PostSiete
PostSiete
One idea goes in. Seven drafts come out — a LinkedIn essay, a 280-character post, a timed TikTok script — each written for its platform, never pasted across it. Preview each exactly as it'll post, in your own voice, then publish from the same desk.
Every draft rendered exactly as it posts — LinkedIn's "see more" fold, X's 280, Instagram's caption cutoff, the image crop per platform. Catch what breaks before you publish, not after.
Paste a few of your best posts and the AI learns how you actually write — rhythm, quirks, phrasing — then every draft comes out in your voice. Not generic AI copy.
Drop a blog post, newsletter, or transcript. Get platform-native drafts, then plan them across your content calendar in a single click. Write once; schedule the week.
| Platform | What we write | Hard limit | Hashtags |
|---|---|---|---|
| Hook-first essay, short paragraphs, question close | 3,000 | 3–5 | |
| X (Twitter) | One sharp idea, hook in six words | 280 | 0–2 |
| Visual-first caption, line breaks for rhythm | 2,200 | 5–10 | |
| TikTok | Timed script: hook → proof → payoff → CTA | 2,200 | 3–6 |
| Threads | Conversational, like a smart friend | 500 | 0–2 |
| Warm, shareable, comment-inviting | 63,206 | 1–3 | |
| YouTube Shorts | Sub-60s script with a suggested title | 5,000 | 2–4 |
Character meters run live while you edit. A draft over its limit cannot sneak past you.
| What you're weighing | Per-channel schedulers | X-first creator tools | PostSiete |
|---|---|---|---|
| Monthly cost, 7 platforms | $28–35 (Buffer at $5/channel) → $199 (Hootsuite) | $19–65, mostly one platform | $12 flat. Or $0, self-hosted |
| Writes platform-native drafts | Caption assistant, higher tiers | X only (Hypefury: none) | Yes — 7 platforms, every plan |
| See it exactly as it'll post (native previews) | Enterprise tiers | X-style only | Yes — all 7 platforms, fold & crop accurate |
| AI voice trained on your own posts | Higher plans | — | Built in — paste posts, it learns your voice |
| Approval workflow | Enterprise tiers | — | Built in, every plan |
| API for automation | Varies, often gated | Typefully yes · Hypefury no | Every account + n8n export |
| Who holds your keys & data | They do | They do | You do — your server, your AI key, encrypted at rest |
Their AI is the upsell — ours is your own key at API cost. That's a margin they can't follow us to.
Assumes ~2 minutes to review & approve a PostSiete draft instead of writing from scratch — edit any input above. Reference prices, July 2026 list: Buffer $5/channel (7 channels ≈ $35), Hootsuite Standard $199/user, X-first creator tools $19–65. PostSiete Pro $12 flat. No user earnings are claimed here — the math is yours.
Bring your Anthropic key and every package is written by a frontier model, per-platform. Without a key, a capable built-in engine takes over.
Connect once, publish from the draft card, keep the permalink. Credentials encrypted with AES-256-GCM.
A real editorial workflow with an approval email composed for every package. Agencies start here.
REST API plus one-click n8n workflow export. Wire it into whatever already runs your business.
Full PWA — add it to your home screen, or ship it as an Android APK from the same codebase.
One Node process, zero runtime dependencies, data in files you can read. Run it on a $5 VPS or our cloud — either way it's your machine.
See every draft exactly as it'll appear — LinkedIn's "see more" fold, X's 280 counter, Instagram's caption cutoff, the image crop per platform — before you post a word.
Drop a blog post, newsletter, or transcript and get platform-native drafts, then spread them across your calendar in a click. Repurpose, don't retype.
Paste your best posts and the AI learns your voice — tone, rhythm, quirks — then writes every draft to sound like you, not generic AI.
Every plan can preview and plan all seven platforms on the content calendar. Direct publishing & analytics run natively on X today (the platform we post to directly); the auto-scheduler (Siete) turns X drafts into real scheduled posts. Native publishing & analytics for Instagram, LinkedIn, TikTok and the rest are on the public roadmap.
Direct scheduled posting to Instagram, LinkedIn, TikTok, Facebook, Threads and YouTube — beyond today's X. Each needs that platform's API approval, so it lands progressively.
One dashboard pulling real metrics from every connected network, not just X. Ships alongside each platform integration above.
Invite teammates into a workspace and put your own brand on client-approval pages.
These are future — not included in today's price, and never billed as if they were.