The pricing for these tools varies based on the features and the number of subscribers. Mailchimp offers a free tier with basic features, with paid plans starting at $9.99 per month. Constant Contact's pricing starts at $20 per month, making it accessible for small businesses. SendinBlue's pricing is based on the number of emails sent rather than the number of subscribers, with a free tier available. GetResponse offers a 30-day free trial, with paid plans starting at $15 per month. HubSpot's email marketing tool is free, but additional features and integrations require a paid subscription starting at $45 per month.