Mobile App Development
Apps Your Users Will Actually Love
Cross-platform mobile apps built with React Native — one codebase, both iOS and Android. From consumer apps to internal business tools, shipped to both app stores.
Everything Included in This Service
Building a mobile app is one of the most significant technology investments a business can make. Done right, it opens a direct channel to your customers, automates business processes, and creates a competitive advantage that is hard to replicate.
At NiyajTech, we build cross-platform mobile apps using React Native — meaning one codebase delivers a fully native experience on both iOS and Android. This approach cuts development time by up to 40% compared to building two separate apps, without sacrificing the performance or feel that users expect.
From the initial wireframe to App Store and Google Play submission, we handle every step: UI/UX design, backend API development, database architecture, third-party integrations, testing, and post-launch support. Whether you are building a customer-facing consumer app, an internal business tool, or a marketplace platform — we have done it before.
Best for: Startups, SMEs, and entrepreneurs building a new product or digitising an existing business process.
What's Included
- iOS and Android from a single React Native codebase
- UI/UX design and interactive Figma prototyping
- Backend API and database development (Node.js + PostgreSQL)
- Push notifications, in-app payments, and authentication
- Third-party API integrations (maps, payments, CRMs)
- App Store (Apple) and Google Play submission
- Beta testing via TestFlight and Firebase App Distribution
- Post-launch monitoring and crash reporting setup
What Makes Our Mobile App Development Different
One Codebase, Both Platforms
React Native delivers true native performance on iOS and Android from a single codebase — cutting your cost and time to market by up to 40% vs. building two separate apps.
Pixel-Perfect UI/UX
We design every screen in Figma first, with interactive prototypes you can tap through before we write a line of code. No surprises at the end.
Secure Backend Included
Every app needs a server. We build your API, database, and authentication layer alongside the app — no need to hire a separate backend developer.
Full App Store Submission
Navigating App Store Review and Google Play policies is complex. We handle all submission documentation, screenshots, and compliance checks so your app gets approved first time.
Offline Functionality
Where appropriate, we build offline-first features so your app remains functional even without an internet connection — essential for field-based or logistics apps.
Scalable Architecture
We build with scale in mind from day one. Whether you have 100 users or 100,000, the architecture we design handles growth without expensive rewrites.
Our Mobile App Development Process
A clear, proven process so you always know what happens next — no surprises.
Discovery & Scoping
We map out your app's user flows, core features, and technical requirements. We identify the MVP scope — the minimum set of features needed to launch and validate.
UI/UX Design
Every screen designed in Figma with interactive prototypes. We test navigation flows and gather your feedback before any code is written.
Backend Development
We build your API endpoints, database schema, and authentication system. You get a staging API to test against throughout development.
App Development
React Native development begins. We deliver working builds for you to test via TestFlight (iOS) and Firebase App Distribution (Android) throughout the process.
QA Testing
Comprehensive testing across real devices — iPhone, Android phones and tablets. We test every user flow, edge case, and error state before submission.
Launch & Monitor
App Store and Google Play submission handled by us. Post-launch, we monitor crash reports and performance metrics and resolve any issues immediately.
Our Tech Stack
Common Questions About Mobile App Development
Q. Why React Native instead of Flutter or native development?
React Native uses JavaScript/TypeScript — the same language as the web — which means faster development, a larger talent pool, and easier integration with web backends. For most business apps, React Native performance is indistinguishable from native. We recommend native development only for apps with extremely demanding graphics or hardware requirements.
Q. How long does it take to build a mobile app?
A focused MVP with 4–6 core screens and basic backend typically takes 4–6 weeks. A full-featured app with complex workflows, multiple user roles, and third-party integrations takes 8–16 weeks. We scope your project in detail before committing to a timeline.
Q. Do I need an Apple Developer account?
Yes. To publish on the App Store you need an Apple Developer account (£99/year). For Google Play you need a Google Play Developer account (one-time $25 fee). We guide you through setting these up and handle all the submission work.
Q. What happens if Apple or Google rejects the app?
Rejection is rare when the app is built correctly and complies with store guidelines. If it does happen, we handle the resubmission and address any compliance issues at no extra charge.
Q. Can you add features to an app someone else built?
Yes, if the codebase is React Native and reasonably structured. We begin with a code audit to understand what was built and what it would take to extend it safely.
Other Services
Website Development
We design and develop fast, responsive, SEO-ready websites that turn visitors into customers. From a simple landing page to a full e-commerce store — delivered on time, on budget.
SaaS & Web Applications
Custom SaaS dashboards, portals, and web applications built for growth. We handle the complete stack — React/Next.js frontend, Node.js/FastAPI backend, PostgreSQL database, cloud deployment.
Graphic Design
Logos, brand identities, social graphics, and marketing materials designed to make your business instantly recognisable. All source files delivered — yours to use forever.
Have an App Idea? Let's Turn It Into Reality.
Book a free 30-minute call. We'll tell you exactly what it takes to build your app — timeline, cost, and tech stack.
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