Pro: Remove the HollerBox credit/attribution
Pro users can opt to remove the ⚡by HollerBox attribution from their popups.
Go to the HollerBox settings. If you have a license key make sure to enter it as this setting can only be disabled with a valid license.
Once in the settings, enabled the Hide the ⚡by HollerBox attribution setting.
Your popups will now have no branding on them.