Tell it what you're selling
Your app, the problem it fixes, a couple of screenshots. That becomes the brief every post gets written from — the pains, the angles, the voice.
Founding price $49/mo, locked forever
TikTok slideshows get installs.
Making them is a second job.
So Hookline does the second job. It writes carousels that read like a person made them, drops your product in the shot, posts them to your TikTok, and learns which ones landed. You just approve.
Look around free — pay when you're ready to post.
Straight out of Hookline — nothing touched up
No touch-ups, no cherry-picking, no designer mockup. These slides came out of the tool looking like this — and posted looking like this.
01 — How it works
Ten minutes of setup.
Then it keeps posting.
Writing, design, posting, and the feedback that makes next week's batch better — the whole loop sits in one place.
It drafts, you approve
Pick a format — a ranking, a confession, a before/after. Seven slides come back already checked against the copy rules. You pick what ships; you never rewrite.
It posts, then it learns
Connect TikTok once. Carousels go out when your audience is actually scrolling — and the numbers write the next brief.
02 — Why it doesn't look AI
Every hook gets checked.
Not by you.
The rules live in code, so the model can't sweet-talk its way past them. A hook that fails never reaches your editor — you only see the ones that earned it.
$ hookline check --slide 1
hook ✓ "5 reasons your eye bags are so dark"
words ✓ 8 words — under the limit
reading ✓ grade 1.2 — a five-year-old gets it
keyword ✓ "eye bags" in the first line
loop ✓ open loop — the payoff is on slide 7
dupe ✓ no near-duplicate in the last 30 posts
rejected earlier this batch:
✗ "unlock radiant skin secrets today" — ad-speak
✗ "the one trick dermatologists hate" — clickbait
passed → sent to editor- Hooks a five-year-old gets. Clever hooks flop. Simple ones stop thumbs — so the clever stuff goes on the middle slides, where it actually works.
- Your product shows up where it earns it. Delete the mention and the carousel should fall apart. If it still makes sense, it wasn't selling anything.
- No two posts read the same. Angles, formats, and pains get dealt like cards, with no repeats — a week of posts never sounds like one post seven times.
03 — Formats
Seven formats.
None of them templates.
Each one is a structure the feed already rewards — not a Canva theme with your logo dropped in.
Classic
The ranked list, done right.
Pain funnel
Walk into the moment, then fix it.
Swap list
"Stop doing X. Do this."
Quick hit
Three slides, one point, gone.
Scrapbook
Cut-out photos, marker notes.
Guide collage
A how-to that looks like a friend's notes.
Transformation
Before/after, with the review built in.
04 — The loop
Every post teaches
the next one.
Each sync reads what actually landed on your account and feeds it into the next brief. Winners get promoted. The batch after a hit is smarter than the batch before it.
1Post
Carousels go out when your audience scrolls.
2Measure
Views, saves, and shares roll up per post.
3Learn
The winners get promoted into the brief.
4Repeat
The next batch starts smarter.
05 — Pricing
One plan. Everything in it.
Founding members keep $49/mo for as long as they stay.
$49/month
Founding
- Unlimited carousels
- Every format, every future update
- TikTok connect — captions and best-time posting
- Analytics that tell the next batch what won
- Your workspace, your brief, your library
Look around free — pay when you post.
06 — Questions
Fair questions,
straight answers.
Still curious? Look around free — you only pay when you post.
01Does it post to my actual TikTok account?
It does. You connect once through Zernio, and carousels publish with their caption at whatever time your own posting history says your audience is scrolling.
02Will it look AI-generated?
Scroll back up to the wall — that's unedited output. Photo sets get picked to look like a set, and the copy gate rejects ad-speak and clickbait before it reaches you. The test isn't whether a marketer approves. It's whether a thumb stops.
03What do I have to give it?
Your app, a few screenshots, ten minutes of onboarding. Hookline builds the brief from that and writes from it every time.
04Can I edit before it posts?
Everything lands in a real editor first — swap photos, rewrite lines, reorder slides, or regenerate the whole thing. Nothing posts until you say so, and scheduled batches can be pulled back.
05Can I cancel whenever?
Monthly, cancel anytime — you keep access through the end of the paid period. Founding members keep the $49 price as long as they stay subscribed.