Most engagements use all three services in different proportions. A replacement system may need new software, connections to finance and customer platforms, and an operating agreement after launch. Smaller pieces can be scoped on their own when that is genuinely all the work requires.
Clients own the delivered source code, infrastructure definitions and data. Opsenium can host and operate the system, but the technical and contractual exit route is documented from the start.
See the problems we commonly take on, or read how delivery works.
Also available: AppCheck, a fixed-price QA review for products built quickly by small teams.