MOBILE APP DEVELOPMENT

Mobile app development for iOS and Android

We build iOS and Android apps with React Native and Flutter, alongside native development in Swift and Kotlin. We help choose the technology for your features, budget, and long-term plans, then develop your app from MVP through release and ongoing updates.

Start a projectSee our work
pk@developer: ~/mobile-apps

$ compare ./technologies

Native or cross-platform: choosing your approach

We consider your integrations, interface, existing code, and maintenance needs before choosing a technology. Each approach supports iOS and Android, with platform-specific work where your product needs it.

Native development with Swift and Kotlin

We build iOS apps with Swift and SwiftUI, and Android apps with Kotlin and Jetpack Compose. This approach suits products that need extensive work with platform-specific features and interfaces.

React Native app development

We develop iOS and Android apps with React Native and a shared codebase. We account for platform differences, integrate APIs, and build native modules when your app needs them.

Numina — a React Native app

Flutter app development

We build iOS and Android apps with Flutter and Dart using a shared codebase. We design the interface, connect APIs, and test the app on both platforms.

$ ls ./deliverables

iOS and Android apps: scope of work.

We agree on the deliverables for your project. These are the areas we can help with.

App features and integrations

We connect your app to APIs and device features, adapting the implementation to your chosen technology and the requirements of each platform.

Scalable architecture

We organize the code into testable modules and set up CI/CD early, making it easier for engineers to join and extend the app.

Offline & sync

We implement local storage, conflict resolution, and background synchronization so the app can work with an unreliable connection.

Security and authentication

We implement secure credential storage, biometric authentication, and encrypted data storage, with a security review before each release.

Analytics & experiments

We set up event tracking and feature flags so you can evaluate product changes through usage data and experiments.

Store launch & updates

We manage store submissions, phased rollouts, and a release process for delivering improvements after launch.

$ ./build --steps

How we approach the work.

We plan the scope with you and review progress together as the work develops.

  1. Product and technical planning

    We agree on the first release and an architecture that can support the product as it grows.

  2. Flows & prototype

    We prototype the main user journeys so you can review them before development.

  3. Engineering sprints

    We work in two-week sprints and share a working build every Friday for your review.

  4. QA & security

    We test across devices, monitor crashes, and review security before launch.

  5. Launch & iterate

    We release in stages, monitor usage and stability, and plan the next improvements.

$ cat stack.json

The tools behind the work.

  • Swift
  • Kotlin
  • React Native
  • Flutter
  • SwiftUI
  • Jetpack Compose
  • Firebase
  • GraphQL

$ pk --outcomes

What we focus on.

pk@developer: ~ $ pk --outcomes mobile-apps

99.9%

target for crash-free sessions

MVP and beyond

architecture planned for future development

Every sprint

a working build you can review

$ man mobile-apps

Questions, answered.

We review your required integrations, interface, existing code, and maintenance plans. Swift and Kotlin suit extensive platform-specific work. React Native and Flutter let us share code across iOS and Android while handling platform differences where needed. We recommend an approach after reviewing your product requirements.

Yes. We build React Native apps for iOS and Android, connect APIs and device features, and test on both platforms. We support store submissions and ongoing updates, adding native modules when the product needs them.

Yes. We develop iOS and Android apps with Flutter and Dart, from interface design and API integrations to testing and store release. We also maintain the app and deliver updates after launch.

Yes. We start by reviewing the code and architecture, then address build problems and crashes. From there, we improve the app in stages. We consider a full rewrite when the existing code gives us a reason to do so.

We use automated tests, build and release pipelines (CI/CD), device-farm testing, and crash monitoring. Each code change goes through review. These checks run throughout development, so we can address problems as the app takes shape.

You own the app’s code. We hand over the repositories, documentation, and infrastructure, and can train your team to continue the work.

$ ls ../related

Mobile UX/UI design

AI and machine learning

App store optimization

$ ./start_project --service apps

Talk to us about
iOS and Android apps.

Tell us what you need help with. We will discuss the scope, timing, and cost.

Discuss your projectAll services