WunderAutomation is an automation plugin for WordPress. The pro version also comes with integrations for a lot of popular plugins and external services, such as Contact From 7 and MailChimp. WunderAutomation Pro also comes with 1 year email support and updates.
This is a premium plugin that requires you to first purchase a license from this website. After the purchase you will receive an email with download instructions for the plugin.
Twilio is a global infrastructure provider for building customer contact solutions. Among other great tools, Twilio offers a global SMS-gateway that can send SMS messages to more or less any mobile phone world wide.
Twilio SMS pricing is based on the destination and type of message you’re sending. At the time of writing this, the base price for sending an SMS to most contries are $0.0075 per message. Please note that each message can only contain 160 characters, longer messages will incur higher charges.
For more information and full pricing: https://www.twilio.com/sms/pricing/us
In order for Slack to accept messages from your WordPress site, you need to enable the “incomming webhook” app on Slack, see link below. When you have set up your webhook Slack will give you a unique URL for your webhook, you need to copy this URL to the settings page of this plugin.