App Development

App development without the handoffs that kill most projects

Strategy, design, and build in one team. No brief crossing a company boundary, no developer receiving a design nobody checked was buildable.

From $1,500 per project You own the code and the store listings iOS, Android, and cross-platform

Why app projects overrun

Most failed apps didn't fail at the coding stage

They failed at the seams, where one company handed something to another and assumptions went missing.

01

Designed by people who don't build

Screens that look excellent in a presentation and turn into a three-week argument the moment a developer opens the file and asks what happens when the list is empty.

02

Scope agreed in a conversation

Nobody wrote down what version one actually includes, so every fortnight brings a new feature that was apparently always part of it.

03

Built for a launch, not for a year later

It shipped. Then the first OS update broke it, nobody documented anything, and the original developer isn't answering.

04

Nobody asked if it needed to be an app

A responsive site would have done the job for a fraction of the cost, but the agency was never going to be the one to say that out loud.

What we build

Native where it matters, cross-platform where it doesn't

The right approach depends on what the app does, not on what's currently popular.

Technologies we work with

Swift Kotlin React Native Flutter Node.js Firebase Supabase REST & GraphQL APIs Stripe Push notifications App Store Connect Google Play Console

For most business apps, cross-platform is the sensible answer. Native makes sense when you're pushing the hardware or when the experience has to feel completely at home on one platform. We'll tell you which situation you're in before you commit a budget.

What you get

What's included in an app project

Scope varies enormously between projects. These run through all of them.

Planning and design

  • Scoping workshop to define what version one is and what it deliberately isn't
  • User flows mapped before any screen gets designed
  • UI design for every screen, following the platform's own conventions
  • Prototype you can tap through before development starts
  • Technical specification covering the stack, the backend, and every integration

Build and launch

  • Development in sprints with a working build in your hands every two weeks
  • Backend and API built or integrated with whatever you already run
  • Testing on real devices, not just simulators on a developer's laptop
  • Store submission handled, including the rejections that come with it
  • Source code and documentation handed over in full at the end

How we work

Ship something small before building something large

The fastest way to waste a year is to build every feature before anyone has used the first one.

STEP 01

Discovery call

What the app is for, who uses it, and whether it needs to be an app at all.

STEP 02

Scope and spec

Version one written down in detail, with a fixed quote and a list of what's deferred.

STEP 03

Design and prototype

Flows, screens, and a clickable prototype you approve before code gets written.

STEP 04

Build in sprints

A testable build every two weeks. You see progress rather than waiting for a reveal.

STEP 05

Launch and support

Store submission, launch monitoring, then handover or an ongoing support plan.

Designers and developers sit on the same team here. Nothing gets designed that can't be built, and nothing gets quietly simplified during development because a screen turned out to be impractical.

Investment

What app development costs

Quoted against a written scope, with a clear list of what's in and what's deferred.

The range here is genuinely wide

A simple utility app and a marketplace with payments, messaging, and two user types are not remotely the same project. We won't pretend otherwise with a package price. The starting figure covers focused, single-purpose builds.

What moves the number: how many screens, whether you need a backend built from scratch, how many third-party integrations, whether it's native or cross-platform, and whether both stores are in scope.

Starting from

$1,500

per project

Final pricing quoted against a written scope after the discovery call.

Get a scoped price

Worth knowing

Plenty of businesses don't need an app

An app is one of the most expensive things you can build and one of the hardest to get people to install.

An app makes sense if

  • People will use it repeatedly rather than once, which is what justifies an install
  • You need device features a browser can't reach, like offline data or background location
  • Push notifications are core to how the product works, not a nice extra
  • You already have an audience who would download it, rather than hoping to find one
  • The app is the product, and revenue comes from usage rather than from a website

Build something else if

  • It would mostly display content. A fast responsive site does that better and reaches more people
  • Customers buy from you once or twice a year. Nobody installs an app for that
  • You want one because competitors have one, without knowing whether theirs gets used
  • There's no budget left for maintenance. An unmaintained app breaks within a year
  • You haven't validated that anyone wants this yet. A web version tests it far more cheaply

Common questions

Questions we get on app calls

Eight to twelve weeks for a focused first version. Anything with multiple user types, payments, or real-time features runs longer, often considerably.

We give you a sprint plan with the quote so you can see what lands when rather than waiting in the dark.

Cross-platform for most business apps. One codebase, both stores, roughly half the ongoing maintenance cost, and the performance gap has closed enough that users won't notice.

Native when you're doing heavy graphics, complex camera work, tight hardware integration, or when one platform is where essentially all your users are.

Yes, all of it. The app publishes under your own developer accounts, not ours, and the source code is handed over with documentation.

Agencies that publish client apps under their own account are creating leverage over you. Ask anyone who has tried to move an app to a new developer afterwards.

Apps need ongoing work in a way websites don't. Both platforms release major updates every year and will eventually stop accepting builds made with older tools.

We offer a support plan covering OS compatibility, bug fixes, and store requirements. If you'd rather handle it in-house, we document everything so another team can pick it up.

Yes, and it happens on a fair number of these calls. Often a progressive web app or a well-built responsive site does the job for a fraction of the cost and reaches people who would never install anything.

We build websites too, so recommending one instead doesn't cost us the work.

Usually. We start with a code review to see what condition it's in and tell you honestly whether it's worth continuing or whether a rebuild ends up cheaper.

Sometimes inherited code is fine and just needed documenting. Sometimes it genuinely isn't, and we'd rather say so before taking your money to maintain it.

Work out what version one should actually be

Thirty minutes on your idea. We'll tell you the platform, the realistic timeline, and whether an app is the right build at all.

Or email hello@culmen.digital
Book a free app call