The phrase "access period" refers to a specific time frame or period during which someone is allowed to use or have entry to something. Full definition
Year one of Destiny felt like an extended early access period instead of a finished product. (monstervine.com)
After the free access period is over, usually in three days, every member who wants to get serious must pay. (olderwomenlookingforyoungermen.club)
No refunds are provided for purchase cancellations of books sold for limited access periods of 24 hours, unless the content or service is defective. (goodereader.com)