Mobile product studio · London

Apps your customers open every day.

Sedger plans, designs and builds iOS and Android applications for growing companies. We start with your business model, then write the code that supports it, and we stay on after launch.

Start a project iOS 16+ · Android 9+
React Native · Flutter · Swift · Kotlin

About us

Engineering and design under one roof

SEDGER LIMITED is a team of mobile engineers, product designers and analysts. We turn complicated requirements into applications that feel simple, load fast and keep user data safe.

We work as an extension of your team. In practice that means we:

  • Learn how your business works

    Revenue model, operations, customers and constraints come first, before any screen is drawn.

  • Find where the app can grow revenue

    We point out the features that move retention and conversion, and the ones that can wait.

  • Build products that scale with you

    Modular architecture, so new markets, users and features don't mean a rewrite.

Our mission

Help companies move their business onto mobile with products that pay for themselves: careful design, dependable engineering and support for as long as the app is live.

Our values

What we hold ourselves to

quality

Quality

Every release is tested, secure and fast on mid‑range devices, not only flagships.

clients

Client focus

Clear estimates, weekly demos and long‑term relationships over one‑off projects.

innovation

Innovation

We test new frameworks and platform features early, and adopt them when they prove useful.

craft

Professionalism

Attention to detail in every layout, every API call and every line of code.

integrity

Integrity

Open communication, honest timelines and ethical handling of your users' data.

Services

From the first idea to the store listing and beyond

Launching a startup, digitising internal workflows or building a customer loyalty app: we take the product from concept to release, then keep it running.

BUILD

Cross‑platform development

One codebase in React Native or Flutter that runs natively on iOS and Android. You reach both audiences for close to the cost of one.

  • Shared business logic, native performance
  • Native modules in Swift and Kotlin when needed
  • Store submission handled by us
DESIGN

UI/UX design and prototyping

Interfaces people understand on first use and want to return to.

  • User flows and wireframes
  • High‑fidelity mockups and design system
  • Clickable prototypes for user testing
PLAN

Strategy and consulting

Before development starts, we analyse the project and agree a plan tied to your business goals.

  • Goals, scope and success metrics
  • Target audience research
  • Competitor and market review
  • Monetisation model
RUN

Support and growth

We stay after release. Support covers OS updates, bug fixes, performance and security work, and new features as your product grows.

  • Crash and performance monitoring
  • Compatibility with each new iOS and Android version
  • Feature roadmap and iterative releases
01Discovery1–2 weeks
02DesignFlows, UI, prototype
03DevelopmentTwo‑week sprints, weekly demos
04ReleaseApp Store and Google Play
05SupportMonitoring and updates

Contact

Let's build your app

Tell us about your idea. We'll arrange a free consultation, review the project and suggest the best way to deliver it.

SEDGER LIMITED
Office 5902, 182–184 High Street North
East Ham, London, E6 2JA
United Kingdom