Android App Modernisation and Kotlin Migration
Modernise an existing Android application without discarding the business logic and user value it already provides.
Modernise Legacy Android Applications
Legacy Android codebases can become expensive to change as dependencies age, platform requirements move on and technical debt slows every release. A staged modernisation restores confidence while keeping disruption under control.
We assess the current Java or Kotlin codebase, build process, dependencies, architecture and test coverage before agreeing priorities. This creates a practical roadmap based on risk and business value rather than a rewrite for its own sake.
Modernisation can include incremental Java-to-Kotlin migration, Android architecture modernisation, replacing obsolete libraries and moving suitable interfaces to Jetpack Compose. Changes are structured so the app can continue shipping throughout the work.
Performance profiling, automated tests and device QA help protect critical workflows while technical debt is reduced. The result is a faster, more maintainable app that is easier to extend and support.
If your Android app has become difficult to maintain, slow to release or increasingly expensive to change, modernisation can address the underlying technical problems without throwing away an established product.
THE SHELF. BUILT AROUND
HOW YOU WORK.
- 01Legacy Android code audits
- 02Java-to-Kotlin migration
- 03Android architecture modernisation
- 04Jetpack Compose migration
- 05Architecture and dependency upgrades
- 06Performance and battery profiling
- 07Technical debt reduction
- 08Build pipeline improvements
- 09Automated regression testing
- 10Cross-device quality assurance
- 11...and much more.
Unsure where the technical debt sits?
A focused code and architecture review can identify the safest modernisation priorities before implementation begins.
Modernise Your Android App in Stages
Modernisation does not always mean starting again. We can identify the highest-risk areas of an existing application and improve them progressively while established functionality remains in use.
A staged approach can allow Java and Kotlin code to coexist while suitable areas are migrated, outdated dependencies are replaced and architecture is improved over time.
This can reduce the risk and disruption associated with a complete rewrite while creating a cleaner foundation for future Android development.
- 01 Incremental Java-to-Kotlin migration
- 02 Architecture improvements
- 03 Outdated library replacement
- 04 Jetpack Compose adoption
- 05 Build and dependency updates
- 06 Performance improvements
- 07 Automated testing
- 08 Technical debt reduction
Android Development Case Studies
An overview of our successful Android app projects for UK businesses
Android Modernisation FAQs
Answers about Kotlin migration, legacy Android architecture, technical debt and modernising an app in stages.