Grow your X by the algorithm's rules.
X Radar scores every draft against X's open-source ranking signals, writes in your cloned voice, and shows you the highest-value move to make today - with a weekly report card that keeps you honest.
No password · read-only access · revoke anytime
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reply-back amplification
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ranked engagement signals modeled
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real-time draft scoring
Draft to breakout - one flow.
Draft
Write it - or get ready-to-post drafts in your own voice.
Score
Rated live on X's open-source ranking signals.
Publish
Post now, or schedule it for your optimal window.
Breakout
First-hour velocity tracked every 5 minutes.
Everything the algorithm rewards - working for you.
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banger
Banger Score
Every draft scored live on X's open-source ranking signals.
what do you use most: claude, cursor, or chatgpt?
2-line take, not an essay
Ghostwriter
Short, human-sounding posts in your voice - grounded in what's trending now.
Voice Clone
Learns your voice from your best posts.
Reply Assistant
The highest-value replies to make right now.
Velocity Tracker
Every post's first hour, polled live every 5 minutes.
Replies on your posts
A reply from a mutual is worth 4× the rest. Never miss one.
Cold-start window
Under 50K followers, every new post gets a 2-hour audition. See exactly how much of it is left.
Viral Library
Proven bangers, remixed into your voice.
Risk Radar
Reach-killers caught - before you post.
Report Card
Your weekly algorithm grade, emailed and shareable.
Competitor Intelligence
Growth analytics + rivals' best posts, scored - one click writes your version.
Score a draft. Reply and post from one screen.
Waiting for your draft...
Live scoring runs in under a second
Your dashboard · reply on the left, post on the right
Hot take: most founders ship too late because they polish what nobody asked for.
ReplyShipped the ugly version on Friday. 40 signups by Sunday. The polished one would still be in Figma.
Fresh posts to reply to and 10 drafts in your voice, waiting when you log in.
Not another scheduler.
X Radar
Illustrative growth curves, not measured results - your actual reach depends on your content.
Every ranking signal we track
Confirmed values trace to X's published heavy-ranker constants; the rest are community estimates, clearly marked.
| Signal | Category | Relative weight | Status |
|---|---|---|---|
| Like | positive | +0.66 | confirmed |
| Repost | amplifier | +1 | confirmed |
| Reply | positive | +5 | confirmed |
| Mutual-follow reply boost | amplifier | +15 | confirmed |
| Reply engaged by author | amplifier | +20 | estimated |
| Copy-link share | amplifier | +20 | confirmed |
| DM share | positive | +5 | confirmed |
| Quote post | amplifier | +5 | confirmed |
| Follow author | amplifier | +4 | confirmed |
| Share | amplifier | +2 | confirmed |
| Post click | positive | +0.3 | confirmed |
| Link open | positive | +0.2 | confirmed |
| Video quality view | positive | gate | confirmed |
| Video open | positive | +0.02 | confirmed |
| Photo expand | positive | +0.05 | confirmed |
| Quoted-post click | positive | +0.05 | confirmed |
| Unexplored-interest bonus | amplifier | +0.015 | confirmed |
| Continuous dwell time | quality | +0.006 | confirmed |
| 15s dwell | quality | +0.05 | confirmed |
| Click + long dwell | quality | +0.4 | confirmed |
| Profile click + engage | positive | gate | confirmed |
| Bookmark | quality | +2 | estimated |
| Quick scroll-past | negative | -0.02 | confirmed |
| Not interested | negative | -52.272 | confirmed |
| Mute / block | negative | -90 | confirmed |
| Report | negative | -234 | confirmed |
| Out-of-network factor | amplifier | gate | confirmed |
| Author diversity decay | quality | -1 | confirmed |
| Cold-start boost | amplifier | gate | confirmed |
| Slop / AI-generic penalty | negative | -5 | estimated |
| Native video bonus | amplifier | gate | estimated |
| X Premium subscriber boost | amplifier | gate | estimated |
| 1K follower floor | quality | gate | confirmed |
| Replies from followed users | amplifier | gate | confirmed |
| Follow-graph overlap | quality | gate | confirmed |
| Muted-keyword removal | negative | gate | confirmed |
| Post-age cutoff | quality | gate | confirmed |
Simple, honest pricing
One credit pool covers everything - posting, drafts, scans. No surprise overages, no per-feature nickel-and-diming.
