Delhi NCR · Mobile App Development

Mobile App Development Company in Delhi

4Byte is a mobile app development company serving businesses across Delhi NCR. We build custom iOS, Android, and cross-platform apps for startups, D2C brands, and growing companies across Delhi, Noida, and Gurugram.

Delhi NCR is one of the biggest mobile markets in India. People here order food, book cabs, pay bills, shop, and manage their money from their phones. If your business is not on that screen, it is on nobody's list.

You work directly with the founders who write the code. No account managers, no juniors learning on your project, and a test build you can install on your own phone every week.

5+ yrs engineer experience45+ products shippedBuilding for Delhi NCR

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Tell us what you're building, we'll reply within 4 hours.

100% free · No obligation

Trusted by businesses in Delhi NCR and beyond.

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Digitalstores
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Bekarjobs
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Asamaha
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Saveero
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Funnellai
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Digitalstores
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Bookmarksbrain
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Bekarjobs
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Asamaha
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Saveero
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Funnellai
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Digitalstores
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Bekarjobs
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Asamaha
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Bekarjobs

Trusted by teams building the future

Why mobile

Why Delhi NCR Businesses Are Building Mobile Apps

Delhi NCR has over 30 million smartphone users. People here do not browse, they tap, swipe, order, and pay. The businesses that have figured this out are growing. The ones still relying only on a website are watching their competitors pull ahead.

An app is not a luxury anymoreIt is where your revenue lives. For D2C brands shipping from Okhla, restaurants in South Delhi, fintech companies in Gurugram, and coaching centres across NCR, the app is often the primary way customers interact with the business.
Push notifications are your cheapest marketing channelOnce someone installs your app, reaching them costs nothing. No ad spend, no algorithm changes, no bidding war. You have a direct line.
An app does what a website cannotCamera, GPS, payments, biometric login, offline access. These features make experiences faster, more personal, and harder to leave. That is why app users convert and retain at higher rates than website visitors.
A badly built app is worse than no appIt crashes on older phones, drains battery, gets bad reviews, and burns the trust you spent months building. In a market with this many choices, one bad experience and the user is gone.

What we build

App Development Services in Delhi NCR

We handle everything from a rough idea to a live, maintained app, and choose the right approach for each project.

iOS App Development

Native iPhone and iPad apps built to Apple's standards, fast, smooth, and ready for the App Store.

Premium products & iPhone audiences
Android App Development

Native Android apps built to perform across the range of devices Delhi NCR users actually carry.

For the widest reach across NCR
Cross-Platform App Development

One codebase, both platforms. React Native or Flutter, launching on iOS and Android together.

Both platforms, one budget
MVP App Development

A focused first version with only what is needed to launch, get real users, and learn what to build next.

For validating an idea
E-commerce and Delivery Apps

Shopping, ordering, and delivery apps with payments, live tracking, and smooth checkout.

D2C, restaurants, grocery, delivery
Fintech and Payment Apps

Secure apps for payments, lending, investing, and money management, built to handle real transactions safely.

Fintech firms across NCR & Gurugram
Enterprise and Internal Apps

Apps that make your own team faster, from field operations and approvals to inventory and reporting.

For processes off-the-shelf can't handle
App Redesign and Modernisation

A rebuild for an app that is slow, crashing, or stuck on an outdated stack.

For apps hurting more than helping

The tech decision

iOS, Android, or Cross-Platform. Which Should You Build?

This is the first real decision, and the wrong one wastes money. Here is the straightforward version.

Native (iOS or Android)Cross-Platform (RN or Flutter)
What it isA separate app for each platformOne codebase that runs on both
Speed to launchSlower, two separate buildsFaster, one build, both stores
CostHigherLower for most projects
PerformanceMaximum, for complex appsExcellent for the vast majority
Best forGames, AR, heavy graphicsMost business, e-commerce, and startup apps

The honest default: for most Delhi NCR businesses, cross-platform is the smarter path. You reach both audiences, launch faster, and spend less, with performance that handles everything most apps actually need to do.

We recommend native only when your app genuinely requires it. You will hear a straight recommendation during the free consultation, not a pitch for whichever option costs more.

Capabilities

Features We Build Into Apps

Building blocks we have shipped before, so they arrive proven.

Secure Login & Onboarding

Email, phone OTP, social sign-in, biometrics.

