What separates Postrim from a scheduler.
Schedulers move posts around a calendar. Postrim runs the whole loop per brand: the queue, the cross-posting, the voice and the filling of quiet weeks.
One queue per brand
An account is a brand: its own queue, posting schedule, timezone, media library and voice. Ten brands means ten queues that never bleed into each other.
Queue
Shipping the new onboarding today.
Open slot
A month of posting daily, in one thread.
Cross-post without copy-paste
Every time slot holds a lane per platform. Write once and the post fills the lanes you target; an X-only post still leaves the LinkedIn lane open.
Platform lanes
This post fills the X and LinkedIn lanes.
A voice you write down once
Persona documents define how each brand sounds, per platform, and every AI draft goes through them. No tone dropdowns, just your own words about your brand.
Persona documents
Autopilot that remembers
Open slots get filled from your topics, and everything kept enters a ledger the generator must avoid repeating. Long drafts split into threads that fit each platform.
Autopilot
Run every brand from one place.
Composer
Write, attach media per thread part, target platforms, schedule.
Calendar
The whole month of every queue, in one view.
Drafts
Park work in progress; promote it to the queue when ready.
Sent history
Everything published, and every failure surfaced rather than hidden.
Media library
Per-brand folders synced through cloud storage.
Notifications
Publishes, failures and autopilot activity, as they happen.
Frequently asked questions:
Do I need my own OpenAI key?
Yes. AI features run on your own OpenAI key on every plan. You add it once in settings, calls are billed to your OpenAI account, and Postrim never marks them up.
Which platforms can it publish to?
X, LinkedIn, Instagram, TikTok, YouTube, Threads, Bluesky, Reddit and Facebook. An account only posts to the platforms you connect to it.
What happens to posts that are too long?
They are split into a numbered thread that fits each platform, never cut off mid-sentence. Platforms without threads get the full text folded into one post.
How does billing work?
Pro is billed monthly through Lemon Squeezy, who act as merchant of record and take your payment details directly. We never see your card number.
What happens when I cancel?
Cancelling stops the next renewal. Your plan keeps working until the end of the period you already paid for, then the account drops back to Free.
See it with your own brands.
Free plan, no credit card required.
Put your queue to work.
Three accounts free. Connect a brand and schedule this week's posts.