Hire a Freelance Developer to Build Your Mobile App or Website

Muhammad Numan is a freelance full-stack developer who builds iOS and Android apps, websites and web apps, and AI agents and automation for startups, founders and product teams. He works remotely with clients in the US, UK, Canada, Ireland, the Netherlands, Germany, France, Poland, Switzerland, Italy, the UAE, Saudi Arabia, Qatar, Singapore and Australia. He has 9+ years of software engineering experience, has built apps such as The Entertainer, Zirtue, Shobbak and One X Platform, is the author of react-native-compressor (200k+ weekly npm downloads), and has 25k+ reputation on Stack Overflow. To start a project, message him on WhatsApp at +92 342 9555558 or email muhammadnuman70@gmail.com.

If you have an idea, a half-finished app, or a website that needs to become a real product, this page answers the questions founders usually ask before hiring a developer.

Planning a mobile app or stuck on one? Message me on WhatsApp or see how I work with app teams.

Who can build my mobile app?

I can. I build mobile apps for iOS and Android from one codebase, and I handle the whole path from first screen to App Store and Google Play release.

Most of my mobile work uses React Native and Expo, which lets one team ship to both platforms without maintaining two separate apps. When a feature needs something the cross-platform layer cannot do well, such as camera processing, media compression or a platform SDK, I write native modules in Swift or Kotlin. That native experience is how react-native-compressor came about: it is an open source library I wrote and still maintain, and other developers install it more than 200,000 times a week.

You do not need to be technical to work with me. I explain trade-offs in plain language, write down what we agreed, and show you working builds on your own phone as we go. If you want more detail on how I work on React Native projects specifically, see hire a React Native developer.

What I build

Product type	Examples	Typical stack
Mobile app (iOS and Android)	Marketplaces, booking apps, fintech flows, loyalty and rewards apps, internal field apps	React Native, Expo, TypeScript, native modules in Swift and Kotlin, Firebase
Website or web app	Marketing sites, SaaS dashboards, customer portals, content sites with a blog	Next.js, React, Node.js, a headless CMS such as Payload, PostgreSQL or MongoDB
AI features and agents	Chat assistants, document Q&A, AI that answers support messages, automated workflows across CRM, email and WhatsApp	LLM APIs, tool calling, MCP, RAG, n8n, Node.js or Python
Admin dashboards	Order and user management, content moderation, reporting, back-office tools	Next.js or React, Node.js APIs, role-based access

Can you build both the app and the website?

Yes. I build the mobile app, the website and the backend that connects them, so you have one person responsible for how the whole product fits together.

This matters more than it sounds. When the app, the web dashboard and the API are built by different people, small mismatches pile up: a field named one way in the app and another way on the server, a login that works on mobile but not on the web. Because I work across React Native, Next.js and Node.js with TypeScript throughout, data types and business rules can be shared between the app and the website. For web projects in detail, see my Next.js development services.

I also add AI where it earns its place, for example an assistant that answers customer questions from your own documents, or an automation that turns incoming leads into CRM records and follow-up messages. More on that on the AI agent development page.

Do you work with clients in the UK, Europe and the Gulf?

Yes. I work remotely with clients across North America, the UK and Ireland, mainland Europe, the Gulf, Singapore and Australia, and I plan each project around a fixed window of shared working hours.

Where my clients are

I work from Pakistan (UTC+5, no daylight saving). Here is how collaboration works in each region.

United States and Canada. The time difference is large, so I keep a fixed overlap window in your morning for calls and reviews, and do focused build work while you sleep. You start your day with a written update and a new build to test.

United Kingdom and Ireland. There is a four to five hour difference, which leaves your whole morning and early afternoon for live collaboration. Calls, design reviews and release days fit comfortably inside a normal UK working day.

Europe: Netherlands, Germany, France, Poland, Switzerland and Italy. With three to four hours of difference, most of the European business day overlaps. For EU products I build with GDPR in mind from the start: collecting only the data the product needs, consent flows where required, hosting in EU regions when you want it, and clear data export and deletion paths. German, French or Italian language support is handled through proper localization rather than hard-coded text.

The Gulf: UAE, Saudi Arabia and Qatar. The difference is one to two hours, so we share almost the full working day. I have built localized, right-to-left interfaces for Gulf users, including right-to-left layouts on the Chalhoub ENTERTAINER rewards app, so Arabic and RTL support is part of the plan from the first screen rather than a later fix.

Singapore and Australia. You are ahead of me by three hours (Singapore) to five or six hours (eastern Australia). That gives a solid overlap in your afternoon, and work continues into your evening, so updates are waiting the next morning.

How much does it cost to build an app or website?

It depends on scope, and I give you a written quote after a short call rather than a number from a price list. Most of the cost comes from a few clear drivers you can control.

