Custom app development in New York.
We build custom software completely crafted to match your business — mobile apps, web platforms, enterprise backends. iOS, Android, web, cloud. Any platform, any language, any environment. Secured from the first commit.
Certifications & Partnerships
Custom software built around how your business actually works.
Off-the-shelf software forces you to change how you operate. Custom software is built around your workflows, your team, and your goals — and it evolves as you do. That's what we build.
Think of it this way: most businesses outgrow generic tools — they end up paying for features they don't need, missing ones they do, and duct-taping systems together with integrations that break. Custom software removes that friction entirely. You get exactly what you need, built the way you work.
Whether you need a consumer-facing mobile app, an internal operations platform, or a complex API powering enterprise systems, CGCG takes you from concept to production. We're not just developers — we're a security-first engineering team that understands business as well as code.
Mobile + Native.
iOS (Swift), Android (Kotlin), Flutter, React Native — we build for the platforms your users are on, natively or cross-platform depending on what your product actually needs.
Web + Cloud.
Modern web applications built on React, Next.js, Node, Python, and more — deployed on AWS, GCP, or Azure. Scalable from day one, with security baked into every layer.
Enterprise Software.
Complex internal systems, ERP integrations, data pipelines, and compliance-ready applications for regulated industries. We've built for healthcare, finance, legal, and construction.
From brief to launch — deliberately.
Our software development process is transparent and milestone-driven. You know exactly what's happening at every stage — no black box, no surprises.
Discovery
We map your requirements, technical constraints, and business goals into a concrete specification. No surprises downstream.
Architecture
System architecture, data models, and UI/UX designed before a single line of code is written. Security and scalability are designed in — not retrofitted.
Development
Agile sprints with regular demos and client updates. Automated testing, code review, and security scanning at every merge.
QA + Testing
User acceptance testing, performance benchmarking, security review, and device/browser matrix testing before any launch.
Deploy + Support
CI/CD pipeline, cloud provisioning, app store submission, and post-launch monitoring. We stay on for updates, fixes, and iterations.
Security is part of every sprint, not an afterthought.
Most development shops build first and think about security later — if at all. Our team has a cybersecurity background that runs through every project. Secure coding reviews, dependency scanning, and threat modeling happen throughout development, not at the end.
You get software that's not just functional, but hardened. That matters even more if you operate in a regulated industry or handle sensitive user data.
"We don't disappear after launch. Post-deployment monitoring, updates, and feature iterations are part of how we work — not sold as expensive add-ons after the fact."
Every layer of your product, end to end.
From native mobile apps to complex enterprise backends — we design, build, test, and deploy software across every platform your business needs.
iOS + Android
Native and cross-platform mobile built to App Store standards.
Swift, Kotlin, Flutter, and React Native. We recommend the right approach based on your users, timeline, and budget — and we submit, manage, and maintain your app store presence.
- iOS (Swift)
- Android (Kotlin)
- Flutter
- React Native
Web + SaaS
High-performance web apps and cloud-native SaaS products.
React, Next.js, Vue, Angular, Node.js, Django, and more. We build responsive, performant web applications with the right stack for your scale — from MVP to enterprise-grade platform.
- React / Next.js
- Node.js
- Django
- REST + GraphQL
Enterprise Software
Internal tools, operations platforms, and ERP integrations.
Custom portals, workflow automation, ERP integrations, and data management systems. If your business has a complex process that off-the-shelf software can't handle, that's exactly the problem we solve.
- Custom Portals
- ERP Integration
- Workflow Automation
API + Backend
Scalable APIs and backend infrastructure that power your product.
RESTful and GraphQL APIs, microservices architecture, gRPC, and database design. We build backends that scale with your product — and document every integration before a line of code is written.
- REST / GraphQL
- Microservices
- PostgreSQL / MongoDB
DevOps + CI/CD
Automated pipelines that ship faster without cutting corners.
Docker, Kubernetes, AWS, GCP, Azure — we build the infrastructure, set up the CI/CD pipeline, and configure monitoring so your team can deploy with confidence on day one and every day after.
- Docker / K8s
- GitHub Actions
- AWS · GCP · Azure
Maintenance + Support
Post-launch partnership for the life of your product.
Ongoing bug fixes, performance monitoring, OS and dependency updates, feature iterations, and security patching. We don't disappear after go-live — we stay on as your engineering partner.
- Performance Monitoring
- Security Patching
- Feature Iteration
App development at CGCG includes more than you'd expect.
Our clients often find we do significantly more than a traditional development shop. You're not just getting code — you're getting a partner who thinks about your product, your users, and your business.
UI/UX design included
We don't just build what you wireframe — we design the full user experience. Prototypes, interaction flows, and visual design are part of every project, not an add-on.
Compliance-aware from day one
Building for healthcare, finance, or legal? We understand HIPAA, PCI-DSS, SOC 2, and FERPA before the architecture phase begins. Compliance is designed in, not bolted on.
Transparent milestone billing
No open-ended retainers. We scope projects clearly, bill by milestone, and give you a working deliverable at every stage — so you're never paying for work you can't see.
Integration with your existing stack
We document and design integrations with your CRM, ERP, data infrastructure, or third-party APIs before development starts. No surprises mid-sprint when connections don't work as expected.
Post-launch you're never alone
Ongoing maintenance, OS updates, security patches, performance monitoring, and feature releases. We become a long-term partner — not a shop that hands off and moves on.
Built for regulated and complex environments.
We've shipped production software for healthcare providers, law firms, financial services companies, construction firms, and education platforms. We understand compliance requirements and operational workflows before we write a single line of code.
Healthcare
HIPAA-compliant apps, patient portals, clinical workflow software, and EHR integrations. Data security is non-negotiable here.
Finance
High-availability fintech platforms, PCI-DSS-ready payment flows, and reporting tools for fast-moving financial operations.
Legal
Matter management portals, document automation, and secure client communication tools. Confidentiality and audit trails are built in.
Construction
Field-ready mobile apps, project management tools, document access on-site, and subcontractor coordination platforms.
Education
FERPA-compliant learning platforms, student portals, administrative tools, and custom LMS integrations for schools and universities.
Hospitality
Guest-facing mobile apps, reservation and POS integrations, loyalty platforms, and back-of-house operations software.
Not just a dev shop. An engineering partner.
Four things our clients tell us make CGCG different from every other development company they've worked with.
Security by design.
Our team has a cybersecurity background most development agencies simply don't have. Every project includes secure code review, dependency scanning, and threat modeling — built into every sprint, not tacked on at the end.
One team, end to end.
Discovery, architecture, design, development, QA, deployment, and post-launch support — one accountable team handles all of it. No handoffs between agencies. No finger-pointing between vendors.
Lean scope, honest estimates.
We build what you actually need — not a bloated scope designed to maximize our hours. Transparent estimates, milestone-based delivery, and clear deliverables at every phase keep projects on track and on budget.
We stay after launch.
Post-launch monitoring, bug fixes, OS updates, performance tuning, and feature releases are part of how we work. We prefer long-term partnerships over one-time projects — because software always needs to grow.
Ready to build software your business can rely on?
Let's start with a free, no-obligation discovery call. We'll map your requirements, walk through the right technical approach, and give you a clear picture of scope and timeline — before you commit to anything.