Mobile Apps
Built For Modern UK Users
Omitrex is a mobile app development company in the UK creating powerful, visually stunning iOS and Android apps with smooth performance, premium user experience and scalable architecture. From London startups to established UK brands, we build apps your customers love to use.
50+
Apps Built
Smooth
Experience
Secure
Infrastructure
Fast
Performance
App Features
Apps Designed For Speed And User Experience
Android & iOS Apps
Modern mobile applications designed for all major devices.
Fast Experience
Smooth performance with optimised user interactions.
Scalable Architecture
Applications built for long-term growth and expansion.
Secure Systems
Reliable, secure mobile app infrastructure.
Included Services
Complete Mobile App Solutions
We provide complete mobile application development from design to deployment.
ASO — App Store Optimisation
Built To Be Discovered, Not Just Built
Every app we build is prepared for the App Store and Google Play with App Store Optimisation (ASO) in mind: keyword-researched app titles and subtitles, a benefit-led description, a screenshot and preview strategy, and localised metadata for the UK market. This helps your app get discovered and downloaded, not just built.
FAQs
Mobile App Development — Frequently Asked Questions
How much does it cost to build an app in the UK?
Cost depends on features and platforms. Omitrex builds both iOS and Android apps and provides a fixed quote after a free consultation — get in touch for UK app development pricing.
Do you build for both iOS and Android?
Yes. Omitrex develops native and cross-platform mobile apps for iOS and Android, plus the admin dashboards and APIs behind them.
Will you help publish my app to the App Store?
Yes. Omitrex handles deployment and App Store Optimisation (ASO) so your app is ready to launch and get discovered on the App Store and Google Play in the UK.
Do you offer app maintenance after launch?
Yes. Omitrex provides ongoing app maintenance, updates and performance monitoring with UK-based support.
Ready To Build Your App?
Let’s create a fast, scalable and visually stunning mobile application for your UK business.
Contact Us NowDetailed Overview
How We Approach Mobile App Development
An app is not a website in a wrapper. It lives on a device with finite battery, patchy signal and a user who expects instant launch, offline tolerance and gestures that behave exactly as iOS and Android users already expect them to.
Omitrex builds for both platforms, choosing native Swift and Kotlin or cross-platform React Native and Flutter based on what the app actually does. Behind the interface we scope the part rarely quoted properly: the API layer, authentication, push, offline sync and the admin dashboard your team runs it from.
We plan for the release cycle from day one. Store review, staged rollouts, crash reporting and forced-update handling are configured before launch, so version 1.1 takes days rather than restarting the whole process.
What Sets The Build Apart
Native or cross-platform
We recommend the stack that fits the app, not the one that is quickest for us to build.
Backend scoped upfront
APIs, auth, push and admin tooling are priced from the start, never discovered mid-project.
Store submission handled
App Store and Google Play review, staged rollouts and crash reporting set up before launch.
Built for real conditions
Offline tolerance, background sync and battery behaviour tested on real devices, not simulators.
Our Process
From Idea To App Store
Four stages with a working build in your hands throughout, so nothing is a surprise at release.
Discovery & platform choice
Week 1–2We define the core user journeys, decide native or cross-platform on the evidence, and agree what version one must do to be worth shipping.
UI/UX design
Week 2–5Interface design that follows each platform's conventions, prototyped so you can tap through the real flow before development starts.
Development & testing
Week 5–12App and backend built in parallel, released to you through TestFlight and internal testing tracks every fortnight for real feedback.
Launch & iteration
Week 12 onwardsStore listings, review submission and a staged rollout, then sixty days of support while the first real usage data arrives.
Apps We Build
The Kinds Of Apps UK Clients Ask Us For
Commerce & booking
Ordering, reservations and payments with saved details and push reminders.
Internal & field apps
Job management and data capture for teams working away from a desk.
Health & lifestyle
Tracking, reminders and wearable integration with sensitive data handled properly.
Membership & community
Accounts, content, notifications and paid tiers for an existing audience.
Why Choose Omitrex
What Working With Us Is Like
App and backend from one team
No blame gap between the mobile developer and whoever built the API behind it.
You see it every fortnight
Test builds on your own phone throughout, so nothing is a surprise at handover.
Your accounts, your code
Store listings, repositories and infrastructure are registered to you from day one.
Related Services
Pairs Well With
Let's scope your app
Tell us what the app needs to do and we will come back with a platform recommendation, a fixed quote and a realistic release timeline.