Mobile App Development
iOS & Android apps your users love
Native and cross-platform mobile applications with intuitive UX/UI. From consumer apps with millions of users to enterprise tools for field teams.
What We Deliver
Core Capabilities
- Native iOS & Android Development
- Cross-Platform (React Native, Flutter)
- UX/UI Design & Prototyping
- App Store Optimisation
- Mobile Backend & API Integration
Ready to get started?
Get a free technical brief — architecture options, timelines, and cost estimates delivered within 48 hours. No commitment required.
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By the Numbers
What clients achieve with GYSP
UX-first development process validated through user testing before a line of production code is written
React Native and Flutter deliver near-native performance at roughly half the development and maintenance cost
from finalised designs to both stores — for a feature-complete v1 built on a production-ready backend
Proven Results
Mobile Apps Case Studies
eCommerce & RetailHommey
A home services marketplace built to personalise at scale — real-time inventory, region-specific campaigns, and mobile-first UX that needed to work flawlessly from day one.
EdTechGen-AI Education Platform
Users were spending hours manually searching across PDFs, videos, and web pages. The question: could a single AI interface replace all of it — accurately, at enterprise scale?
FinTechOptions Trading Platform
Retail traders were making high-stakes decisions with manual calculations and static charts. They needed the kind of strategy tools professional desks take for granted — built for the masses.
Client Voices
What our clients say
“Partnering with GYSP gave us the foundation we needed to compete in a fast-moving market. Their team built a secure ordering platform, optimised mobile experience, and automated restaurant onboarding. The result was a smoother customer journey and the ability to handle peak demand without downtime. They deliver at startup speed.”
“We had a mobile app customers downloaded once and never reopened. GYSP rebuilt it from scratch — performance-first, personalised feed, one-tap reorder, a push strategy that actually respects the user. Day-30 retention went from 8% to 34%. Mobile channel revenue doubled in the first quarter post-launch.”
“Our legacy booking app was a consistent source of one-star reviews. GYSP redesigned and rebuilt it in React Native — offline mode, real-time inventory sync, a checkout flow that doesn't lose users. App Store rating went from 2.8 to 4.6 in four months. Booking conversion from search to confirmed reservation improved 31%.”
FAQs
Common questions
Everything buyers typically ask before starting a mobile apps engagement.
Ask us anythingNative iOS/Android or cross-platform — which is right for us?
Cross-platform (React Native or Flutter) for most consumer and enterprise apps — you get 90%+ of native performance at roughly half the development cost, and maintain one codebase. Native only when you need platform-specific capabilities (ARKit, advanced camera APIs, deep wearable integration) that cross-platform frameworks can't access.
How long does it take to launch on both the App Store and Google Play?
From finalised designs to both stores live: 10–14 weeks for a standard feature-complete v1. App Store review typically adds 1–3 days; we build review buffer into every timeline and know how to avoid common rejection reasons.
What happens if Apple or Google rejects our app?
We write app store listings and build review compliance into the process — not as a last-minute check. If a rejection does happen, we handle the response, make the required changes, and resubmit. Our clients don't manage App Store or Play Store communications.
Can you integrate the app with our existing backend and third-party services?
Yes — mobile is the presentation layer; the backend integration is where most of the complexity lives. We design clean API contracts upfront, handle auth flows (OAuth, biometric), and integrate with payment processors, push notification services, analytics SDKs, and your existing systems.
What does ongoing maintenance look like after launch?
OS updates can break functionality — we offer maintenance retainers covering OS compatibility testing, dependency updates, bug fixes, and minor feature iterations. App store algorithm changes are also handled as part of maintenance, including ASO updates.
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