Web & App Development Company in Kolkata
Kolkata's business community — trading houses, manufacturers, hospitals, and a rising startup scene around Salt Lake Sector V — increasingly competes online. TechAppDev gives Kolkata businesses the web and app engineering that East India's market has historically had to source from Bangalore or Delhi.
We build e-commerce for the city's retail brands, patient-facing platforms for its hospitals, and modern web presences for its century-old firms making the digital leap — at pricing that makes sense for the eastern market.
What We Build for Kolkata Businesses
Full-stack design, development, and growth — one team for everything digital.
Website Development
High-performance websites, landing pages, and e-commerce with Next.js & React.
Mobile App Development
Native & cross-platform apps from consumer to enterprise-grade solutions.
Digital Marketing
SEO, paid ads, social media strategy driving measurable ROI for your business.
Agentic AI Solutions
Autonomous AI agents, MCP workflows, voice AI, and intelligent automation.
SaaS Product Development
End-to-end SaaS platforms with billing, dashboards, analytics, and multi-tenancy.
Cloud & DevOps
AWS/GCP infrastructure, CI/CD pipelines, Docker/K8s, and serverless architectures.
UI/UX Design
Research-driven design systems, wireframing, prototyping, and accessibility audits.
Conversion Rate Optimization
A/B testing, heatmaps, funnel optimization, and data-driven growth strategy.
Enterprise Software Development
Custom ERP, CRM, internal tools, and system integrations built for scale.
E-commerce Development
Custom online stores, Shopify & WooCommerce builds that convert visitors into orders.
Industries We Serve in Kolkata
Frequently Asked Questions — Kolkata
Do you work with traditional family businesses going digital?
Very often. We handle everything — domain, hosting, content, photography guidance, and training your team to manage the site — so going digital doesn't require in-house IT staff.
What does an e-commerce website cost in Kolkata?
Complete e-commerce stores start at ₹75,000 including payment gateway, inventory management, and delivery-partner integration. B2B ordering portals are quoted per scope.
Can you build Bengali-language websites?
Yes — fully bilingual Bengali-English sites with correct typography and SEO for both languages.
How do we communicate during the project?
A dedicated project manager, weekly video demos, and WhatsApp support for quick queries. You always know exactly where your project stands.
Ready to grow your Kolkata business online?
Tell us about your project and get a free strategy proposal within 24 hours — no obligation, no sales pressure.