Service
Mobile App Development Services
We build native and cross-platform mobile applications for businesses worldwide, covering Android, iOS, React Native and Flutter from one team.
- Native Android and iOS
- Cross-platform builds
- API and backend integration
Overview
Mobile Development at 24Square Technologies
24Square Technologies designs, builds and maintains mobile applications for businesses worldwide. Depending on your feature list, audience and budget, that may mean a native Android or iOS app, or a single cross-platform codebase built with React Native or Flutter. Our mobile app development services cover the full route from planning through to release and ongoing support.
We advise on the right approach before development starts, then handle architecture, interface, API integration, testing on real devices and the full store release process. Everything is handed over with documentation so your team can maintain it.
Almost every app needs a backend. Where you do not already have one, we build the APIs, authentication and admin tooling as part of our API development and integration work, so the app and any web product you run share the same data rather than drifting apart.
If the app is a new idea rather than a replacement for something existing, it is often quicker to start with MVP development and prove the core journey with real users before building the full feature set.
Problems this service solves
- Apps that only perform well on newer, higher-end devices
- Features arriving on one platform months before the other
- Rejections or delays during App Store or Play Store review
- Crashes, battery drain and poor behaviour on weak connections
- Two separate codebases and teams for one product
Capabilities
Key capabilities and deliverables
What is included when you engage us for this service.
Native Android and iOS
Kotlin and Swift applications built to each platform's standards.
Cross-platform builds
React Native and Flutter apps sharing one maintainable codebase.
API and backend integration
Secure connections to your APIs, CRM and third-party services.
Offline and sync behaviour
Local storage and synchronisation for unreliable networks.
Store release management
Listings, TestFlight and staged Play Store rollouts.
Monitoring and maintenance
Crash reporting, analytics and ongoing support after launch.
Capability
Android Development
Android covers an enormous range of devices, screen sizes and versions, so we design for that range from the start rather than testing only on flagship hardware.
- Native Android applications in Kotlin with modern architecture
- Android interface work following Material Design guidance
- API integration, offline storage and background sync
- Google Play listing, staged rollout and release management
- Performance tuning across mid-range and older devices
- Device testing, crash monitoring and ongoing maintenance
Capability
iOS Development
iOS users expect apps to behave in a particular way. Following Apple's interface and privacy expectations closely is the difference between an app that feels native and one that feels ported.
- Native iPhone and iPad applications in Swift and SwiftUI
- Adaptive layouts built to Apple's design standards
- API integrations, permissions and App Privacy declarations
- App Store preparation, TestFlight betas and submission
- Performance checks on every supported device generation
- Post-release monitoring and ongoing support
Capability
React Native Development
React Native suits products where most functionality is shared between platforms and speed to market matters. Where a feature genuinely needs platform-specific behaviour, we write native modules rather than forcing a compromise into shared code.
- Cross-platform applications from a single codebase
- One release covering both iOS and Android
- API integrations shared with your web product where sensible
- Native modules for device capabilities when required
- Startup, navigation and list rendering performance tuning
- Faster development cycles and lower maintenance cost
Capability
Flutter Development
Flutter renders its own interface, which makes it a strong choice when a brand needs the same custom design on every platform without per-platform rework.
- Flutter cross-platform apps for iOS and Android
- Consistent, highly polished custom user interfaces
- Structured state management with Riverpod, Bloc or Provider
- Custom integrations through packages and platform channels
- Smooth animation and transition performance
- Scalable architecture and automated store releases
Business benefits
What this service changes for your business
The practical results clients look for when they invest in this work.
- The right platform strategy for your budget and roadmap
- Consistent behaviour across iOS and Android devices
- A predictable, low-risk release process
- Clear visibility of how people use the app
- A maintainable, documented codebase you own
Technology
Technologies we use for mobile development
The platforms and tools we most often use on this type of project.
Native
- Kotlin
- Jetpack Compose
- Swift
- SwiftUI
Cross-platform
- React Native
- Expo
- Flutter
- Dart
- TypeScript
Services
- Firebase
- REST APIs
- GraphQL
- Push notifications
Why us
Why choose 24Square Technologies for mobile development
Practical reasons clients continue working with us after the first project.
Experienced development team
Designers and developers who have delivered websites, platforms and mobile applications across several industries.
Flexible engagement models
Work with us on a fixed scope, a retainer or a dedicated resource basis.
Clear project communication
Scheduled updates, shared boards and direct access to the people building your product.
Quality-focused development
Code reviews, testing and performance checks are part of delivery, not an afterthought.
Solutions aligned with business goals
Every decision is measured against the outcome you are trying to achieve.
Support after launch
Ongoing improvements, bug fixes and technical guidance once you are live.
FAQs
Mobile Development FAQs
Cannot see your question here? Send it over and we will answer directly.
- Should we build native or cross-platform?
- Native suits apps that lean heavily on device features or performance. Cross-platform suits teams shipping to both platforms from one codebase. We advise based on your feature list, audience and budget before development starts.
- React Native or Flutter?
- Flutter suits highly custom, design-led interfaces. React Native suits teams already invested in the JavaScript and React ecosystem, particularly where logic is shared with a web product.
- Do you publish the app to the stores for us?
- Yes. We prepare listings, handle submissions and manage staged rollouts under your own Apple and Google developer accounts, which we recommend stay in your company's name.
- Can you take over an existing mobile app?
- Yes. We start with a code and architecture review, then agree a plan for fixes, maintenance and further development.
- Do you support the app after launch?
- Yes. Support covers crash monitoring, analytics, operating system updates, store compliance and further feature development.
Keep exploring
Related services and hiring options
Related services
Hire dedicated resources
Need extra capacity instead of a fixed-scope project? Add developers or designers who work to your priorities, in your tools, on full time, part time or hourly terms.
Explore hiring optionsNext step
Start your mobile development enquiry
Tell us about your project and we will respond with a practical approach, indicative timeline and the information we need to quote.