Extract the DNA. Eliminate the Friction.

Twelve years writing brand copy across enterprise creative teams, Shark Tank startups, agencies, and freelance work taught me something nobody puts in a job description. Four accounts means four registers, and by Thursday you're bleeding one voice into another.

SIC breaks a voice into four parts.

A — Architecture:

how the sentences are built

T — Tone:

the emotional register

C — Cadence:

the rhythm and pacing

G — Guardrails:

the words the brand would never use

Sequence a source once and the profile sits in your vault, ready to apply to anything.

Feed it real published prose. About pages, brand blog posts, founder letters, product launch announcements, long-form campaign copy, newsletters. A few paragraphs is enough. What it needs is running sentences, so skip anything that's mostly bullets, spec sheets, legal boilerplate, or a headline with no body behind it. The more the source sounds like the brand at its most itself, the sharper the strand.

Pro tip: Paste clean prose only. Image captions, nav labels, cookie banners, and ad text picked up from a select-all will get read as part of the voice.

Apply an active Brand Strand to a rough draft in the Synthesize phase. SIC rebuilds your facts inside that brand's structure: its sentence rhythm, its paragraph shape, its vocabulary limits.

You decide what the copy says. SIC decides how it sounds. What comes back is a draft, and it gets better once you've been through it.

Both steps run on an LLM. That's the honest answer, and it's why the constraints matter more than the model does.

Sequencing reports on the four parameters above. Nothing else. It doesn't score the brand or tell you whether the writing is good.

Synthesis is where most tools go wrong. Ask a chatbot to rewrite something in a brand's voice and it will happily:

• ×invent a customer who never existed
• ×round or estimate your numbers
• ×attribute a quote to someone who never said it

SIC refuses all three, every time. Your draft is the only source of facts, and figures come out exactly as they went in.

What it will add is connective tissue: a transition, a turn of phrase, a line bridging two facts you gave it. That's why the output is a draft and why you read it before it goes anywhere. The tool handles the voice. You're still the writer.

Anyone producing copy in more than one voice at a time.

• Creative Directors: Hold tone steady across a team that keeps growing.

• Agencies: Keep a strand per client and swap accounts without the reset.

• Freelance Copywriters: Take the fourth account without losing the first three.

• Aspiring Copywriters: Take a campaign apart and see how the voice was actually built.

No account needed to try it. Run one sequence and one synthesis, and see the whole thing work before you decide anything.

Free gives you one permanent strand and unlimited synthesis. You can't edit its parameters, that's Pro.

Pro is $15 a month for up to ten strands, editable and deletable, so you can retire a client and cycle in a new one. Cancel anytime.