Payments & Subscriptions

UPI, cards, wallets, and recurring payments through trusted gateways.

Push Notifications

The feature that brings users back, done without being annoying.

Real-Time Features

Live tracking, chat, instant updates.

Maps & Location

GPS, geofencing, delivery tracking, and location-aware experiences.

Camera & Media

Photo, video, document scanning, and file uploads.

Offline Mode

Apps that keep working when the network drops.

In-App Chat & Support

Help without leaving the app.

Admin Dashboards

The web panel your team uses to manage the app.

Analytics

See what users do, not what you assume they do.

AI Features

Recommendations, smart search, and automation where they genuinely help.

Third-Party Integrations

CRMs, ERPs, payment systems, and the tools you already use.

How it works

Our App Development Process

We build in stages that each produce something real, so you are never months in wondering what is happening.

01
Free consultation and scopingWe talk through your idea, your users, and the business behind it. You get an honest view of scope, timeline, and cost, and we define the smallest version worth launching.
02
UX and UI designWe design the screens and flows around how people will actually use the app. You review a clickable prototype before any code is written.
03
DevelopmentBuilt in weekly sprints, with a test build you can install on your own phone and try whenever you want.
04
Testing and QATested on real devices, not just simulators, across screen sizes, OS versions, and real-world network conditions.
05
App Store and Play Store launchWe handle submission, store listings, screenshots, privacy declarations, and the review process. You end up with a published app, not a build stuck in review.
06
Support and growthUpdates, OS compatibility, new features, and improvements as your app grows and the platforms evolve.

Launch

App Store and Play Store Launch, Handled for You

Getting an app approved is where many first-time launches stall. Apple and Google both reject apps for reasons that are not obvious until you have been through the process. We handle the full submission: developer accounts, store listings, screenshots, privacy policies, and the review cycle. You focus on the product. We handle the paperwork and the back-and-forth.

Investment

App Development Cost in Delhi NCR

The honest answer is that it depends on scope, but that does not help when you are trying to budget. Here is how app pricing generally works in the Delhi NCR market.

What changes the price: the number of features, one platform or both, native versus cross-platform, design complexity, integrations like payments and maps, and whether there is a backend and admin panel.

Type of appTypical range
Simple app (MVP, few features)Get a fixed quote, to be added
Mid-complexity business appGet a fixed quote, to be added
E-commerce or on-demand appGet a fixed quote, to be added
Complex or enterprise appGet a fixed quote, to be added

A word on very cheap quotes. Delhi NCR has more app development companies than almost any market in India, which means pricing ranges from very low to very high. An app quoted far below market is usually a rushed template with no real testing, the kind that crashes, gets rejected by the App Store, and needs rebuilding. The cheapest quote is almost never the cheapest outcome.

What we do instead: after a free consultation, you get a fixed, written estimate with the full scope defined. No hourly billing, no scope creep, no hidden costs later.

Choosing wisely

How to Choose a Mobile App Developer in Delhi NCR

Delhi NCR has over a thousand app development companies. Here is what separates a good mobile app developer from an expensive mistake.

01
Ask who writes the codeMany companies pitch with their best people and assign your project to juniors. Ask who will actually be building your app.
02
Confirm you own everythingSource code, App Store and Play Store accounts, design files, all of it should be yours from day one. If it is not, you are locked in.
03
Download their appsDo not judge by screenshots or portfolio images. Install real apps they have built. Are they fast? Do they crash? What do the reviews say?
04
Ask how they test"It works on my phone" is not testing. Ask about real-device testing across Android versions and older hardware, the phones your actual customers use.
05
Get the scope in writingApp projects are where scope creep hits hardest. A fixed, written scope with a clear estimate protects you. In a market known for add-on charges, this matters.
06
Ask who handles the store submissionGetting approved on the App Store and Play Store is a real skill. Make sure it is their responsibility, not yours.
07
Ask what happens after launchApps break with every OS update. If the answer is "project closed," keep looking.
08
Talk to the builders firstIf you cannot reach the founders or developers before you pay, that will not improve after.

Technology

Technologies We Build With

You do not need to know these tools. Here is what each one means for your app.

Cross-platform apps

React Native & Flutter. One codebase for iOS and Android, faster launch, lower cost, without the app feeling like a compromise.

