The full answer
Legacy systems usually cause trouble in predictable ways: they are hard to change, depend on a few people who understand them, run on unsupported technology, or block integrations with newer tools. Modernisation addresses these without throwing away the business knowledge built into the old system.
Creuto starts with an assessment of the codebase, database, infrastructure and integrations. From that, the team recommends a path, such as moving to the cloud with minimal changes, refactoring key components, or rebuilding module by module alongside the old system until it can be retired.
Incremental replacement is often the safest choice for business-critical software. New modules take over specific functions one at a time, data is migrated and validated in stages, and users move across gradually instead of in a single high-risk cut-over.
Mobile apps can be modernised too, for example by moving an ageing native codebase to Flutter or React Native, or updating it to current platform requirements.
Modernisation is also a chance to fix long-standing pain points. Teams often add proper role-based access control, audit logs, automated testing, CI/CD and monitoring as part of the work, so the new system is easier to change and safer to run than the one it replaces.