The main drivers are:

Number of user roles. An app for one type of user is much simpler than a marketplace with buyers, sellers and an admin.
Integrations. Payments, bank connections, maps, calendars, CRMs and AI services each add work and testing.
Platforms. A mobile app only, a website only, or both with a shared backend.
Design readiness. Finished Figma designs are faster to build from than a rough idea.
Compliance and data. Fintech, health data or GDPR-heavy products need more care around security and storage.

If you want to understand the numbers before we talk, I wrote a detailed breakdown in how much React Native app development costs in 2026. A common way to keep cost down is to launch a focused first version, learn from real users, and then add features.

How long does it take?

A focused first version usually takes a few weeks to a few months, depending on scope. You get a timeline with the written quote, broken into weekly milestones.

Simple websites and landing pages are the quickest. A mobile app with accounts, payments and an admin dashboard takes longer, and App Store and Google Play review adds some time at the end, which I plan for. Each week you get a working build or a deployed preview, so you always know where the project stands instead of waiting for one big reveal.

What happens after launch?

After launch I stay on to fix issues, ship updates and keep the app compatible with new iOS and Android versions. Launch is the start of the product, not the end of the project.

Typical post-launch work includes crash monitoring, performance tuning, store updates when Apple or Google change their requirements, upgrading React Native and Expo versions, and adding the features users ask for. We can agree on an ongoing monthly arrangement or work in separate phases. Either way, the code is documented and kept clean, so another developer could take over if you ever need that.

Freelancer or agency: which is right for me?

For most early-stage products, a senior freelancer is the better fit: you talk directly to the person writing the code, decisions are faster, and you are not paying for layers of management. An agency can make sense when you need a large team working in parallel from day one.

With me, there is no account manager between you and the work. You explain the problem once, to the person who will solve it. I wrote a longer guide on this choice, including questions to ask any developer before you hire them, in how to hire a mobile app developer.

Recent work

Here is a selection of projects from my portfolio. Much of my work is under NDA, so these are the ones I can show.

Zirtue. A fintech app for lending between friends and family. I worked as a software engineer on React Native app delivery, Plaid bank account connections, Dwolla ACH payment flows, chat and production releases for iOS and Android.
Chalhoub ENTERTAINER. A rewards app with offers across dining, beauty, retail, fitness and entertainment. I worked as a React Native developer on feature delivery, localization with right-to-left support for the Gulf market, Braze messaging and native Android bridges.
One X Platform. An app builder portal that lets non-technical users assemble app modules for PWA, Expo and React Native products. The work covered a React builder interface, Node.js APIs, MongoDB, real-time updates with Socket.io and AWS deployment.
Shobbak. A marketplace and services product with mobile and web delivery across customer-facing workflows. I worked on it as a software engineer.
The Emirates Tourism. A tourism and offers app for attractions, hotels, restaurants and local experiences in the UAE, built with React Native.

How we start

Send a message. WhatsApp or email me a few lines about what you want to build, who it is for, and any deadline.
Have a 30-minute call. We talk through the idea, your users and your budget. I ask questions and point out risks early.
Get a written scope and quote. You receive a clear list of what will be built, the timeline, and the price, before any work begins.
Build in weekly milestones. Every week you see progress you can click or tap through, and you give feedback while changes are still cheap.
Launch and support. I handle the App Store, Google Play and web deployment, then stay on for fixes and the next round of features.

If you already know you need an app for both platforms, the cross-platform mobile app development page explains that approach in more depth.

FAQ

Do you sign NDAs and transfer IP?

Yes. I am happy to sign an NDA before you share details, and much of my past work is under NDA already. Once the project is paid for, the code, designs and accounts belong to you.

Can you take over an existing app?

Yes. I often pick up apps that were started by someone else. I begin with a short review of the code, dependencies and release setup, then tell you honestly what can be kept, what needs fixing, and what that will take.

Do you work alone?

I am an independent developer, so you work directly with me rather than through a team of account managers. If you already have a designer or other developers, I work alongside them and fit into your tools and process.

Which tools will we use to communicate?

Whatever suits you: WhatsApp, Slack, email or Microsoft Teams for messages, and Google Meet or Zoom for calls. Code lives in a repository you own, such as GitHub, so you always have access.

Can you add AI to my existing product?

Yes. I add features such as AI chat assistants, document search, content generation and workflow automation to existing apps and websites. We start with one clear use case, measure whether it helps users, and expand from there.

Ready to build?

If you have an app or website in mind, send me a short message on WhatsApp at +92 342 9555558 or email muhammadnuman70@gmail.com. Tell me what you want to build and who it is for, and I will reply with next steps and a time for a 30-minute call.