These two terms may seem almost the same at first sight. However, if you are using OptiMonk, they mean different things.
You can meet the term Impressions when you view the Campaign Statistics in your OptiMonk account. It refers to the number of times your messages have been displayed to your visitors.
A pageview is when a user visits one of the pages on your website. Pageviews are tallied for each page of your site. When a page is being loaded (or reloaded) on your website, it is counted as a pageview.
Let's see a practical example. You have a visitor coming to your page. They will see the popup message once, so they will generate one impression for the campaign. But they do not stop at the home page, they continue browsing in the Categories page and 3-4 of the product pages as well. This way, they generate 5-6 pageviews.
Usually, the number of pageviews is higher than the number of impressions, because the campaigns often are not shown to every visitor. The OptiMonk app does not only detect when a popup is displayed but is also detects if it is not being displayed to the visitors. The pageviews will be counted even if the popup only displayed once to a specific customer. We have many different rules to choose from and the OptiMonk app needs to determine not only when to show the popup but also when not to show it.
If you do not have any active Campaigns, OptiMonk will not count any pageview your site receives. We only count pageviews, if you have an active Campaign on your website.
Our plans' limit is a monthly limit in Pageviews. This limit resets on the first day of each calendar month. You can see the different pageview limits for the available OptiMonk subscriptions at https://www.optimonk.com/plans-and-pricing: