Mobile App
Development
Your customers live on their phones; your business should too. i4 Integrated Services Limited designs and builds mobile apps that are fast, intuitive, and tailored to your goals, whether you need a simple app for one platform or a powerful solution for both.
- Native or cross-platform
- Biometrics, GPS, offline mode
- Published to both stores
Four ways to build
From a quick single-platform launch to enterprise-grade apps running on every device your customers use, pick the scope that fits where your business is headed.
Basic Mobile App
A straightforward app built for either Android or iOS, ideal for startups and businesses looking to launch quickly on one platform. It's a smart way to reach your primary audience without spreading your budget across two builds.
- Core features and clean, functional design
- Built natively for Android or iOS
- Fast development and deployment
- Great starting point for testing your market
Basic Mobile App
The same simple, functional app, built once and deployed on both Android and iOS, saving time and cost. You reach both audiences from day one, without doubling your development effort.
- Core features with a single, unified codebase
- Consistent experience across both platforms
- Faster and more cost-effective than building separately
- Easy to update and maintain
Complex Mobile App
A feature-rich, custom-built app designed for one platform, ideal for businesses with specific, advanced functionality needs. It's built to handle real-time demands and grow alongside your user base.
- Advanced features: real-time data, payments, integrations
- Optimized performance for Android or iOS
- Scalable architecture built for growth
- Enhanced security and backend support
Complex Mobile App
A powerful, full-featured app built for both Android and iOS from a single, scalable codebase, with maximum reach and advanced functionality. It's the right choice for businesses that need enterprise-grade capability across every device their customers use.
- Advanced features across both platforms simultaneously
- Unified codebase with native-like performance
- Scalable, secure, and built for heavy usage
- Ideal for businesses scaling fast across markets
Native or cross-platform, decided on evidence
This is the first real decision in a mobile project, and it shapes cost, timeline, and maintenance for the life of the app. Neither answer is universally right.
Native — one platform, built for it
Written in the platform's own technologies for Android or iOS. The right call when raw performance, deep hardware integration, or a single known user base drives the decision.
- Best when
- Your users sit largely on one platform, or the app leans heavily on device hardware
- Codebase
- One codebase per platform
- Device features
- Full, immediate access to every native capability
- Performance
- The highest achievable on the target platform
- Maintenance
- A separate release cycle for each platform you add
- Distribution
- Google Play Store or Apple App Store
Cross-platform — one codebase, both stores
Built once with a modern cross-platform framework and released to Android and iOS together. Feature parity stops being something you have to chase across two teams.
- Best when
- You need both platforms from day one, or want both without doubling the build
- Codebase
- A single, shared codebase
- Device features
- Camera, GPS, biometrics, notifications, and offline access through the framework
- Performance
- Native-like, tuned to the workloads the app actually carries
- Maintenance
- One update and one test cycle covering both platforms
- Distribution
- Google Play Store and Apple App Store
The choice is made at discovery, against your users' actual device split, the device features the app depends on, and how many platforms you intend to support over the app's life. We will tell you when the cheaper option is also the correct one.
What we can build into the app
Available to either approach, and included where the app genuinely needs them rather than as a checklist.
Camera and document capture
GPS and location services
Fingerprint and facial authentication
Push notifications
Offline functionality
Secure file storage
Real-time data synchronization
Payment gateway integration
Enterprise system and API integration
Role-based access control
Eight phases, from first workshop to live in the stores
Each phase closes with named deliverables and your approval.
- 01
Discovery & Requirements Analysis
Work out what the app is for, who uses it, and how it fits the processes and systems already running the business.
What happens
- Stakeholder meetings and business process analysis
- Functional and technical requirements gathering
- User journey mapping
- Solution planning and platform decision
What you receive
- Requirements specification
- Functional requirements
- Project charter
- 02
UI/UX Design & Prototyping
Design the app and let your team use it as a prototype before a line of production code is written.
What happens
- User research and wireframing
- Interface design across the key screens
- Interactive prototyping
- Design validation and sign-off
What you receive
- Approved wireframes
- High-fidelity UI designs
- Interactive prototype
- 03
Application Development
Build the app, the backend it depends on, and the integrations that connect it to your existing systems.
What happens
- Mobile application development
- Backend and database integration
- API implementation and third-party integration
- Native device feature integration
What you receive
- Functional application in the development environment
- Working integrations and APIs
- 04
Testing & Quality Assurance
Test the app the way it will actually be used — across real devices, real OS versions, and real network conditions.
What happens
- Functional and usability testing
- Performance and security testing
- Device and OS version compatibility testing
- Defect resolution
What you receive
- Tested application
- QA report
- Resolved defect log
- 05
User Acceptance Testing
Your team uses the app against the requirements that were approved, and everything raised is dealt with before submission.
What happens
- Client review on real devices
- Feedback consolidation
- Issue resolution and final validation
What you receive
- Signed UAT report and client approval
- 06
Deployment & Go-Live
Publish the app, configure the production environment, and verify it works from a clean install.
What happens
- Production configuration and release build
- Google Play Store or Apple App Store submission
- Store listing setup and review response
- Final verification after publication
What you receive
- Live mobile application
- Published store listing
- 07
Training, Documentation & Handover
Leave your administrators able to run the app and your team with the documentation to maintain it.
What happens
- Administrator and end-user training
- Technical documentation and user guides
- Project handover
What you receive
- Training completion report
- Technical documentation and user guides
- Handover pack
- 08
Post-Implementation Support
Watch the app in real use, resolve what surfaces under warranty, and tune performance once actual usage data exists.
What happens
- Post-launch monitoring
- Issue resolution under warranty
- Performance optimization against live usage
What you receive
- Stabilized production environment
- Support reports
One dependency worth naming: app review
Apple and Google review every submission, and neither publishes a guaranteed turnaround. We build the app against both platforms' guidelines from the start, prepare the store listing properly, and handle reviewer correspondence — but the review window itself sits outside anyone's control, so we plan the go-live date with room in it rather than promising a date we cannot enforce.
Secure on the device, tested across the fleet
Mobile apps run on hardware you do not control, across OS versions you cannot dictate. Both realities are designed for rather than discovered in production.
Applied at every phase
Security framework
- Secure user authentication
- Role-based access control where applicable
- Encrypted data transmission
- Secure data storage on the device
- API security and session management
- Secure coding practices throughout
- Alignment with Android and iOS platform guidelines
- Data protection and privacy regulation compliance
- Application security controls and hardening
- Secure backend and cloud configuration
Before anything ships
Quality assurance
- Functional testing against approved requirements
- Usability testing on real task flows
- Compatibility testing across devices and OS versions
- Performance testing under expected load
- Security testing before store submission
- Cross-platform consistency testing
- User acceptance testing
- All defects resolved before production release
Why organizations build their app with i4
A mobile app is judged in the first thirty seconds and lived with for years. These are the things that decide how both go.
The approach chosen honestly
Native or cross-platform is decided with you at discovery, against your users' device split and the features the app depends on — not a preference we arrive with.
Designed before it is built
Wireframes, high-fidelity designs, and an interactive prototype your team can click through before development commits to anything.
Device capability used properly
Camera, GPS, biometrics, notifications, and offline access integrated where they earn their place, not because they demo well.
Secure by construction
Encrypted transmission, secure on-device storage, API security, and session management applied from the first sprint rather than audited at the end.
Through app review, not up to it
We handle Play Store and App Store submission, listing configuration, and reviewer responses, and stay on it until the app is actually live.
Kept working as platforms move
Android and iOS ship breaking changes every year. Maintenance covers OS compatibility updates and store release management.
