Discovery
Remote video workshops in IST (your office in Salt Lake Sector V / New Town Action Area II / Park Street / Camac Street). 1–2 weeks to map your user, business model and success metric.
Mobile app development · Kolkata
Mobile app development company in Kolkata.
eCorpIT builds for Kolkata's BFSI groups, IT services delivery centres, manufacturing and engineering companies, and education and healthcare institutions — from our CMMI Level 5 engineering office in NCR. iOS, Android, Flutter and React Native, AI-native through Apple Intelligence, Google Gemini and on-device ML. AWS, Microsoft, Google and Shopify partners.
Got it — we'll be in touch within 24 hours.
A senior architect will reply from contact@ecorpit.com with scope, an indicative price, and a timeline.
Reference —
- 5.0 Google rating · 59 reviewers
- CMMI L5 Highest development-maturity appraisal
- 14 days Contract to engineering on your project
- CMMI Level 5
- MSME Certified
- AWS
- Microsoft
- Shopify
- Kaspersky
Trusted by
Real client work, delivered from Gurugram.
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Indian Golf Union Sports governance -
Global Banking & Finance Review Finance media -
Multi Solar Energy -
Hyderabad School of Banking & Finance Education -
RN Sports Marketing Sports -
Exora Wealth Wealth management -
Reagan Medical Center Healthcare -
Candila Education Education -
Multi Infrastructure & Engineering Infrastructure -
TrustingMinds Mental health -
Furrvana Pet Clinic Pet care -
CDOT Public sector
Named clients shown with permission. Select healthcare, education and enterprise engagements remain confidential under NDA.
What we build
What we build for Kolkata clients.
Pick the platform you already know you need — or tell us the problem and we will recommend one.
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Native iOS apps
Native iOS apps in Swift and SwiftUI.
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Native Android apps
Native Android apps in Kotlin and Jetpack Compose.
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Cross-platform apps
Cross-platform apps in Flutter or React Native.
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AI-powered mobile apps
AI-powered mobile apps with on-device ML, RAG and Apple Foundation Models / Gemini integration.
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Banking and insurance customer apps
Banking and insurance customer apps for onboarding, servicing and collections at the BFSI institutions Kolkata is headquarters to.
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Shared-services and customer-support apps
Shared-services and customer-support apps for the back-office and service-desk teams Kolkata runs on behalf of businesses elsewhere.
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Custom enterprise apps
Custom enterprise apps for sales, field service and internal operations.
How we deliver
Our 5-step delivery process.
From first conversation to store listing — what happens, in what order, and what you get to see at each stage.
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Architecture
Senior architects propose the stack, data model, integration surface and a cost ceiling — before a line of code is written.
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Build
Senior-only engineering, weekly demos, GitHub access from day one and milestone-based releases. You watch it ship.
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Test
Manual QA, automated test coverage, security review and App Store / Play Store submission preparation.
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Launch
Day-one App Store and Play Store deployment, with included post-launch support.
Tech stack
The stack we use.
Chosen per project against your existing systems, scale and compliance needs — not a fixed house stack.
Mobile
- Swift
- Kotlin
- Flutter
- React Native
- Expo
- Apple Intelligence
Swift, SwiftUI, Kotlin, Jetpack Compose, Flutter, React Native, Apple Intelligence (App Intents, Foundation Models), Android NDK.
Backend & cloud
- AWS
- Azure
- Google Cloud
- Node.js
- Python
- Go
- PostgreSQL
- MongoDB
- Redis
AWS, Microsoft Azure, Google Cloud Platform, Node.js, Python, Go, PostgreSQL, MongoDB, Redis.
AI & ML
- Claude
- OpenAI
- Gemini
- LangChain
- TensorFlow
- Core ML
Apple Foundation Models (AFM 3), Claude, OpenAI, Gemini, RAG pipelines, on-device ML with Core ML and TensorFlow Lite.
E-commerce & integrations
- Shopify
- Stripe
- Firebase
- Mixpanel
- Razorpay
- Twilio
Shopify, Stripe, Razorpay, Twilio, Firebase, Mixpanel, Segment.
Why eCorpIT
Why eCorpIT for your Kolkata app project.
Every claim here is one you can verify before you sign — certificates, partner listings and a registered address.
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Honest about location
headquartered in Sector 83, Gurugram. Kolkata clients are served remotely, with on-site trips for kickoff and milestone reviews. We do not list a Sector V or New Town address we do not occupy.
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CMMI Level 5
the highest CMMI for Development maturity level — external proof of delivery discipline and audit-friendly documentation.