Free
Feel the algorithm advantage - free every week
40 credits / week
e.g. ~20 replies or ~10 AI drafts. Mix however you like.
- 40 credits every week - for posts, replies, AI drafts & scores
- No setup - we learn your niche from your posts
- Ready to Post - 10 drafts a week, written in your voice
- To reply - a weekly list of the best posts in your niche to reply to
- Write with AI - 3 drafts per click, plus AI reply drafts
- Banger Score + Grox safety check on every draft
- Post straight to X, with images & video
- Viral Library - browse proven bangers in your niche
Creator
Everything you need to post and grow
1,200 credits / mo
e.g. publishing ~600 posts or scoring ~600 drafts. Mix however you like.
- Ready to Post - 10 fresh drafts every day, written in your voice
- To reply - a new list every 2 days, plus Refresh
- Replies on your posts - answer from the dashboard, mutuals first
- Write with AI - 2 a day (3 drafts each), grounded in live X trends
- 10 AI reply drafts a day
- Threads & long-form articles, posted straight to X
- Schedule posts & threads
- Viral Library remix - rewrite proven bangers in your voice
- Profile Health - your algorithm-reach checklist
Pro
Your full growth & monetization engine
3,000 credits / mo
e.g. publishing ~1,500 posts or scoring ~2,000 drafts. Mix however you like.
- Everything in Creator, plus
- No daily AI caps - write as much as your credits allow
- To reply - a new list every 12 hours, plus Refresh
- Voice Clone - every draft sounds like you, not a bot
- Trending - reply to or quote the top posts in your niche & the Key Voices you watch
- Trending Roundup - turn this week's news, repos & papers into posts
- Image generation - branded cards & AI images for your posts
- Risk Radar + Thread Score - catch reach-killers before you post
- Competitors - rivals' top posts scored, one click writes your version
- Analytics & weekly Report Card
- Profile Chat - ask a strategist about your account
Agency
Manage multiple accounts at scale
8,000 credits / mo
e.g. publishing ~4,000 posts or scoring ~6,000 drafts. Mix however you like.
- Everything in Pro, plus
- 8,000 credits a month - shared across your accounts
- Team mode - 5 accounts included
- Add account seats as you scale
- White-label client reports
- Priority support
Cancel anytime · Instant access · Prices in USD - pay in your local currency at checkout · Top-up credit packs available on every paid plan
FAQ
Everything you've wondered about X Radar
Answers to the most common questions - about how scoring works, what data we access, and how the algorithm actually decides your reach.
- X Radar runs your draft through X's open-source ranking model - the same one that decides how many people actually see a post. It predicts the probability of every action a viewer might take (reply, repost, like, mute) and multiplies each by that action's known weight. The result is a composite score you can act on before you publish, not after.
- X Radar requests read-only OAuth access - it can see your public profile and timeline, but it cannot post, follow, or access your DMs. You can revoke access from X's connected-apps settings at any time. No password is ever shared or stored.
- When the author of a post replies back to your reply, it fires one of the heaviest positive signals in X's ranking model - far heavier than a like. X Radar detects threads with high reply-back velocity and surfaces them as 'seed' opportunities, so you can reply early and ride the engagement wave.
- X Radar tracks all 37 signals in X's open-source algorithm at the commit we pin, using their published values. The heaviest positives are someone copying your link and pasting it elsewhere (+20), a reply from an account that follows you back (+20), DM shares and quote posts (+5 each), plain replies (+5) and new follows (+4) - a like is only +0.5. The heaviest negatives are reports (-234), mutes and blocks (-90) and "not interested" taps (-43.2).
- Hashtags yes, links no. Three or more hashtags read as spam to the classifier that screens posts before ranking even begins. Links are not penalised in X's published ranker at all - a link open scores +0.2, a positive weight. What a link really costs is the continuous read time that keeps earning while someone stays on the post, so a link post still needs to be worth reading on its own. Skip 'link in bio' CTAs: the profile-click weight now ships at 0.
- Schedulers post content; X Radar scores it first. Before you publish, you see a predicted reach score, which signals are helping or hurting, and ready-to-post alternatives tuned to your voice - all derived from the actual open-source algorithm weights, not generic 'best practice' advice.