Native apps

Swift & Kotlin. Maximum performance and full platform access, for apps that genuinely need it.

The backend

Node.js, Python, PostgreSQL & Supabase. Accounts, data, and business logic built to stay fast as your user base grows.

Payments

Razorpay, Stripe & UPI. Secure payments Indian users already trust.

Cloud & infrastructure

AWS, Google Cloud & Firebase. Scales when your app takes off, so a good week is not a technical crisis.

AI & smart features

OpenAI & on-device AI. Recommendations, assistants, and automation where they add real value.

Industries

Industries We Build Apps For in Delhi NCR

Delhi NCR's economy is one of the most diverse in India, and every industry here has a reason to go mobile.

D2C & Retail

Shopping apps built for speed, repeat purchases, and easy checkout.

Food, Grocery & Delivery

Ordering, kitchen management, and live tracking apps for NCR's on-demand economy.

Fintech

Payment, lending, and investment apps for Gurugram's fintech corridor and beyond.

Education & Coaching

Course apps, live classes, test series, and student management.

Healthcare & Wellness

Appointment booking, telemedicine, and health tracking apps.

Real Estate

Property discovery, listings, site visit booking, and lead management.

Trading & B2B

Order management, catalogue apps, and tools for Delhi's trading community going digital.

Hospitality & F&B

Booking, ordering, and loyalty apps for restaurants and hotels.

Logistics & Transport

Fleet, dispatch, and tracking apps for NCR's movement of goods and people.

Government & Citizen Services

Public-facing apps for institutions and service providers.

Startups & SaaS

Mobile products for NCR's fast-growing tech ecosystem.

Where we work

Areas We Serve Across Delhi NCR

We work with businesses across the full National Capital Region.

Delhi
Connaught PlaceNehru PlaceSaketOkhlaDwarkaRohiniLajpat NagarGreater KailashVasant KunjHauz KhasJanakpuri
Gurugram
Cyber CityGolf Course RoadSohna RoadSector 29MG RoadUdyog Vihar
Noida
Sector 62Sector 18Film CityGreater Noida

Most projects run remotely with weekly calls and a shared test build. If you would rather meet to plan your app, that is easy to arrange across NCR.

Our work

Our Work

ExcelAI project dashboard
Mobile-first AI platform

ExcelAI, a mobile-first AI data platform

The problemOrganisations needed high quality AI training data, and contributors needed a simple way to do it from their phone.
What we builtA mobile-first app for labelling, annotating, transcribing, and evaluating AI outputs across healthcare, education, finance, and language, with quality scoring and privacy safeguards.
The resultA reliable, privacy-safe data pipeline inside a usable mobile app.
6+ AI domains10+ task typesGDPR ready
Funnell.ai analytics dashboard
AI product · Launched in 4 weeks

Funnell.ai, an AI product launched in 4 weeks

The problemA founder wanted to launch an analytics tool for content creators but had no technical team.
What we builtAn AI-powered analytics platform on Next.js, Supabase, and OpenAI, unifying cross-platform metrics and generating daily growth strategies.
The resultLive in four weeks, built to scale.
3.2x follower growth5,000+ creators18h saved / mo

The team

The People Who Will Build Your App

When you work with 4Byte, you work directly with the founders. No account managers, and no juniors on your budget.

Abdun Noor Faruki Biswas, Founder and CEO of 4Byte

Abdun Noor Faruki Biswas

Founder & CEO

Abdun leads product strategy and client relationships. He has spent over five years building apps, SaaS products, and AI systems, and keeps every project tied to a real business outcome rather than a feature list.

LinkedIn →
Imran Shaikh, Co-Founder and CTO of 4Byte

Imran Shaikh

Co-Founder & CTO

Imran drives the technical architecture and engineering standards. With five plus years shipping production applications, he makes sure every app we deliver is fast, stable, and built on a codebase that can grow.

LinkedIn →

Why 4Byte

Why Delhi NCR Businesses Choose 4Byte

Experienced engineers, not a learning curve

Our founders have built apps and software for over five years. The studio is new, the people building your app are not.

You talk to the founders

Not a salesperson or account manager.

One team from idea to App Store

Design, development, testing, and launch under one roof.

Fixed, written estimates

Full scope agreed upfront, no hidden costs. In a market with over a thousand app companies, this matters.

