A Reel can get a million views and leave you with almost no new followers. The gap between "went viral" and "grew" is what you do with the comments. Here is how creators turn Reel comments into followers, using a follow gate and auto-DM, for free.
Why views do not equal followers
Reach shows your Reel to people who do not follow you, but most of them scroll on. To turn a viewer into a follower you need a reason to act and a moment to act on. A "comment a keyword for the link" call-to-action gives them both.
Step 1: get more comments on purpose
Ask for a specific comment. "Comment LINK and I'll send you the full guide" gets far more comments than "link in bio", and comments are strong engagement. More comments and replies push your Reel to more people, which is the flywheel you want.
Step 2: add a follow gate
This is the part that grows your account. When someone comments your keyword, the follow gate asks them to follow you before the link is sent. They already want the link, so most follow. One busy Reel can add hundreds of followers this way, on autopilot. Set it up with Tem in about two minutes, free.
Step 3: reply instantly, every time
Speed matters. A DM that arrives in twenty seconds while they are still watching converts far better than one that comes an hour later. Automation is the only way to keep that speed when a Reel is popping.
Step 4: measure followers and clicks, not just views
Track what the Reel actually caused: comments, DMs sent, follows from the gate, and link clicks. That tells you which topics and hooks grow you, so you can make more of them. See the full comment-to-DM guide for the tracking side.
Put it together
Post a Reel with a clear "comment [word]" ask, turn on auto-DM with a follow gate, and let it run. You get the clicks and the followers from the same post, without answering a single comment by hand. Start with the auto-DM setup guide.