concept to App Store. We design, develop, and deploy mobile and web applications powered by AI and cloud-native architecture.
What We Build
Full-spectrum app development
Everything you need to go from idea to launched product, under one roof.
Mobile App Development
Native and cross-platform apps built with React Native and Swift. From consumer apps to enterprise tools.
Web Applications
React, Next.js, and Node.js. SaaS platforms, portals, and PWAs.
AI Integration
Chatbots, recommendation engines, and predictive analytics embedded in your app.
Cloud & Backend
Serverless APIs, databases, auth, and infrastructure that scales automatically.
UI/UX Design
Wireframes, prototypes, and design systems that convert visitors into users.
Maintenance & Support
Bug fixes, performance optimization, updates, and monitoring.
Our Work
Apps we've shipped
AI-powered clinical decision support for medical practices. Lab results interpreter, insurance pre-auth assistant, and real-time clinical dashboard with multi-provider AI failover.
Wholesale ordering platform for retailers. Shopify GraphQL integration, draft orders, approval workflows, and display case rebate program.
Solar sales intelligence platform with property analysis, roof estimation, lead qualification, commission management, and training center.
Latin music artist booking marketplace. Artist profiles, multi-step booking forms, live chat, Stripe payments, and multilingual support.
Why Us
Built from real project experience
Every pattern we use comes from shipping real apps to real users.
Healthcare-grade security
MedCore Systems handles clinical data with multi-provider AI failover, audit trails, and mandatory human oversight for every AI output.
Real Shopify integration
Top Dog Brand's wholesale portal pulls live inventory and pricing via Shopify's GraphQL API — no manual syncing.
AI that actually works
MedCore's lab interpreter achieves 75-85% accuracy with automatic failover between Claude, AWS Bedrock, and Azure OpenAI.
Mobile-first, always
Every app we ship is a PWA with offline capability and sub-2-second load times on mobile networks.
How We Work
From idea to launch in weeks
A battle-tested process that delivers quality apps on time and on budget.
Discovery
We dive deep into your business goals, target users, and technical requirements. Research competitors and define the product roadmap.
Design
Wireframes, prototypes, and pixel-perfect UI design. We iterate with you until every screen feels right.
Develop
Clean, tested code using modern frameworks. Agile sprints with weekly demos so you see progress in real time.
Deploy & Scale
Launch to the App Store, Play Store, or web. We set up CI/CD, monitoring, and scale your infrastructure as you grow.
Our Stack
Built with the best tools in the industry
We pick the right technology for each project to build a foundation that lasts.
ReactReact Native
Next.js
TypeScript
Node.js
Python
AWS
Docker
Tailwind CSS
OpenAI
Stripe
PostgreSQL
Figma
GitHubReactReact NativeNext.jsTypeScriptNode.jsPythonAWSDockerTailwind CSSOpenAIStripePostgreSQLFigmaGitHubGitHubFigmaPostgreSQLStripeOpenAITailwind CSSDockerAWSPythonNode.jsTypeScriptNext.jsReact NativeReactGitHubFigmaPostgreSQLStripeOpenAITailwind CSSDockerAWSPythonNode.jsTypeScriptNext.jsReact NativeReactReady to build your next app?
Tell us about your project. We'll give you an honest assessment, timeline, and quote within 48 hours.
louis@castanedanetworks.com
(213) 522-9136
West Covina, CA