Twitter Ads
ads.twitter.com
Set a budget and only pay when users follow your account or retweet, like, reply, or click on your Promoted Tweet.
@TwitterAdsHelp

Mike Gaboury & Jason Soprovich is also using
Shopify,
MailChimp,
Facebook,
Instagram,
Twitter,
and more...
Steven Sashen is also using
WooCommerce,
Amazon,
Klaviyo,
Google Analytics,
ShipStation,
and more...