Custom, not templates

Built for your business and tested on real devices.

You own everything

Code, store accounts, design files. No lock in.

We serve all of NCR

Delhi, Noida, and Gurugram.

We stay after launch

Apps need updates with every OS release, and we are there for them.

▸ Social Proof

Don't take our word
— hear it from them.

Real clients. Real results. Verified reviews from founders, CTOs and operators who shipped with us.

45+
Happy clients
5.0
Avg. rating
video_review.mp4
VERIFIED

How Funnell.ai went from an idea to a live AI analytics platform in 4 weeks.

A

Asif

Founder · Funnell.ai

✓ Verified

They did an amazing job and built exactly what I was looking for. It's not often you find someone that fully understands your vision, but he did everything I was hoping for.

Basir

Basir

Founder · Asamaha

Great experience. Clear communication, stay on task, and deliver exactly what's asked without wasting time. If you need someone dependable who can follow instructions, implement feedback, and get the work done without drama, they're a good fit.

Britton

Britton

Founder · TrackTech

Needed a website up and running within 24 hours for a presentation, and it was delivered in less than 12 hours. Excellent experience and would happily work with Abdun again.

Van

Van

Founder · Saveero

Working with Abdun has been an absolute dream. He implemented the updates to our Insights page with precision and care, mirroring the wireframe I provided perfectly — down to the smallest details.

Vanessa

Vanessa

Founder · Jourlev

FAQ

Frequently Asked Questions

How much does mobile app development cost in Delhi NCR?+

It depends on scope. A simple MVP, a business app, and a full enterprise app are very different builds. Delhi NCR has the widest price range of any market in India, and very cheap quotes usually mean a rushed build that needs replacing. We give you a fixed, written estimate after a free consultation.

How long does it take to build an app?+

A focused MVP typically takes six to ten weeks. More complex apps with multiple features or both platforms take longer. You get a firm timeline after the free consultation, and you can install a test build every week.

Should I build for iOS, Android, or both?+

For most Delhi NCR businesses, cross-platform covers both audiences faster and more affordably. If your product is premium or iPhone heavy, iOS first can make sense. We help you decide based on your users and budget during the free consultation.

What is the difference between native and cross-platform?+

Native apps are built separately for each platform and offer maximum performance, which matters for games and heavy graphics. Cross-platform apps share one codebase across iOS and Android, are faster and cheaper to build, and handle most business and startup apps perfectly well.

Do you build the backend too?+

Yes. Most apps need a server, database, and admin panel behind the scenes. We build the full product, the app users see and the system that powers it.

Do you handle App Store and Play Store submission?+

Yes. We manage the full process, accounts, listings, screenshots, privacy policies, and the review cycle, so your app gets published properly.

Do I own the app and the code?+

Yes. You own your app, source code, design files, and store accounts. We build on standard technologies and hand over cleanly. No lock in.

Will you maintain the app after launch?+

Yes. Apps need regular updates as iOS and Android evolve. We stay on for maintenance, bug fixes, and new features.

Can you redesign my existing app?+

Yes. We take on rebuilds for apps that are slow, crashing, or expensive to change. We start by understanding what is there and protecting what users rely on.

Can you add AI features to my app?+

Yes. Recommendations, smart search, assistants, and automation, built in where they add real value.

How long has 4Byte been around?+

4Byte was founded recently, but our founders spent over five years building apps and software independently before starting the studio. 45+ products shipped between them.

Do you serve Noida and Gurugram?+

Yes. We serve the full Delhi NCR region, including Delhi, Noida, Greater Noida, Gurugram, and the surrounding areas.

How do we get started?+

Book a free consultation, or send the form on this page. We will talk through your idea, give you a clear plan, an honest timeline, and a fixed estimate, with no obligation.

Get started

Get in Touch. Free App Consultation

Tell us what you are building and we will come back within four hours with a clear plan, an honest timeline, and a fixed estimate.

100% free. Reply within 4 hours. No obligation.

Start your project

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Ready?

Ready to Build Your App?

If your app is going to carry your business, it deserves to be built properly. Designed with care, tested on real devices, and launched by people who have done it before.

Tell us your idea. We will give you a straight answer on what it takes, how long, and what it costs, even if that answer is that you are not ready to build yet.

100% free. Response within 4 hours. No obligation.