{mobile apps}
iOS and Android apps from a single codebase.
We build React Native apps that feel native on iOS and Android, connected to your backend and your systems. One codebase means lower cost and faster delivery without compromising on quality.
// keycode systems
export default defineService({
name: "Mobile apps",
stack: ["React Native", "Expo"],
owner: "your company",
docs: true,
tests: true,
}){what's included}
Everything you need, end to end.
01
Mobile product design
Interfaces that follow each platform's conventions and feel natural.
02
iOS and Android
A single codebase with React Native and Expo for both platforms.
03
Backend connection
APIs, authentication and data sync, offline included.
04
Push notifications
Targeted messages, delivered at the right moment.
05
App store publishing
We handle the whole process on the App Store and Google Play.
06
Fast updates
Quick fixes and improvements without always waiting on store review.
{use cases}
Problems we solve all the time.
- A customer app for bookings, orders or loyalty.
- An app for field teams: inspections, work reports or routes.
- The mobile version of your web platform or SaaS.
- A working prototype to validate an idea with real users.
{process}
A clear process, no surprises.
You always know what we're working on, why, and when you'll see it.
01
Discovery
We learn your business, your workflows and the real problem. Then we define scope, priorities and budget.
02
Design
Technical architecture, user flows and a clickable prototype before a single line of code.
03
Development
Short sprints with frequent demos. You see real progress, not status reports.
04
Launch
Testing, automated deployments and a smooth go-live.
05
Evolution
Support, improvements and new features as your business grows.
{faq}
Questions we often get.
Why React Native instead of fully native development?
For the vast majority of apps, React Native delivers a native experience from a single codebase. If your app needs something very device-specific, we'll evaluate it and tell you.
Do you handle publishing the app?
Yes. We prepare the store listings, screenshots and the whole App Store and Google Play review process.
Does the app work offline?
If your use case needs it, we design local storage and sync so it works without a connection.
Can we reuse what we already have on the web?
Yes. If you already have an API or a web app, the mobile app builds on it and we share logic wherever possible.
{other services}
Everything connected, one team.
Integrations
We connect your CRM, ERP, e-commerce, payment gateways and internal tools so data flows on its own. Less manual work, zero duplicate records.
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Custom APIs
Secure, documented and versioned REST and GraphQL APIs, ready for other teams to build on.
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Web applications
Dashboards, customer portals and internal tools. Fast, accessible and easy to maintain.
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SaaS platforms
Multi-tenancy, subscriptions, roles and billing. From MVP to production without a rewrite.
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AI agents
LLM-powered assistants and agents connected to your systems and documents: they answer customers, query your ERP or CRM and carry out tasks, with human oversight where it matters.
View service
AI automation
We extract data from invoices, PDFs and emails, classify requests and route them into your systems with no manual typing.
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{contact}
Have a project in mind?
Tell us what you need. We'll get back to you with focused questions, a proposed approach and an initial estimate.
- Keycode Systems ↗