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MSME Certified
registered under the Government of India scheme.
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Verified partners
AWS, Microsoft, Google, Shopify, Kaspersky and Desktime.
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Senior-only delivery
no bench juniors charged at senior rates.
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14-day onboarding promise
engineering on your project within two weeks of contract.
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Full IP, code and data ownership
yours from day one, with GitHub access throughout.
Industries we serve
Deep Experience Across Business Verticals
We map our practice mix to the operating reality of each sector. Hover any card to see how we deliver in that vertical.
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Healthcare
Clinical platforms, telemedicine, patient apps, EHR integration, compliance-aligned design.
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Education
LMS, AI tutors, assessment platforms, school management.
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Manufacturing
IIoT platforms, predictive maintenance, computer-vision QA, MES.
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Sport and Event
Sports governance platforms, scoring and rankings, ticketing, event operations.
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Retail
D2C platforms, omnichannel commerce, AI personalization.
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Consumer & Distribution
Distributor portals, B2B catalogs, route-to-market platforms.
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Media
OTT, finance media, content recommendation, editorial systems.
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Startups & Enterprises
MVP delivery for founders; modernization and AI integration for enterprise teams.
Who we have built for around Kolkata.
We deliver apps for fintech, manufacturing, education, healthcare, retail & D2C, real estate, media, sports & events and SaaS. Real client work includes Indian Golf Union (Digital Handicap & Golf Operations Platform), Global Banking & Finance Review (Astro + Sanity media platform), Multi Solar, CDOT, RN Sports Marketing, Hyderabad School of Banking & Finance, Candila Education and Furrvana.
Transparent pricing
Indicative pricing & engagement models.
| Project type | Indicative range (INR) |
|---|---|
| AI mobile app MVP | ₹6.5L – ₹20L |
| Full mobile app with backend | ₹12.5L – ₹50L |
| AI agent / RAG system | ₹4L – ₹25L |
| SaaS platform MVP | ₹10L – ₹42L |
| Dedicated developer pod | Monthly retainer based on scope |
Fixed-Price MVP
We own scope, milestones and acceptance criteria. Weekly demos, milestone-based invoicing. Best when the brief is clear and you want budget certainty.
Dedicated Pod
A senior, dedicated engineering pod on your product month to month. Best for active product development with an evolving roadmap.
Staff Augmentation
Senior engineers embedded into your existing team, your tools, your standups — extending capacity without the hiring lead time.
Hourly
Weekly invoicing against logged hours. Best for short discovery sprints, technical spikes or maintenance.
Ranges are planning anchors in INR (₹L = lakh; ₹1L = ₹100,000). Price your specific Kolkata project →
See your number in writing.
Send your brief and a senior architect replies within one business day — recommended scope, an indicative price range, and a realistic timeline. No obligation.
Got it — we'll be in touch within 24 hours.
A senior architect will reply from contact@ecorpit.com with scope, an indicative price, and a timeline.
Reference —
About Kolkata
About Kolkata — and how we serve it.
Kolkata's technology work sits in two clusters a few kilometres apart. Salt Lake Sector V, built out from the 1990s, is the dense one: floors in Technopolis and Bengal Intelligent Park let to IT services and ITeS firms rather than whole campuses. New Town absorbed the campuses Sector V had no room for — TCS Gitanjali Park, Ecospace Business Park and the Bengal Silicon Valley plots in Action Area II. Around both is the older commercial city that still sets the tone: ITC on Chowringhee, Coal India at Coal Bhawan, UCO Bank, the Howrah engineering belt. The mobile demand that mix produces is operational rather than consumer — customer and back-office apps for banking and insurance, and mobile front-ends over systems decades old.
eCorpIT has no office in Kolkata. Sector 83, Gurugram is the only address we hold, and we would rather say that than dress up a co-working desk near Sector V as a branch. A Kolkata engagement runs on Slack and GitHub through the working day, one video demo a week, and flights in for kickoff and each milestone review — broadly the rhythm Kolkata's own delivery centres already keep with clients they never sit beside. What we ask a Kolkata buyer to weigh in place of a local address is the process evidence: CMMI Level 5, ISO/IEC 27001:2022 and ISO 9001:2015, senior-only engineers, and code and IP in your name from day one.
Delivery reach
Built in India for Kolkata — trusted worldwide.
From our NCR engineering hub we deliver to Kolkata and to clients across the US, UK, UAE, Australia and Canada — the same senior team, the same CMMI Level 5 process.
Ready to start your Kolkata app?
