Digital Products & Engineering · Android development

Kotlin apps that work across the Android landscape

We build native Android apps in Kotlin and Jetpack Compose that run reliably on everything from budget phones to tablets and foldables, and ship cleanly through Google Play.

  • Jetpack Compose UI
  • Clean architecture
  • Background work done right

Overview

Building for the full range of Android devices

Android runs on thousands of device models, from flagship phones and foldables to budget handsets, tablets and rugged scanners. That breadth is its strength and its challenge. A native Kotlin app with Jetpack Compose gives the best control over performance, background work and hardware access, and lets the interface adapt to screen sizes and manufacturer differences that cross-platform tools sometimes struggle with.

Important decisions include the minimum Android version to support, which device categories matter, whether the app needs Google Play services or must also run on devices without them, how background tasks and notifications behave under battery restrictions, and how purchases flow through Play Billing. Enterprise apps add questions about managed devices, kiosk modes and distribution outside the Play Store. Each needs a clear answer.

A strong Android app follows Material Design conventions, starts quickly on modest hardware, survives configuration changes and process restarts without losing data, and stays current with Google Play’s target API requirements. It also handles the realities of the Play Store: data safety disclosures, staged rollouts, Android vitals monitoring and yearly target SDK updates, so the app stays visible and installable as Google’s requirements change.

Who it’s for

Built for teams like yours

  • 01

    Brands with Android-leaning audiences

    Businesses whose customers mostly use Android phones, often across a wide price range, and who need an app that runs well on modest hardware as well as flagships.

  • 02

    Companies equipping field teams

    Organizations issuing rugged Android devices, scanners or tablets to staff, needing apps with barcode scanning, offline data and managed deployment through mobile device management. Apps must work reliably all shift long.

  • 03

    Hardware and IoT makers

    Manufacturers building devices that run Android or pair with it over Bluetooth, USB or NFC, where native access to hardware APIs is essential for reliable behavior.

Why it matters

Built for the variety Android brings

Android runs on thousands of device models with different screen sizes, memory limits, OS versions and manufacturer customizations. An app that works on one flagship can stutter or crash elsewhere. We build in Kotlin with modern Android architecture, test on a realistic device mix and tune performance so the experience holds up for all of your users, not just some.

Your app is published under your own Google Play Console account, with the app signing key, store listing, crash reports and source code fully in your hands, so you are never dependent on us to ship an update.

Every engagement includes

  • Discovery & scopingwe agree on features, minimum Android version and the device range you must support.
  • Interface designMaterial-based prototypes you can click through before any code is written.
  • Kotlin developmentapp, data layer and API connections engineered together with code review.
  • Quality assurancetesting on real devices and emulators, including slow networks and older OS versions.
  • Google Play releaselisting, data safety form, staged rollout and signing set up in your account.
  • Handoverrepository, documentation and release instructions, with an optional care plan for ongoing updates.

Features

What goes into our Android builds

  1. 01

    Jetpack Compose UI

    Material Design interfaces built in Compose that adapt to phones, tablets, foldables and different display densities.

  2. 02

    Clean architecture

    MVVM structure with Kotlin coroutines, Room storage and dependency injection, making the code testable and easier to extend.

  3. 03

    Background work done right

    WorkManager tasks, foreground services and Firebase Cloud Messaging set up to respect battery limits and OS restrictions.

  4. 04

    Device integrations

    Camera, location, Bluetooth, NFC and biometric login implemented with runtime permissions and graceful fallbacks for older devices.

  5. 05

    Play billing

    In-app purchases and subscriptions through Google Play Billing, with server-side verification so entitlements stay accurate.

  6. 06

    Fragmentation testing

    Automated tests plus checks on real devices and emulators across Android versions, screen sizes and low-memory conditions.

In practice

Typical Android projects

  • Warehouse and logistics apps

    Pickers and drivers scan barcodes, confirm deliveries and capture proof of delivery on rugged devices, with offline queues that sync reliably when the network is unavailable. Hardware scanner integrations are tested on the actual devices your teams carry.

  • Kiosk and point-of-service apps

    Dedicated tablets run a single app for check-in, ordering or self-service, locked down in kiosk mode and updated remotely through your device management platform. Devices recover automatically after crashes or power loss, so staff are not called to restart them.

  • Consumer apps for broad markets

    Apps reaching a wide audience are tuned for lower-memory phones, smaller downloads and unreliable data, so they stay responsive for customers who do not own the newest devices. Startup time is measured on low-end devices.

  • Migrating Java apps to Kotlin

    Older Android apps written in Java with XML layouts are moved to Kotlin and Compose in stages, removing deprecated APIs and keeping up with Play Store target requirements. Users keep receiving updates during the move.

Process

How we work

  1. 1

    Device landscape

    We define the minimum Android version, priority devices and form factors, Play services needs and distribution method, using your analytics or market data to keep the test matrix realistic. The matrix guides design and testing.

  2. 2

    Material design

    Screens are designed in Figma using Material Design 3, with adaptive layouts for phones, foldables and tablets, plus dark theme and font scaling considered from the beginning. Designs are reviewed on real devices before development begins.

  3. 3

    Kotlin development

    We build with Kotlin, Jetpack Compose and a layered architecture, using WorkManager for background jobs and Room for local data, with unit tests and continuous integration throughout. Internal test builds are shared through Google Play after each cycle.

  4. 4

    Fragmentation testing

    We test on physical devices and Firebase Test Lab across manufacturers, OS versions and screen sizes, covering battery optimization, permissions, rotation and process death. Manufacturer-specific battery restrictions are tested deliberately, because they often stop background work silently.

  5. 5

    Play Store rollout

    We prepare the store listing, data safety form and signed app bundle, then use internal, closed and staged production tracks to release gradually and watch for issues. Android vitals are watched closely after each release.

Deliverables

What you receive

  • Device and Android version support matrix
  • Material Design 3 interface designs
  • Kotlin and Jetpack Compose source repository
  • Signed app bundle and release keystore guidance
  • Google Play listing and data safety form
  • Device test reports across priority models
  • Crash monitoring and analytics configuration

Tools & methods

Language & UI

  • Kotlin
  • Jetpack Compose
  • Coroutines
  • Material Design 3
  • Hilt

Android libraries

  • Room
  • WorkManager
  • Play Billing
  • CameraX
  • Firebase Cloud Messaging

Build & test

  • Android Studio
  • Gradle
  • Espresso
  • Firebase Test Lab
  • Google Play Console

FAQ

Frequently asked questions

Anything else about Android development? Ask us directly.

  1. We look at who your customers are and set a minimum Android version that covers most of them without dragging in outdated APIs. Then we agree on a test matrix of screen sizes, manufacturers and memory profiles. That decision is written into the scope, so support expectations are clear from day one.

Let’s work together

Have a project in mind?

Book a strategy call and we’ll show you exactly how to turn your goals into a system that generates consistent results.