Mobile App Development

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Apps Your Customers and Teams Will Actually Use

A mobile app is judged in seconds, not minutes. We design and build native and cross-platform apps that are fast, easy to use, and built around what your customers or field teams actually need to do.

Service Overview

At Calculate Capitals, we design and build mobile apps for iOS and Android, whether that’s a customer-facing app, an internal tool for field teams, or a companion app to a system we’ve already built you. We work in short sprints with regular demos, so you see the app taking shape every fortnight rather than waiting months for a first look. Every build includes UI design, development, testing across real devices, and support through App Store and Google Play submission.

What's Included

Every app project covers the full lifecycle, from the first wireframe through to a live listing on both app stores and the support period that follows.

Why Choose Calculate Capitals for Mobile App Development?

Most app projects go wrong on usability, not code. We fix that with a working prototype early, real-device testing throughout, and a named lead who takes the app all the way to launch.

Fixed Scope, Fixed Milestones

Costs and dates agreed before design work begins

Built for Your Users

Designed around how people actually use the app, not a template

One Team, Start to Finish

The people who scope it, build it

You Own the App

Full source code and store account access. No dependency on us to update it

Ready to Build Your App?

Tell us what you want the app to do and who it’s for. We’ll come back with a scope, a timeline and a fixed cost within a week.

25 Apps Launched
0 %
Delivered On Schedule
0 %
Clients on Ongoing Support

What Clients Say About Working With Our Developers

Operations leads and founders on the software we built and what changed afterwards.

Emma Richard
Emma Richard

Operations Manager

"The entire ERP transition was seamlessly handled. They took the time to understand our workflows and made sure the system was a perfect fit for how we operate"

Operations Director
Operations Director

Marketing Director

"We were counting stock by hand across four sites. Two months after go-live, our warehouse team stopped reconciling spreadsheets entirely."

Sophia Lewis
Sophia Lewis

Managing Director

"They customised the CRM we already owned instead of selling us a new one. That single decision saved us a year of migration work."

James Peterson
James Peterson

Founder

"Fortnightly demos meant no surprises. We saw the app taking shape every two weeks and launched on the date they gave us in week one."

Notes on Building Better Mobile Apps

Monthly notes on app design, development and what makes people actually keep using an app. Written for business owners, not developers.

Common Questions About Mobile App Development

Do you build for iOS, Android, or both?

Both, either natively or cross-platform depending on your budget and requirements. We recommend the right approach at the scoping stage based on what the app needs to do.

A focused first version typically runs three to four months from kickoff to store launch. Apps with heavier backend or integration work take longer. We fix the timeline at the planning stage.

Yes. Connecting a mobile app to an ERP, CRM or other backend you already run is common work for us, not a special request.

We handle the full submission process under your developer accounts, so the listings and ongoing control belong to you, not us.

We handle resubmission as part of the build. Most rejections are minor policy fixes, and we account for at least one review cycle in the project timeline.

A warranty period is included with every build. Most clients then move to a support agreement covering bug fixes, OS updates and new features, handled by the same team that built the app.