Tell us what you're building. NDA on request, your IP from day one, senior-only delivery, 14-day onboarding.
Got it — we'll be in touch within 24 hours.
A senior architect will reply from contact@ecorpit.com with scope, an indicative price, and a timeline.
Reference —
Kolkata — answers, up front
Which is the best mobile app development company in Kolkata?
eCorpIT is a CMMI Level 5, senior-only mobile app development company serving Kolkata from its NCR engineering office. It builds native iOS (Swift), Android (Kotlin) and cross-platform (Flutter, React Native) apps with AI-native features, is an AWS / Microsoft / Google / Shopify partner, gives you full IP and code ownership from day one, and commits to a 14-day onboarding.
How much does mobile app development cost in Kolkata?
In Kolkata, an AI mobile app MVP typically runs ₹6.5L–₹20L, a full app with backend ₹12.5L–₹50L, and a SaaS platform MVP ₹10L–₹42L (₹L = lakh). The exact figure depends on scope, platforms and integrations — eCorpIT returns a free written estimate within one business day.
Do you need a Kolkata office to build a mobile app?
No. eCorpIT delivers Kolkata app projects remotely from our Sector 83, Gurugram office — Slack and GitHub daily, weekly video demos, and on-site visits for kickoff and milestone reviews. Same time zone and language as the vendors Kolkata teams already work with across India.
FAQ
Kolkata mobile app development, answered.
What Kolkata teams ask before choosing a mobile app development company.
No matches. Try a different keyword or contact us directly.
Is there an eCorpIT team based in Kolkata?
No. Everyone who would work on your project sits in our only office, at 1120, 11th Floor, SVH 83 Metro Street, Sector 83, Gurugram, Haryana 122012. Kolkata clients are served remotely, with periodic on-site trips for milestone reviews. We will not claim a Salt Lake or New Town presence we do not have.
How does remote collaboration actually work for a Kolkata client?
One time zone, one business language, no handover lag. Day to day you get a shared Slack channel and commit-level visibility in your GitHub organisation; once a week there is a live demo call in place of a written status report. Kickoff and each major milestone we do face to face — we fly to Kolkata and work out of your office for those. Teams who already run delivery from Sector V for clients in other cities will recognise the shape of it.
What type of Kolkata clients is this set up for?
Banking, NBFC and insurance teams putting customer or back-office workflows on mobile; manufacturing, engineering and FMCG groups with field and distribution networks across eastern India; education institutions and healthcare providers building learner or patient apps; and founder-led product teams that want senior mobile engineers without hiring them permanently.
Can you build BFSI and field-force apps for Kolkata companies?
Yes. Both are core enterprise work: customer onboarding and servicing apps, branch and back-office tooling, collection and distribution apps for field teams working across West Bengal and the Northeast, with offline-first data capture where connectivity is patchy. Built to DPDP Act 2023 requirements, RBI guidance for regulated lending and payments, and ISO-aligned data handling.
What's your AI / machine learning capability for Kolkata teams?
The stack is settled; what changes is what you point it at. Apple Foundation Models (AFM 3) run on-device on iOS 27, so Bengali, Hindi and English voice and text input can be understood without the recording or the typed note leaving the handset. Google Gemini gives the same capability across Android and Flutter builds, while Claude and OpenAI take the heavier cloud-side reasoning — BFSI document extraction, from account-opening forms to claim files, is the common case here. RAG pipelines put decades of back-office documentation behind a plain-language question, and iOS 27 App Intents migration lets Siri reach those answers directly.
What's the typical timeline from contract to App Store launch?
A mobile app MVP runs 10–16 weeks from kickoff. AI-powered apps with RAG or on-device ML run 14–22 weeks. The 14-day onboarding promise means engineering on your project within two weeks of contract signing.
Who owns the code and IP for a Kolkata project?
You do. You own source code, IP and customer data from day one. GitHub access throughout the engagement, full repository transfer at any milestone. NDAs and IP assignment language form part of the standard Master Services Agreement we sign with every client.
Get in touch
Start your Kolkata mobile app project.
- Emailcontact@ecorpit.com
- Phone / WhatsApp+91 9810 940 524
- Office1120, 11th Floor, SVH 83 Metro Street, Sector 83, Gurugram, Haryana 122012, India
- HoursMonday–Friday, 09:00–18:00 IST
Keep reading
Related guides & cities.
Ready to start your Kolkata mobile app project?
Get a free estimate with quote turnaround within one business day, or open the calculator for a 90-second range. Senior-only delivery, 14-day onboarding, your IP from day one.