App Development

Native and cross-platform mobile apps with delightful UX and solid performance.

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Rated 5/5 by 200+ happy clients
App Development by Promotion King
Overview

What we deliver

Put your business in your customers' pockets. We design and build fast, beautiful native and cross-platform mobile apps for iOS and Android that people love to use and keep coming back to.

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Benefits

Why it works

iOS & Android

One codebase, both platforms — faster to launch and cheaper to maintain.

Delightful UX

Intuitive, polished interfaces designed around real user journeys.

High Performance

Smooth, responsive apps that feel instant, even offline.

Engagement

Push notifications and features that drive retention and revenue.

What's Included

Everything you get, upfront

No surprises, no upsells. Every App Development engagement comes with a clear, complete package designed to deliver results and total peace of mind.

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  • A dedicated senior specialist for your project
  • Clear, fixed-scope quote with no hidden costs
  • A tailored App Development strategy for your goals
  • Weekly progress updates and transparent reporting
  • Full ownership of all work, code, and assets
  • 30 days of post-launch support included
Our Process

How we get you results

1. Discovery & Audit

We analyse your goals, market, and current performance to find the biggest wins.

2. Strategy

A clear, prioritised roadmap with timelines, KPIs, and measurable targets.

3. Execution

We design, build, and ship in agile sprints with weekly progress you can see.

4. Optimise & Scale

Continuous testing and reporting to compound results month after month.

Tools & Technologies We Use

Flutter
React
Android
iOS
Firebase
Figma
Pricing

Simple, transparent packages

Fixed-scope quotes, no surprises. Need something custom? Just ask.

MVP App

$3,999
  • iOS + Android
  • Up to 5 screens
  • Core features
  • App store submission
  • 1 month support
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Most Popular

Growth App

$7,999
  • iOS + Android
  • Custom UI/UX design
  • Backend + API
  • Push notifications
  • 3 months support
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Enterprise

Custom
  • Complex features
  • Real-time & offline
  • Third-party integrations
  • Dedicated team
  • Ongoing support
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Industries We Serve

Experience across every sector

We've delivered App Development results for businesses of every size and industry.

E-Commerce
Finance
Healthcare
Education
Real Estate
Hospitality
Travel
Technology
"Promotion King rebuilt our store and SEO from the ground up. Organic traffic tripled and sales followed. Genuinely the best agency we have worked with."
Sarah Mitchell Sarah MitchellCEO, GreenLeaf
FAQ

Good to know

Still have questions? We're happy to help.

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We recommend cross-platform (Flutter/React Native) for most projects — near-native performance at a lower cost — but build fully native when your needs demand it.

Yes, we handle the full submission process to the Apple App Store and Google Play.

Certainly — we can improve, redesign, or add features to an app you already have.

Let's get started on App Development

Book your free consultation today — no obligation, just a clear plan to grow.

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