PostAtom
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Built for creators · AI that writes in your voice

Your social, on autopilot.
Written in your voice.

Write once. PostAtom fits it to every platform, posts at your best time, then reposts and replies on its own.

Start free See how it works
  • X
  • LinkedIn
  • Instagram
  • Threads
  • TikTok
  • YouTube
  • Facebook Pages
  • Pinterest
  • Bluesky
  • Google Business Profile in review
  • Mastodon
  • Reddit
Built for creators

Your social, on autopilot.
In your voice.

Write once and PostAtom shapes it for every platform, picks your best time, then reposts and replies on its own.

Start free See how it works
  • X
  • LinkedIn
  • Instagram
  • Threads
  • TikTok
  • YouTube
  • +5 more
Your voice learned from your best posts

Warm and direct. Short sentences, one idea each. A number when it helps, never a hashtag, links at the end.

3 openings for your next thread

Your best post shouldn’t die after six hours.

The shape of your best post: a short claim, then a turn.

Six hours. That’s how long a good post lives on X. Here’s how to give it a second day.

Openers that start with a number do 1.6× your usual.

Reposts, plugs and first comments — now on autopilot.

Lists do well for you on LinkedIn: 3 of your top 5.
Writes like you

Learns from what worked.
Writes in your voice.

PostAtom reads your best posts and the rules you set, then drafts for every platform — and tells you why each line should work.

  • Every suggestion shows the reason behind it
  • Rules it never breaks, like no hashtags on LinkedIn
  • You can read, edit or remove everything it learns from
Ask AI

Plan your week
in one sentence.

Ask PostAtom to fill your empty slots, turn a newsletter into a thread or find what worked last month. It also works inside ChatGPT and Claude, connected in one click.

  • Every draft waits for your approval first
  • It plans around your best hours on each platform
  • Connect ChatGPT or Claude without touching any code
PostAtomChatGPTClaude
Ask AI · in PostAtom, ChatGPT or Claude
Turn my newsletter into a thread for X and LinkedIn. Post it at my best time, and plug the newsletter if it takes off.
Read your newsletterFound your best hourDrafted in your voiceSet an auto-plug

Done. A four-post thread is ready for Tue 09:12, your best hour on X and LinkedIn. If it reaches 100 likes in 48 hours, the newsletter goes in the replies.

Thread · 4 posts · Tue 09:12 waiting for you

Your best post shouldn’t die after six hours.

First commentPlug at 100 likesRepost +8 h
Approve Edit first
Automations

Keeps working
after it posts.

Repost for the other time zone, plug your newsletter when a post takes off, bring good posts back. Every rule runs once per post, and one switch stops them all.

Auto-repost

Reposts when your other time zone wakes up, then takes it back so your profile stays clean.

reposted +8 hundone0 h24 h48 h

Auto-plug

When a post takes off, PostAtom replies once with your newsletter, shop or next post.

Likes 100 / 100
reply · 2 h 36 min inIf this was useful, the newsletter has one of these every week →

First comment

Links go in the first reply the moment the post is live, so the post itself travels further.

Three things I wish I knew before my first café.
first comment · right afterThe whole story is on the blog →

Evergreen

Your best posts come back every 30 days in your best slots, until they stop earning it.

First time
Back in 30 days
Back again
A fresh opening line each time. It stops when a post stops working.

Best times

Your queue slots come from your own results, hour by hour, platform by platform.

Tue 09:00 · 1.6× your usual
Queue and calendar

See your week.
Fill it in a minute.

Your best hours become queue slots. Drop a post in and it takes the next good one, or let the AI draft something for every empty slot, ready for you to approve.

  • Slots come from when your own posts do best
  • Drag a post to another day; times follow your time zone
  • Every platform at a glance, each in its own colour
  • Slots come from when your own posts do best
  • Drag a post to another day; times follow your time zone
  • Every platform at a glance, each in its own colour
This week 9 posts · 3 empty slots3 empty slots Fill with AI
Mon
09:12 Launch week, day one
18:05 Fill with AI
Tue
09:12 Your best post shouldn’t die after six hours
12:30 Fill with AI
Wed
09:12 Three things I wish I knew
18:05 Why we close on Mondays
Thu
12:30 Behind the counter
18:05 Fill with AI
Fri
09:12 Unknown is not zero Evergreen
Sat
10:00 Saturday market stall
Sun
18:05 Brunch is back
Insights

Know what worked.
Do more of it.

Likes, reposts and replies from every platform in one place, with your best hours and best posts. When a platform doesn’t share a number, we say so — we never fill in a zero.

  • Your top posts teach the AI what works for you
  • Best hours per platform become your queue slots
  • A summary of your week, every Monday morning
Median likes 64 +18% this quarter
Engagement 4.8% per impression
Reposted posts +31% more likes
Top posts this month
Most social tools make you pick: fast or reliable.
We shipped scheduled posts today.
Brunch is back on Saturdays.
Impressions on Bluesky not reported
12 platforms from one draft
1 sentence to plan your week
0 AI posts go out unless you say so
Everything else

The rest of the job,
handled.

The small things that eat an afternoon, done once and kept current.

Threads that fit everywhere

Write a thread once. X, Threads and Bluesky get the thread; LinkedIn gets one post.

A preview for every platform

See exactly how each post will look before anything goes out.

Comments in one place

Reply to comments from every platform without switching apps.

Approvals for teams

Invite people, set roles, and approve posts before they go out.

Bring your queue

Import drafts and scheduled posts from Typefully in a few clicks.

Twelve platforms

X, LinkedIn, Instagram, Threads, TikTok, YouTube, Facebook, Pinterest, Bluesky, Mastodon and Reddit — Google Business Profile is in review.

Up and posting
in three steps.

  1. 01

    Connect your accounts

    Sign in on each platform — PostAtom never sees your passwords.

  2. 02

    Let it learn your voice

    It reads your best posts and drafts the way you write. Change anything it gets wrong.

  3. 03

    Ask, or schedule

    Write in the app or ask the AI. Your queue and your automations take it from there.

Switching?

Bring your queue from Typefully. Keep every scheduled time.

Drafts, threads and scheduled posts come across in a few clicks. Start on Free — X posting included, no credit card.

Import my queue See pricing

Frequently asked

Is there a free plan?

Yes. Free gives you 30 posts a month across 3 accounts, AI captions and posting to X — no credit card.

Which platforms can I post to?

X, LinkedIn, Instagram, Threads, TikTok, YouTube, Facebook Pages, Pinterest, Bluesky, Mastodon and Reddit. Google Business Profile is in review.

Will the AI post without asking me?

Not unless you let it. Anything the AI or a connected assistant writes waits for your approval, and each assistant has its own daily limit.

How does it learn my voice?

From your best posts, the samples you add and the rules you write. You can read and change everything it uses, any time.

Does X cost extra?

No. X charges are included on every plan: within Free’s 30 posts, and up to $10, $20 or $200 a month on Starter, Growth and Scale.

Let your AI run your social. Stay in charge of it.

Free to start. X posting included. No credit card.

Start free See pricing