Software & Apps
Mobile App Development Services in London
Native Android apps and cross-platform Flutter builds designed to turn casual visitors into repeat customers, from first sketch through to app store launch.
What does ITSL's Mobile App Development service include?
ITSL designs and builds native and cross-platform mobile apps for London businesses, using Android and Flutter, and handles the full app store submission and deployment process.
A mobile app can turn casual customers into repeat customers, but only if it is fast, reliable and genuinely useful — which is why we start every project by asking what the app needs to do for your customer, not just what it should look like.
ITSL builds both native Android applications and cross-platform apps with Flutter, so we can recommend the right approach for your budget and audience rather than defaulting to one technology.
Key benefits of Mobile App Development
- Native Android development for maximum performance and device integration
- Cross-platform Flutter development to launch on Android and iOS from a single codebase, reducing cost
- Full app store deployment support, including listings, screenshots and compliance requirements
- Push notifications, offline functionality and secure login built in where needed
- Post-launch support for updates, bug fixes and new feature rollouts
How ITSL delivers Mobile App Development
- 1
Concept & wireframes
We define core user journeys and screen flows before any code is written.
- 2
Prototype
A clickable prototype lets you and your team test the experience early and cheaply.
- 3
Development
We build the app in Android or Flutter with regular test builds delivered for feedback.
- 4
Store launch & support
We submit to Google Play and/or the App Store and remain on hand for updates.
Tools & technologies we use for Mobile App Development
- Flutter
- Kotlin
- Android Studio
- Firebase
- Google Play Console
- App Store Connect
How much does Mobile App Development cost?
Mobile app projects are quoted individually based on platform and feature set — book a free consultation for an accurate estimate.
FAQs about Mobile App Development
Should my business build a native app or a cross-platform app?
If you need to launch on both Android and iOS with a limited budget, Flutter cross-platform development is usually the better choice. If performance or deep device integration is critical, native Android development can be worth the extra cost. We advise on this during your free consultation.
How much does mobile app development cost?
Costs vary by feature set and platform, so ITSL quotes mobile app development separately after a short scoping call. A simple booking or ordering app costs considerably less than a full marketplace platform.
Does ITSL handle app store submission?
Yes, we manage the entire submission process for Google Play and the Apple App Store, including store listings, screenshots, privacy declarations and review responses.
Can ITSL update an existing mobile app rather than building a new one?
Yes, we regularly take over existing Android or Flutter apps, audit the codebase, and add features or fix issues without needing to rebuild from scratch.
Does ITSL handle ongoing app maintenance after launch?
Yes, post-launch support for updates, bug fixes and operating system compatibility is available as an ongoing plan alongside the initial build.
Ready to discuss Mobile App Development?
Book a free consultation with ITSL or check our pricing packages to get started.