For Creators
OnlyFans growth doesn't happen on OnlyFans. It happens in safe-for-work promo clips on TikTok, Reels, Shorts, and X that pull strangers into a link-in-bio funnel. Those clips are ads in everything but name — and unlike ads, you can't buy your way past a weak one.
Promo content for OnlyFans runs under the strictest constraints in short-form: it has to stay fully SFW, it can't name what it's selling, and it competes in the same feed as everything else. That means the clip can't lean on the offer at all — personality, curiosity, and the hook carry 100% of the load. A mainstream brand with a weak opening can still limp along on product interest. A promo clip with a weak opening is simply invisible. The first three seconds aren't the most important part of the video; for this funnel they're effectively the whole video.
You can't spam your way out, either. Algorithms throttle accounts that post heavily, distribution compounds on recent performance — a run of dead clips depresses the next ones — and promo-adjacent accounts already operate close to moderation lines, where volume draws exactly the wrong kind of attention. Realistically you get a small number of meaningful swings per day. Spending one on a clip whose opening loses everyone by second three isn't a neutral miss; it's a slot that made the account colder. That's the same budget-protection logic as testing ads before spending — the currency is reach instead of dollars.
Upload the promo clip you're about to post and PreTestAds scores its predicted attention against 76 top-performing TikTok ads — a percentile with a weak / moderate / strong label, Hook Strength for the opening, and a second-by-second attention curve showing exactly where viewers bail. Shot two openings? Score both cuts and post the winner. Sitting on ten clips from one shoot day? Score the batch, lead with the strongest, and re-cut the weak ones before they go anywhere. Results come back in minutes, so testing fits inside a normal posting rhythm.
OnlyFans agencies and managers run this problem at multiplied scale — dozens of creators, each needing daily promo, with editing and posting effort allocated mostly by feel. Scoring gives that allocation a number: run each creator's recent promo clips, compare median attention the same way a brand compares influencers before hiring, and double down on the creators and formats that hold strangers. It also settles the recurring argument with evidence: when a creator insists the slow-burn intro works, the attention curve answers politely.
The score measures whether the clip holds attention — it doesn't predict subscriptions, and it isn't a compliance check. Staying inside TikTok's, Meta's, and X's content rules is still your job, and no attention score protects an account that crosses them. Test the SFW promo content you post publicly; what converts viewers after the link-in-bio is a different craft. But the funnel only exists for viewers who stopped scrolling — and that's the part you can now measure before you post.
Upload the clip and see its predicted attention in minutes — up to 8 free credits, no card.
Score a Promo ClipAlmost all OnlyFans growth comes from safe-for-work promo content posted organically — TikToks, Reels, YouTube Shorts, X posts — that pulls viewers toward a link-in-bio funnel. Since most ad platforms won't take adult-adjacent advertisers, the organic promo clip effectively is the ad, and its first three seconds decide whether anyone enters the funnel.
Yes. Upload the SFW promo clip you're about to post and get a predicted-attention score benchmarked against 76 top-performing TikTok ads, plus a second-by-second curve showing exactly where viewers drop. If the hook is weak you find out in minutes — before the clip spends one of your limited daily post slots.
Yes — it's arguably more useful at agency scale. An agency running promo channels for many creators can score each creator's recent promo clips, compare medians, and put editing and posting effort behind the creators and formats that hold attention, instead of allocating by gut feel or by follower count.