Unable to assign the Checklist to the users though it's available for the Free as in the plan

[Hifzaan Sharieff]

[Dreamsuite Mike]

@Hifzaan Sharieff There is a little workaround if you can't afford paid Trello.  You could mention people in the checklist.  

You would say, "Gmail Inbox @mike" for example

You could even set an automation to add a member to a card when they are mentioned in a checklist, "When a checklist item containing @{*}, add @{wildcard1} to the card".   

[Felix]

Assigning check items is part of the "Advanced Checklists" feature, and is only available in paid plans of Trello - see https://trello.com/pricing