An app that is not maintained stops working, and not slowly. Operating systems update annually and deprecate things, platforms change their requirements, dependencies carry vulnerabilities, and certificates expire. Maintenance is not a discretionary extra on a finished product; it is the cost of the product continuing to exist.
What mobile application maintenance services actually consist of
Four different activities get billed under one word. Keeping up with platform changes, which is predictable annual work. Security and dependency updates, which arrive unpredictably and sometimes urgently. Defect fixing, which depends on quality. And small improvements, which is really development. Contracts that lump all four into a monthly fee usually mean the first three consume the budget and the fourth never happens, which then looks like the vendor doing nothing.
The annual platform cycle is not optional
Each year brings new operating system versions, new devices and new store requirements, and Apple's App Store Review Guidelines change with them. An app left alone will hit a requirement it does not meet and be unable to ship an update at the moment you most need one. Budget for a yearly compatibility pass regardless of whether you are adding features, and treat it as a fixed cost of having an app at all.
What a contract for application maintenance and support services should specify
Response and resolution times by severity, with a definition of each severity that you recognise. Who monitors crash rates and store reviews, and how you are told. How many hours per month are included and what happens to unused ones. Explicitly whether platform compatibility work is included or billed separately, since that is the largest predictable item. And access arrangements, so the vendor can act without waiting on you during an incident.
Keep the ability to leave
Maintenance relationships quietly become permanent because the vendor is the only party who understands the code. Guard against it deliberately: your accounts, your repository, documentation kept current as a deliverable rather than a promise, and a periodic handover test where someone else builds and releases the app. An express copyright assignment matters here too, since under 17 USC 101 commissioned software is not automatically a work made for hire.
Questions people ask about mobile app maintenance services
What does app maintenance actually cost?
Ask for it as four separate lines: platform compatibility work, security and dependency updates, defect fixing and small improvements. A single monthly figure usually means the first three consume the budget and improvements never happen.
Can we skip maintenance if the app works?
Not for long. Operating systems update annually, store requirements change, dependencies develop vulnerabilities and certificates expire. An unmaintained app eventually cannot ship an update at the moment you most need one.
How do we avoid being locked into an application maintenance company?
Keep your accounts and repository, make current documentation a contractual deliverable rather than a promise, hold an express copyright assignment, and periodically have someone else build and release the app to prove the handover works.