Mobile apps that work with the systems you already have

A mobile app is only as good as the system behind it. We build Android and iOS apps on top of a well-designed API, so your app, your website and your back office all work from the same data. Whether it's a customer app, an app for staff in the field, or a companion to an existing web platform, we plan the API first and the screens second.

What we deliver

Customer apps

Ordering, bookings, account history and notifications in your customers' pockets.

Field & staff apps

Attendance, task lists, site visits, photos and data capture, even with weak connectivity.

Companion apps

A mobile front end for an existing web application, using the same API and login.

Back-end API

A secure, versioned .NET API that your web and mobile apps share, with no duplicate business logic.

Installable web apps (PWA)

Your web application installed on phones like an app, with push notifications and no app-store wait. We ship this in RumiNest360.

Store publishing

Preparing listings, builds and releases for Google Play and the Apple App Store.

Technology we use

  • Android
  • iOS
  • Cross-platform
  • PWA / Web Push
  • ASP.NET Core Web API
  • Token-based authentication
  • SQL Server

How we work

A clear process from first call to launch

  1. Discover

    We understand your goals and agree a written scope, timeline and price.

  2. Design

    Screens, data and architecture are planned before any code is written.

  3. Build

    Working releases in short cycles that you can try and review.

  4. Launch & support

    Deployment, training and ongoing support once you go live.

Mobile App Development: common questions

Do I need a separate app for Android and iOS?

Not necessarily. Depending on your needs we can build one cross-platform app for both, which usually lowers cost and time to launch.

Can the app use our existing website's data?

Yes. We build or extend an API so the app and the website share the same database and rules.

Other services

Have a project in mind?

Tell us what you want to build. We reply within one working day with honest advice and next steps, with no obligation.