A trial window is the defined period during which a trial entitlement can be used under its stated conditions. Its start, finish, scope and any payment or renewal arrangements must come from the actual offer. A player-app trial and a service trial can run independently, so their duration or access should not be combined by assumption.
A practical example
A viewer can install a player before arranging a separate service trial. The player may display its own trial timeline while the service confirms another start and end, making it useful to record which product each message or date describes.
A common misunderstanding
Do not label a trial free or assume it converts automatically without the actual terms. Keep the duration and important conditions next to the offer rather than relying on a generic promotional word.
Related terms
General operational definition; actual service terms remain separate. Editorial approach