Custom App Development
Software built around the way you work.
When off-the-shelf software doesn't fit, we build what does. NXAPP designs and develops secure web apps, mobile apps and AI-powered tools — the same way we build our own NX product family.
What you get
Everything Custom App Development covers.
Discovery & product design
We turn your idea or process into a clear specification, user journeys and designs before development begins.
Web applications
Secure, scalable web apps and client portals with proper authentication, permissions and data protection.
Mobile apps
iOS and Android apps that share a codebase with your web app, so they're faster to build and easier to maintain.
AI features
Assistants, document processing, search and automation built on leading AI models — with guardrails and human review.
Integrations & APIs
Connect your app to payments, email, Microsoft 365 and the other systems your business already relies on.
Support & iteration
Hosting, monitoring, security updates and new features after launch, as your users' needs evolve.
How it works
A clear path from day one.
Shape
Workshops to define the problem, the users and the smallest version worth launching.
Design
Clickable designs and a technical plan, so you see exactly what you're getting before build starts.
Build
Short development cycles with regular demos, so you can give feedback early and often.
Launch & grow
A secure launch, then continuous improvement based on how people actually use it.
Why Custom App Development
Built around the way you work.
We don’t just talk about software — we build it. The NX product family, from security intelligence to business operations and AI assistants, was designed and developed in-house by the NXAPP team.
Custom App Development brings that same capability to your business. Whether it’s a customer portal, an internal tool that replaces a tangle of spreadsheets, or an AI feature that saves your team hours every week, we build it properly:
- Security first. Authentication, permissions and data protection are designed in from the start.
- Built to be used. Simple, fast interfaces your team and customers will actually adopt.
- AI with judgement. We use AI where it clearly helps, with sensible checks, and avoid it where it doesn’t.
- Supported for the long term. Launch is the beginning — we host, maintain and improve what we build.
FAQs
Questions, answered.
Do we own the software you build?
Ownership and licensing are agreed in your contract before work starts, so there are no surprises about who owns the code and data.
Can you add AI to our existing software?
Often, yes. We review your system and data, then recommend where AI can add genuine value safely — and where it can't.
What technology do you use?
Modern, widely supported web technologies, secure managed databases and global hosting. We choose tools that keep your app fast, secure and affordable to run.
How much does a custom app cost?
It depends on scope. We usually recommend starting with a focused first version, then growing it — and we'll give you a clear estimate after discovery.
Let’s talk
Let’s talk about Custom App Development.
Tell us where you are today and where you want to be. We’ll show you exactly how we’d get you there.