The full answer
Software needs regular care after it goes live. Libraries publish security fixes, Apple and Google change app store requirements, cloud services evolve and user numbers grow. Without maintenance, even a well-built product slowly becomes fragile.
Creuto's support work typically includes monitoring uptime and errors, responding to incidents, applying updates on a regular schedule, and keeping the deployment pipeline and automated tests healthy so changes remain safe to release.
Most clients also continue developing the product. New features, integrations and improvements are planned in two-week sprints, using the same process as the original build, so the product keeps pace with the business.
The scope of support is agreed with you, based on how critical the system is and what response you need. Details are set out in the proposal or support agreement rather than assumed.
If Creuto did not build your product, maintenance can still be taken on. The team first reviews the code, infrastructure and current issues, then agrees a stabilisation plan before moving to a regular maintenance rhythm. This is common for products whose original developers are no longer available.