We Build Apps & Websites
That Grow Your Business

From Android and iOS apps to full-stack web platforms and WordPress & SEO, we craft digital products that perform, scale, and convert.

Android App
Web Platform
SEO Growth
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App, Web & WordPress Development Services in Kolkata

Belonix Infotech is a trusted app, web, and WordPress development company in Kolkata, West Bengal, offering scalable and high-performance digital solutions for businesses worldwide.

Clean Code Maintainable & scalable architecture
Fast Delivery On-time, every time
Scalable Solutions Built to grow with your business
Client-Focused Your vision, our mission
What We Do

Services Built for Real Growth

We deliver end-to-end digital solutions tailored to your business goals.

Android App Development

Native and hybrid Android apps built for performance, security, and seamless user experience across all devices.

KotlinJavaFlutterFirebase
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Web Development

Full-stack web applications with modern frameworks — fast, responsive, and built to convert visitors into customers.

ReactNext.jsNode.jsMongoDB
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WordPress & SEO

Custom WordPress sites with on-page SEO, speed optimization, and content strategy to dominate search rankings.

WordPressWooCommerceSEOAnalytics
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Backend & API Development

Robust, secure REST and GraphQL APIs. Microservices architecture that scales effortlessly with your traffic.

Node.jsPythonAWSDocker
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UI/UX Design

User research, wireframes, and pixel-perfect designs that delight users and drive measurable engagement.

FigmaAdobe XDPrototypingResearch
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Have a project idea?

Let's discuss your vision and turn it into reality. Free consultation, no strings attached.

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Our Work

Projects That Speak for Themselves

A selection of products we've designed, built, and launched.

Android App

ShopEase – E-Commerce App

A feature-rich Android shopping app with real-time inventory, payment gateway, and push notifications for 10k+ users.

View Case Study
Web Platform

TalentBridge – HR SaaS

A full-stack HR management platform with applicant tracking, payroll, and team analytics built on React & Node.js.

View Case Study
WordPress + SEO

LegalEdge – Law Firm Site

Custom WordPress site with schema markup, on-page SEO, and speed optimization — grew organic traffic by 3x in 90 days.

View Case Study
Flutter App

MedPulse – Health Tracker

A cross-platform Flutter app for medication reminders, vitals tracking, and doctor appointment management.

View Case Study
Backend API

PayStream – Payment API

High-throughput payment processing API handling 100k+ transactions/day with fraud detection and real-time reporting.

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UI/UX Design

Edify – EdTech Dashboard

Complete UI/UX overhaul for an online learning platform — increased course completion rates by 40% post-launch.

View Case Study
How We Work

Our 4-Step Process

A proven workflow that ensures quality, clarity, and on-time delivery.

01

Requirement Analysis

We deep-dive into your goals, audience, and constraints to define a clear project scope and roadmap.

02

UI/UX Design

Wireframes and high-fidelity prototypes reviewed with you before a single line of code is written.

03

Development

Agile sprints with regular demos. Clean, tested code with full documentation and version control.

04

Delivery & Support

Smooth deployment, handover training, and ongoing support to keep your product running at its best.

Technologies

Our Tech Stack

We use battle-tested, modern tools to build fast and reliable products.

Android
React
Node.js
FlutterFlutter
AWS
MongoDBMongoDB
Docker
PythonPython
WordPress
FigmaFigma
FirebaseFirebase
Next.jsNext.js
Client Love

What Clients Say About Us

★★★★★

"Belonix delivered our Android app 2 weeks ahead of schedule with zero bugs in production. Outstanding team!"

RK
Rahul K.Founder, ShopEase
★★★★★

"Our organic traffic tripled in 3 months after Belonix rebuilt our site and implemented their SEO strategy. Incredible ROI."

SA
Sneha A.Marketing Head, LegalEdge
★★★★★

"They understood our vision instantly. The UI/UX they designed turned our cluttered dashboard into something users actually love."

AM
Arjun M.CTO, TalentBridge
Get in Touch

Let's Build Your Next Project

Tell us about your idea — we'll get back within 24 hours with a free proposal.

India · Remote Worldwide