A warranty with no end date protects the vendor, not you
An open ended warranty sounds generous but leaves the vendor free to define a defect however they like. A warranty with a clear end date tells you what you are owed and when to plan what comes next.
A warranty with no end date sounds like a gift. In practice it is the opposite: a vendor who never says when your cover expires is a vendor who has never decided what your cover actually includes. Ambiguity favours whoever holds the pen, and that is the vendor, not you.
Think about what an open ended promise commits anyone to. Nothing you can point to. Ask when a defect stops being covered and you will hear something like "we look at these case by case." That answer means the vendor decides later, on their own terms, after the invoice has been paid and the goodwill that got you a good rate has faded.
What a real warranty states plainly
A warranty worth signing states three things without hedging: what counts as a defect, how long you have to report it and what the vendor will do once you do. Ours runs for a fixed period after launch and covers faults in the code we wrote, not requests for new features dressed up as bugs. That distinction sounds narrow. It is actually the whole point. A defect is something that does not do what we agreed it would do. A new feature is something you would like it to do that nobody promised. Confusing the two is how open ended warranties turn into free ongoing development, until the vendor gets tired of giving it away and starts saying no anyway, only now without ever having named the boundary.
A fixed end date also tells you something useful: when to start planning for what comes after launch. Software needs attention past the day it ships, whether that is a security update, a change in how people use it or simply hosting that needs renewing. If your warranty never ends on paper, you have no natural point to ask what maintenance costs once it genuinely does end in practice. You find out only when something breaks and the vendor quietly reclassifies it as chargeable work.
A promise with no edges is not a stronger promise. It is one nobody has to keep on any particular day.
We price our work as a fixed sum for a defined scope, and the warranty that comes with it is built the same way. You know before you sign what is covered, for how long and what happens once that period closes. That is not a smaller commitment than an open ended one. It is a commitment you can actually hold someone to, because it has a shape.
Ask for the date, not the promise
Next time a studio offers you a warranty, do not ask how generous it sounds. Ask for the date it ends and the sentence that defines a defect. If neither exists in writing, the warranty exists mainly to make the pitch feel safer, not to make your project safer. A vendor confident in their own work will happily give you both.