Custom Mobile App Development Built for Scale and Performance

We build mobile applications that your users actually love - combining thoughtful UX design, solid engineering, and robust backend architecture to create apps that perform at scale.

Mobile Development Services

From native iOS and Android apps to cross-platform solutions and backend systems, we cover the full spectrum of mobile development - under one roof.

Native iOS Development

Purpose-built iOS applications written in Swift, designed to leverage the full power of Apple's platform - from performance to platform-native UX patterns.

Native Android Development

Robust Android apps built with Kotlin and Java, optimised for the wide spectrum of Android devices, versions, and screen sizes in use today.

Cross-Platform Development

Build once, deploy everywhere using React Native or Flutter - delivering near-native performance and a shared codebase that reduces time to market and maintenance cost.

Mobile Backend Development

Scalable, secure backend systems - REST APIs, push notification services, authentication flows, and cloud functions - engineered to power your app reliably at any scale.

API Integration for Mobile

Seamless integration of third-party APIs, payment gateways, maps, analytics, and enterprise systems - including Salesforce, ERP, and custom back-office platforms.

UI/UX Design for Mobile

Research-driven mobile interface design - wireframing, interactive prototypes, and pixel-perfect UI that follows iOS Human Interface Guidelines and Material Design principles.

App Maintenance & Updates

Ongoing support, OS compatibility updates, performance monitoring, and feature enhancements to keep your app healthy, secure, and competitive long after launch.

App Store & Play Store Submission

End-to-end management of the App Store and Google Play submission process - from compliance review to metadata optimisation and successful publication.

Industries We Build Mobile Apps For

We bring domain understanding to every engagement - enabling us to design and build mobile apps that solve real, industry-specific problems.

Healthcare
Retail
Logistics
FinTech
Education
Field Services

Our Mobile App Development Process

A structured, transparent six-stage process that keeps your project on schedule, on budget, and aligned with your business objectives throughout.

  1. Discovery & Strategy

    We begin by deeply understanding your business goals, target users, competitive landscape, and technical constraints. This stage produces a validated project scope, technical architecture proposal, and a realistic timeline.

  2. UX Design & Prototyping

    User flows, wireframes, and interactive prototypes are built and validated before a single line of production code is written. This prevents costly design changes during development and ensures the experience is right from day one.

  3. Development Sprints

    Iterative two-week sprints with regular demos keep you in the loop and in control. Each sprint delivers tested, working software - not just promises. Our engineering practices include code reviews, version control, and CI/CD pipelines.

  4. QA & Testing

    Comprehensive testing on real devices across iOS and Android - covering functional testing, performance benchmarking, security vulnerability scanning, and accessibility audits - before any release candidate is signed off.

  5. Store Submission

    We manage the complete App Store and Google Play submission lifecycle - compliance preparation, app metadata and screenshot optimisation, reviewer communication, and resolving any rejection issues swiftly.

  6. Support & Updates

    Post-launch monitoring, bug fixes, OS version compatibility updates, and new feature development keep your app performing and evolving alongside your business and your users' expectations.

What Makes a Great Mobile App Partner

Building a mobile app is straightforward. Building one that genuinely serves users, scales reliably, and stands up to security scrutiny requires a more disciplined approach - and that is what we bring.

Real Device Testing

We test on an extensive range of physical devices - not just simulators. Performance, layout rendering, and hardware interactions are validated on the actual hardware your users carry.

Performance Optimisation

Smooth animations, fast load times, and efficient memory usage are non-negotiable. We profile and optimise throughout development - not as an afterthought before launch.

Offline-First Architecture

Where your users operate in low-connectivity environments - field service, healthcare, logistics - we design offline-first data sync strategies that keep the app functional regardless of network availability.

Security Best Practices

Secure token storage, certificate pinning, encrypted local databases, and OWASP Mobile Top 10 compliance are built into every project from day one - protecting your users and your business.

Mobile apps rarely exist in isolation. Many of our clients pair mobile development with complementary services to deliver complete digital products.

Website Development

A great mobile app often needs an equally strong web presence. We build high-performance websites and web applications using modern stacks - PHP, Node.js, React, and more.

Website Development Services

Salesforce Consulting

If your mobile app needs to connect with Salesforce CRM data - for field service, customer portals, or sales tools - our certified Salesforce consultants can design the integration seamlessly.

Salesforce Consulting Services

Frequently Asked Questions

Answers to the questions we hear most often from clients considering a mobile app development engagement.

Do you build for both iOS and Android?

Yes. We build native iOS apps (Swift), native Android apps (Kotlin / Java), and cross-platform apps using React Native or Flutter. During the discovery phase, we help you decide which approach is right for your project based on your audience, budget, timeline, and feature requirements. Many clients choose cross-platform development for faster go-to-market and reduced cost, while others with highly platform-specific requirements opt for native builds.

How long does mobile app development take?

Timelines vary depending on scope and complexity. A focused MVP with core functionality typically takes 10-16 weeks from discovery to App Store submission. A more complex, feature-rich application can take 4-9 months. We provide a detailed project timeline and milestone plan after the discovery phase, so you always have a realistic picture of when to expect delivery. We do not commit to deadlines we cannot keep.

Do you provide post-launch app support?

Absolutely. We offer structured post-launch support and maintenance packages that include OS compatibility updates (when Apple or Google release new platform versions), bug fixes, performance monitoring, security patches, and ongoing feature development. Many of our clients continue working with us long after their initial launch, treating us as their extended engineering team. We are happy to discuss support arrangements as part of your initial engagement.

Can you integrate the app with Salesforce or our existing CRM?

Yes - this is one of our key differentiators. As an experienced Salesforce consulting partner, RASPSYS LLP can design and implement deep, bidirectional integrations between your mobile app and Salesforce CRM, including real-time data sync, custom Salesforce objects, and Experience Cloud portals. We also integrate with other CRMs, ERPs, and third-party platforms via REST and SOAP APIs. If your mobile app needs to talk to your business systems, we can make that happen reliably and securely.

Ready to Build Your Mobile App?

Book a free 30-minute consultation with our mobile development team.
We will review your requirements and outline an approach - no commitment required.