Mobile apps your customers and field teams actually keep
Native iOS apps in Swift and Android apps in Kotlin, or cross-platform where it fits. We build customer and staff apps around the device capabilities, integrations and offline tasks your users need.
What mobile app development covers
Native iOS and Android
Our default. Apps designed for each platform and the device capabilities your project needs. Ongoing compatibility work is covered by the agreed maintenance arrangement.
iOS in Swift
Swift, SwiftUI, Combine and Swift Concurrency for a sleek, responsive app on iPhone and iPad.
Android in Kotlin
Kotlin, Jetpack Compose, Coroutines, Dagger and Gradle for phones, tablets and wearables; Java where a legacy codebase needs it.
Device capabilities
Camera, GPS, scanning, notifications, biometrics and offline storage used directly, not through a bridge.
Store release
We prepare and manage store submissions in your accounts. Store review is a release dependency; ongoing updates are scoped separately.
Cross-platform when it fits
One codebase for both stores, chosen when it saves you money without costing your users the experience.
Flutter and React Native
Complete apps from a single codebase for content, self-service and internal tools.
Kotlin Multiplatform and Compose Multiplatform
Share business logic, and where sensible the UI, between native iOS and Android apps.
When we recommend it
Apps where shared code reduces development and maintenance effort while meeting the required experience and device needs.
When we do not
Hardware-heavy, performance-critical or platform-specific apps go native, and we say so before you decide.
Customer-facing apps
Apps people install because they make dealing with you easier.
Accounts and self-service
Orders, bookings, documents and payments from the phone.
Notifications
Push messages for the events customers care about, not noise.
Payments and subscriptions
In-app purchases, card payments and recurring billing done correctly.
Store release
We prepare and manage store submissions in your accounts. Store review is a release dependency; ongoing updates are scoped separately.
Field & operations apps
Tools for people who work away from a desk.
Offline-first workflows
Agreed jobs, checklists and forms work without signal and sync later; live-service features may still need a connection.
Camera, GPS and scanning
Photos, signatures, location stamps and barcode or QR scanning.
Task and job management
Assignments, status updates and history visible to the office.
Device management
Managed distribution for company phones and rugged devices.
Existing apps
Not every project starts from zero. We also take on apps built by someone else.
Mobile app optimisation
Startup time, battery, memory, app size and jank measured and fixed.
Code refactoring
An ageing codebase brought up to current Swift, Kotlin or cross-platform standards without a rewrite.
Maintenance & support
OS updates, dependencies, store compliance and small improvements on an agreed cadence.
QA consulting
Test strategy, automation and device coverage for your own team.
The kind of work we take on
Choose a project to explore an app concept.
Self-service for orders, bookings and accounts.
Let customers book a service, follow an order and manage their account in one place.
Jobs, checklists, photos and signatures on site.
Give field teams the job details, checklists and evidence capture they need on site, with offline tasks scoped around the work.
Routes, proof of delivery and live status.
Bring the next stop, delivery instructions and proof of delivery into one clear journey.
Structured reports with evidence attached.
Guide an inspection, capture findings and attach evidence before sending the report for review.
A mobile front end for your existing platform.
Put the useful parts of your existing platform on a phone, with relevant updates and actions for people away from their desks.
Optimise, refactor and support an existing app.
Review an existing app, improve the journeys that matter and agree a practical plan for reliability, maintenance and future releases.
What changes when it is built properly
Without Dexcode
The wrong platform choice
Cross-platform picked to save money, then rewritten when the app needs the hardware.
Useless without signal
Field apps that stop working on site.
Paper still wins
Forms that are slower on the phone than on a clipboard.
Store rejection surprises
Release delays from guidelines nobody read.
With Dexcode
Native by default, shared where it pays
Swift and Kotlin apps that feel at home on each device; Flutter, React Native or Kotlin Multiplatform only when one codebase clearly saves you money.
Key tasks work offline
We agree which tasks and data work offline, how they sync and which features still need connectivity.
Faster than paper
Flows designed around the job, tested with the people doing it.
Release handled
Submissions managed in your company’s store accounts, with review dependencies explained and ongoing updates agreed separately.
How scope shapes your timeline
Platform coverage, backend work and device behaviour shape the schedule. Start with a focused release, then scope any wider rollout.
- One native platform
- 6–10 weeks
- Core tasks on iOS or Android, with an existing API or simple backend. Includes discovery, design, device testing and release preparation.
- iOS and Android
- Scoped after discovery
- We compare separate native apps with a shared Flutter or React Native codebase, then account for platform-specific work and testing on both platforms.
- More complex mobile product
- Planned in phases
- Offline synchronisation, device integrations or substantial backend work needs a separate estimate for the agreed first release.
Indicative timing to a release-ready app and handover. Store approval is separate; we confirm your scope and schedule during planning.
How a mobile app development project runs
A focused first native release on one platform has a planning range of 6–10 weeks, from kickoff to a tested, release-ready app and handover. This assumes core tasks and an existing API or simple backend. Store approval is a separate dependency; complex offline work or a second platform needs separate scoping.
Discover
Who uses the app, where, and on what devices.
- Field observation or user interviews
- Device, connectivity and security constraints
- Integration requirements
- Scope and platform decision
- Estimate
What we build mobile app development with
Chosen for longevity and hiring, not novelty. We explain any alternative where the choice matters for your project.
Questions about this service
We start with the devices your users actually have and the tasks the app must support. For a staff app, the devices your company issues may decide the first platform. For a customer app, audience data and budget help determine whether to launch on both or begin with one. We explain the implications of adding another platform later.
Ready to talk about mobile app development?
Tell us what you are trying to achieve. In a free 30-minute strategy call, we discuss whether this service fits and what the next step would involve. Any discovery work starts with an agreed proposal.