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.
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Trusted by businesses in Delhi NCR and beyond.








































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.
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.
Native iPhone and iPad apps built to Apple's standards, fast, smooth, and ready for the App Store.
Premium products & iPhone audiencesNative Android apps built to perform across the range of devices Delhi NCR users actually carry.
For the widest reach across NCROne codebase, both platforms. React Native or Flutter, launching on iOS and Android together.
Both platforms, one budgetA focused first version with only what is needed to launch, get real users, and learn what to build next.
For validating an ideaShopping, ordering, and delivery apps with payments, live tracking, and smooth checkout.
D2C, restaurants, grocery, deliverySecure apps for payments, lending, investing, and money management, built to handle real transactions safely.
Fintech firms across NCR & GurugramApps that make your own team faster, from field operations and approvals to inventory and reporting.
For processes off-the-shelf can't handleA rebuild for an app that is slow, crashing, or stuck on an outdated stack.
For apps hurting more than helpingThe 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 is | A separate app for each platform | One codebase that runs on both |
| Speed to launch | Slower, two separate builds | Faster, one build, both stores |
| Cost | Higher | Lower for most projects |
| Performance | Maximum, for complex apps | Excellent for the vast majority |
| Best for | Games, AR, heavy graphics | Most 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.
Email, phone OTP, social sign-in, biometrics.
UPI, cards, wallets, and recurring payments through trusted gateways.
The feature that brings users back, done without being annoying.
Live tracking, chat, instant updates.
GPS, geofencing, delivery tracking, and location-aware experiences.
Photo, video, document scanning, and file uploads.
Apps that keep working when the network drops.
Help without leaving the app.
The web panel your team uses to manage the app.
See what users do, not what you assume they do.
Recommendations, smart search, and automation where they genuinely help.
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.
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 app | Typical range |
|---|---|
| Simple app (MVP, few features) | Get a fixed quote, to be added |
| Mid-complexity business app | Get a fixed quote, to be added |
| E-commerce or on-demand app | Get a fixed quote, to be added |
| Complex or enterprise app | Get 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.
Technology
Technologies We Build With
You do not need to know these tools. Here is what each one means for your app.
React Native & Flutter. One codebase for iOS and Android, faster launch, lower cost, without the app feeling like a compromise.
Swift & Kotlin. Maximum performance and full platform access, for apps that genuinely need it.
Node.js, Python, PostgreSQL & Supabase. Accounts, data, and business logic built to stay fast as your user base grows.
Razorpay, Stripe & UPI. Secure payments Indian users already trust.
AWS, Google Cloud & Firebase. Scales when your app takes off, so a good week is not a technical crisis.
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.
Shopping apps built for speed, repeat purchases, and easy checkout.
Ordering, kitchen management, and live tracking apps for NCR's on-demand economy.
Payment, lending, and investment apps for Gurugram's fintech corridor and beyond.
Course apps, live classes, test series, and student management.
Appointment booking, telemedicine, and health tracking apps.
Property discovery, listings, site visit booking, and lead management.
Order management, catalogue apps, and tools for Delhi's trading community going digital.
Booking, ordering, and loyalty apps for restaurants and hotels.
Fleet, dispatch, and tracking apps for NCR's movement of goods and people.
Public-facing apps for institutions and service providers.
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.
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, a mobile-first AI data platform
Funnell.ai, an AI product launched in 4 weeks
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
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
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
Our founders have built apps and software for over five years. The studio is new, the people building your app are not.
Not a salesperson or account manager.
Design, development, testing, and launch under one roof.
Full scope agreed upfront, no hidden costs. In a market with over a thousand app companies, this matters.
Built for your business and tested on real devices.
Code, store accounts, design files. No lock in.
Delhi, Noida, and Gurugram.
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.
“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
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
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
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
Founder · Jourlev
“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
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
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
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
Founder · Jourlev
How Funnell.ai went from an idea to a live AI analytics platform in 4 weeks.
Asif
Founder · Funnell.ai
“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
Founder · Jourlev
“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
Founder · Saveero
“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
Founder · TrackTech
“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
Founder · Asamaha
“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
Founder · Jourlev
“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
Founder · Saveero
“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
Founder · TrackTech
“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
Founder · Asamaha
“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
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
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
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
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.
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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.