AlsoAsked provides approximately 1,000,000 free searches per month for free to guest (non-logged in) users.
If you create an account, you will get an initial free 3 searches, but this will not be reset. Account creation exists for active and paused paid users.
The reasoning behind this is that we unfortunately had an issue with some individuals abusing the system and creating multiple accounts to exploit free searches.
If you wish to use free searches, you can simply logout of your account.