There is a free trial for guest users. The 30-day free trial period starts automatically when a guest user invited to a guest space first logs in to kintone.

1. Inviter: Create a guest space in kintone and invite a guest user.
   Adding guest spaces
   Guest management (Inviting guests)

2. Guest: When an invitation e-mail has arrived, click the link within the e-mail to log in.
   Guest action: Join the invited guest spaces
   When the guest user is logged in, the 30-day free trial starts automatically.

When the 30-day free trial for a guest user expires, their license is automatically changed from "Trial" to "Required".
If you want a guest user to continue using kintone after the trial period ends, a guest account license for the user is required.

You can check the number of guest users and available licenses on the Guest management screen.
Checking guest account license usage

If your number of available guest account licenses is less than the number of guest users, please purchase additional guest account licenses.

If a guest user continues using their account without a license after their free trial period has ended, their use of the service may be suspended. You will not be charged automatically, so make sure to complete the purchase process as soon as possible.

If you no longer need the guest user's account, go to the Guest management screen of kintone administration and change the status of the guest user to Inactive.
Changing the status of guest users