DMFast

DMFast is a comment-to-DM tool for Instagram and Facebook. You pick a post, or several, and a keyword such as GUIDE. When someone comments that word, DMFast posts a public reply under the comment and sends the person a direct message with your link, as a tappable card. It also answers story replies, mentions and DM keywords such as PRICE, and it can send product carousels, collect email addresses before sending a link, and send a single reminder if someone stops halfway.

The product connects through Meta's own login and uses Meta's official APIs. It only answers people who commented or messaged first, skips spam comments and repeat commenters, and paces replies under Meta's hourly limit. Results show people reached, link clicks and emails for each auto-reply. Optional AI replies, on the Growth and Business plans, answer DMs that no keyword matches, using the business information the user provides.

DMFast is aimed at people who sell through their posts, such as home bakers, coaches, clothing labels, cooks and creators who get many comments asking for the same link or information. The Free plan covers one account with 100 people a month, and paid plans add more accounts, unlimited people, scheduled DMs and team seats.