Compose in your own voice
Write it rough. Assist reads your best recent posts and offers three takes: tighter, a stronger hook, or a different tone. You pick one, edit it and post.
Built by a dev who grew 125 → almost 2,000 with repliesPost better. Reply smarter.
OutgrowX helps you write posts in your own voice, schedule the week, find the posts worth replying to, and see what actually grew your account.
7-day free trial, then $19/month. Card needed, cancel anytime.
Signing in means you agree to the Terms and Privacy Policy.
Everything you need to grow on X
One place to write, plan, reply and read your numbers. You stay the author.
Schedule the week
Put posts on a calendar in your time zone. They go out on time from our server, even when you're offline, and you can cancel any of them until they do.
Real analytics
Followers, impressions and your top posts from the last 30 days, with your best times to post worked out from your own history.
Discover who to reply to
Posts that still have room for your reply, with reply ideas in your voice. Reply on X opens X's own reply box with it filled in. You press send.
Coming soon: a free Chrome extension
It will score the posts you scroll past on x.com: green for reply now, with the views your reply is likely to get. It only reads what X already showed you, so it never touches your limits.
See where a reply will be seen
Discover scores every post on rules measured on real replies, so your replies land where people are still reading.
What it never does
You stay the author. OutgrowX helps you write and decide; you press post.
- Never likes, follows, replies or DMs on its own.
- Never posts anything you didn't write and choose to post.
- Never asks for your X password. You sign in with X.
- Never sells your data or shares your drafts.
How to grow on X with replies
The routine that took me from 125 to 1,959 followers in 7 weeks, measured on my own replies. You can do all of it by hand. OutgrowX does the checking and helps with the writing.
Who to reply to on X
- Posts with 12 to 60 replies. That is the sweet spot.
- Past about 85 replies, reach collapses. Skip those.
- A reply gets about 0.5 to 2.8% of the post's views. On a 20K-view post, that is 100 to 560 views.
- Skip polls and posts under about 20 views.
- For new follows: accounts that follow more people than follow them, where neither of you follows the other.
How to reply like a person
- Write every reply fresh, in your own words. No templates.
- Never faster than about one a minute, and never at a steady rhythm.
- Spread out. Don't keep replying to the same account on the same day.
Keep score
- Log every reply and what it earned: views, and whether the author replied back.
- Track followers gained per 100 replies, week by week.
- Note the accounts that never reply back, and spend your replies elsewhere.
Why I built it
I grew @asaridarr from 125 to 1,959 followers in 7 weeks, almost all of it from replies.
Every day I worked out which posts were worth a reply, then logged what each one earned. A few rules kept showing up: a reply gets about 0.5 to 2.8% of the post's views, posts with 12 to 60 replies work best, past about 85 replies nobody scrolls down to you, and posts under about 20 views are invisible.
OutgrowX puts that whole routine in one place: write in your own voice, plan the week, reply where you'll be seen, and read what actually worked.
Ahmad, @asaridarr
Pricing
One plan with everything in it. Try it free for 7 days.
Pro
$19/month
or $120/year ($10/month, 47% off)
7-day free trial. Card needed to start it.
- Compose with AI suggestions in your voice
- Schedule posts on a calendar
- Analytics: followers, impressions, top posts, best times
- Discover posts worth replying to, with reply ideas
- The free Chrome extension for x.com (coming soon)
- Sign in with X. No password
FAQ
How do I grow on X?
Reply every day to posts that still have room for you: 12 to 60 replies, and enough views that 0.5 to 2.8% of them is worth it. Post things people can answer, and never rush. That routine took @asaridarr from 125 to 1,959 followers between 5 Sep and 24 Oct 2026.
Who should I reply to on X?
Posts with 12 to 60 replies, and accounts that follow more people than follow them. Skip polls, posts past about 85 replies and posts under about 20 views. OutgrowX marks these for you in Discover, and soon right on x.com with the free extension.
Does OutgrowX use AI?
Yes, for suggestions. Assist reads your own best recent posts and offers rewrites and reply ideas that sound like you. Nothing goes out until you pick one, edit it if you like, and press post.
Does it post for me?
Only what you choose to post or schedule, through X's official API, once you turn on posting. You can cancel a scheduled post until it goes out. It never likes, follows, replies or DMs on its own.
Is my X account safe?
You sign in with X's own login, so OutgrowX never sees your password. Your X access is stored encrypted on the server and never reaches the browser, and you can remove it in X's settings any time.
Where does my data go?
Your drafts, schedule and numbers are kept for your account only and never sold. When the Chrome extension ships, its scores never leave your browser.
Can I cancel any time?
Yes, in Settings. Cancel during the free trial and you're never charged. Cancel later and you keep Pro until the end of the month or year you paid for. There are no refunds for part of a month or year.
Is there a free plan?
No. Pro starts with a 7-day free trial, and you add a card to start it. Cancel before the trial ends and you pay nothing. Pro is $19/month or $120/year.
Do I need the Chrome extension?
No. Everything works on outgrowx.com. The extension is a free extra for Chrome on desktop, coming soon: it scores the posts you scroll past on x.com.
Your next follower is in someone else's replies.
OutgrowX helps you find them, and write posts worth following.
7-day free trial, then $19/month. Card needed, cancel anytime.
Signing in means you agree to the Terms and Privacy Policy.