You can utilize QA Analytics for free if your site receives up to 10,000 page views per month.
However, the data retention period is limited to 90 days (3 months), after which the data will be deleted. By upgrading to the paid plans, either "Light" or "Pro," you can expand the number of supported page views, adjust the data retention period according to your preferences, and increase the number of goals you can set.

As indicated in the price list, the Light plan supports up to 100,000 PV (page views) per month, while the Pro plan supports up to 300,000 PV per month. If the maximum monthly PV limit is exceeded, measurement will stop for that month, and measurement will resume on the first day of the following month.
Even for sites exceeding 300,000 PV per month, QA Analytics can still operate, but the data will be stored on the web server you are using.
For sites exceeding 300,000 PV per month, to ensure that your online service is not affected, we will discuss in detail your server environment, load conditions, etc., before implementation, and we will propose and support the introduction of QA Analytics in an appropriate manner.
Therefore, please contact us regarding sites exceeding 300,000 PV per month.

The free version allows up to 10,000 PVs per month.
If you exceed 10,000 PVs, data collection will stop until the end of that month.
The data collection stop is only for the remainder of that month, and the limit will be reset on the first day of the following month.
Since data analysis is crucial, especially during advertising campaigns, upgrading to a paid plan will remove this limitation.

A license can be authenticated for only one domain. If you wish to use it on another domain, please purchase an additional license.

Yes, you can change (swap) the applicable domain for your license. To change the applicable domain:

1) On the site from which you wish to remove the license, deactivate the license authentication. (This will temporarily remove the domain registration.)
2) On the new site for which you wish to apply, authenticate the license. (The new domain will be registered.)

If you have already uninstalled the plugin on the site from which you are removing the license and are unable to perform operations from the WordPress admin panel, please contact us.

It is possible to cancel an annual plan midway through the subscription period, but refunds are not provided. If there's a possibility of canceling midway, we recommend subscribing to a monthly plan.
Upgrading your plan during the annual contract period (e.g., from Light to Pro) is possible. If you upgrade your annual package, you can use the upgraded plan during the application month, and the difference in plan prices for the remaining months of the annual contract will be charged to your credit card the following month.
Downgrading your plan or changing to a monthly payment during the annual contract period is not possible. Changes to a lower-tier plan or to monthly payments can be made at the time of annual contract renewal.

Both the Light and Pro paid plans include email support (helpdesk hours follow the Japanese calendar).
However, please understand that support is limited to issues directly caused by QA Analytics. Troubleshooting, analysis, and support for issues unique to the customer's environment that are not caused by QA Analytics are not covered (separate charges apply).
If support is needed for initial implementation, site improvement, in-house training, consulting, or infrastructure investigation of the customer's specific environment, a separate quote will be provided.