KKingstown

Mobile Applications (iOS & Android)

Apps that work on every phone and every network.

We build apps that stay quick on mid-range Android phones and patchy networks, with offline support, push notifications and payments built in.

Typical timeline 8–14 weeks · we reply within one business day

Our standard on every build

Targets
99.5%
Crash-free
80%
Test coverage
100%
Offline-ready
Cold start
< 2s
Minimum Android
v8+
What we build

Mobile Apps we deliver

Concrete deliverables, not buzzwords. If you do not see what you need, ask us.

iOS and Android apps

One codebase, two stores, native look and feel.

Customer apps

Ordering, booking, wallets and loyalty apps your customers keep.

Field and staff apps

Offline-first apps for sales agents, riders and field teams.

App backends and APIs

Secure servers, admin panels and integrations behind your app.

Store launch

We handle App Store and Play Store listings and approvals.

Our approach

From first call to launch

Typical timeline: 8–14 weeks
  1. 1Week 1–2

    Discover

    Users, key journeys, features and a fixed quote.

  2. 2Week 2–5

    Design

    Clickable prototype you can test on your phone.

  3. 3Week 5–12

    Build

    Test builds on your phone every week.

  4. 4Week 13–14

    Launch

    Store submission, monitoring and handover.

Tech stack

Proven tools, chosen for the long run

Modern, widely used technology, so your product is easy to maintain and hire for.

  • React Native

    Framework

  • Expo

    Tooling

  • TypeScript

    Language

  • Firebase

    Backend

  • Node.js

    API

  • PostgreSQL

    Database

  • Paystack

    Payments

  • Sentry

    Monitoring

Engagement models

Flexible ways to work together

Start with a fixed project, then move to a team or retainer as you grow.

Best for clear requirements

Fixed-Scope Project

An agreed scope, timeline and price, delivered in milestones.

Ideal for

Websites, MVPs and well-defined features

  • Fixed price and timeline
  • Milestone-based payments
  • Weekly progress demos
Discuss this model
Most popular

Dedicated Engineering Pod

A full team of engineers and a designer working only on your product.

Ideal for

Growing products with a long roadmap

  • Product manager, designers and engineers
  • Scale the team up or down
  • Works in your tools and rituals
Discuss this model
Best after launch

Monthly Retainer & SLA

Ongoing support, fixes and improvements for a fixed monthly fee.

Ideal for

Live products that need care and upgrades

  • Guaranteed response times
  • Monitoring and security updates
  • Hours for new features
Discuss this model

Every project is quoted on scope. Book a free call and get a fixed price within 48 hours.

Get a quote
FAQ

Questions we often hear

Do I need separate iOS and Android apps?

Usually not. We build one cross-platform app that runs on both, which saves time and money.

How much does an app cost?

It depends on features and integrations. After a discovery call we send a fixed quote you can plan around.

Will it work on cheaper phones and bad networks?

Yes. We test on mid-range Android phones and design key features to work offline and sync later.

Do you publish the app to the stores?

Yes. We prepare listings, screenshots and handle the review process for both stores.

Who owns the code?

You do. Code, designs and store accounts are yours once the project is paid for.

Can you take over an existing app?

Yes. We start with a short code review, then fix, improve or rebuild as needed.

We reply within one business day

Have a project in mind?

Tell us what you want to build. We will come back with clear next steps, a timeline and a price range.