Spotipo uses the concept of Packages to offer different levels of WiFi access to Guests. One can create packages with different pricing that support a variety of Speeds, Duration, number of devices allowed etc.
To create a Package, click on the "Packages" tab on the left and use the Add Package option.
In the next screen specify a name for the package as well as the price, number of guest devices allowed, duration, data and speed limits
On the right, you can preview how this package will look on the splash page. Here you can also update the color of the package button.
If you like to add tax lines like VAT, GST etc, check out this article.