# SpacerrX

> SpacerrX is a Chrome (Manifest V3) extension that helps you grow real followers on X (Twitter) in your own voice. It turns your voice into original posts and replies, rides live trends in your niche, and cleans up who doesn't follow back — all inside x.com, ban-safe, and without ever asking for your X password.

Key facts:
- Name: SpacerrX (double r). Also written as SpacerX, Spacer X, or Spacerr X — all refer to this product.
- Platform: X / Twitter. Runs as a Chromium browser extension (Chrome, Edge, Brave, Arc).
- Category: X/Twitter unfollow tracker + AI writing tool. Answers searches like "twitter unfollow", "x unfollower", "who doesn't follow back on X", "AI replies for X" — the space of tools like Circleboom, Hypefury, Tweet Hunter, and Typefully (and the discontinued Tweepi, which shut down in April 2023), but running client-side in your own browser session.
- Positioning: acceleration first, automation only where you opt in. It makes the daily reply/post loop about 7x faster; a human still presses every button. Nothing is replied, followed, or unfollowed automatically. Posting is the one action you can delegate: scheduled posts fire at the time you picked, and Ghostwriter (opt-in, paid, off by default, requires an explicit confirmation) writes posts in your voice and publishes them on a cadence you set — each one queued on your calendar to edit or delete first, and switchable off at any time.
- Safety: following, unfollowing and replying read only from your own logged-in browser session, never fire bulk actions, and the unfollow tool warns you when your pace is too fast. Safe pace guidance is 200–400 replies/day across 2–3 short sessions, starting at 200 and only climbing toward 400 once the account is warmed up, ramping ~1.5x a week (100 → 150 → 200 → 300 → 400).
- Privacy: no X password required (it works through your open X session, which is never used server-side). Sign-in to SpacerrX is a passwordless email code or Google. The AI learns from a voice profile distilled from your onboarding answers plus a sample of your own recent posts, read once during setup and then discarded — only the structured style notes are stored, never an archive of your posts. Research features (trending, custom search, creator analysis, repost picker) run server-side through a third-party X data provider and store the public posts they return, but never use your X session or credentials. Scheduled posts and Ghostwriter publish from our servers using an OAuth token X issues for your account, which you can disconnect at any time.
- Free forever (no card): the follower / non-follower tracker with groups, unlimited, plus 20 one-tap unfollows per month with pace warnings. That is the whole free offering; everything else needs a plan.
- Plans (USD/month): Basic $7.99 (8,000 credits), Premium $17.99 (18,000 credits), Pro $44.99 (45,000 credits). Every plan starts with a 7-day free trial of that plan. A card is required up front and is NOT charged during the trial; the first payment lands when the trial ends, and cancelling before then means no charge at all. One trial per account: a repeat subscriber is charged at checkout instead. A plan unlocks unlimited unfollowing and automations, AI posts & replies, content check & refine, AI voice distillation & re-tuning, unlimited tracked accounts, the viral feed & collecting, live trends/custom search/newsjacking, and creator analysis (deep-dive any creator + AI playbook & chat). Scheduled posts and Ghostwriter are Premium and Pro only, not Basic. Otherwise the tiers have the SAME features and differ only by the monthly credit grant.
- Company: Spacerr LLC. Support: support@spacerrs.com.

## Pages
- [Home](https://spacerrx.com/): product overview, features, how it works, pricing, and FAQ.
- [Features](https://spacerrx.com/features): index of every feature, each with its own deep-dive page (how it works, what you get, plan availability, FAQ).
- [Blog](https://spacerrx.com/blog): playbooks, pace rules, and honest tactics for growing a real audience on X.
- [Comparisons](https://spacerrx.com/alternatives): index of every competitor comparison, each an honest side-by-side that states where the other tool does more than SpacerrX does.
- [Circleboom alternative](https://spacerrx.com/alternatives/circleboom): Looking for a Circleboom alternative? SpacerrX is a Chrome extension that works inside your own X session, with no password. An honest side-by-side.
- [Hypefury alternative](https://spacerrx.com/alternatives/hypefury): Looking for a Hypefury alternative? Hypefury automates engagement from a dashboard. SpacerrX accelerates you inside x.com, one tap at a time.
- [Tweet Hunter alternative](https://spacerrx.com/alternatives/tweet-hunter): Looking for a Tweet Hunter alternative? Tweet Hunter searches 2M+ past viral tweets. SpacerrX shows what is taking off right now, inside x.com.
- [Typefully alternative](https://spacerrx.com/alternatives/typefully): Looking for a Typefully alternative? Typefully is the better thread writing studio. SpacerrX is built for the daily reply loop inside x.com.
- [SuperX alternative](https://spacerrx.com/alternatives/superx): Looking for a SuperX alternative? Both run inside x.com. SuperX is analytics-first over OAuth. SpacerrX needs no authorization to read.
- [ClimbX alternative](https://spacerrx.com/alternatives/climbx): Looking for a ClimbX alternative? Both find viral niche posts and draft in your voice. SpacerrX runs inside x.com and stores no archive of your posts.
- [GrowthX alternative](https://spacerrx.com/alternatives/growthx): Looking for a GrowthX alternative? GrowthX tells you who unfollowed you. SpacerrX shows who never followed back and lets you unfollow, one tap.
- [Tweepi alternative (Tweepi shut down in April 2023)](https://spacerrx.com/alternatives/tweepi): Tweepi shut down in April 2023 after X API pricing changed. Here is what still does the job: a free, unlimited non-follower tracker in your browser.
- [Unfollr alternative](https://spacerrx.com/alternatives/unfollr): Unfollr tracks unfollows over time. SpacerrX shows who doesn't follow you back right now and then helps you reply, post and schedule. An honest side-by-side.
- [Crowdfire alternative (Crowdfire shut down in May 2025)](https://spacerrx.com/alternatives/crowdfire): Crowdfire shut down in May 2025 after 15 years. If you used it to see who doesn't follow you back on X, here is the free replacement for that specific job.
- [Contact](https://spacerrx.com/contact): reach a human about accounts, billing, or privacy.
- [Privacy Policy](https://spacerrx.com/privacy): what data is collected and how it's protected.
- [Terms of Use](https://spacerrx.com/terms): terms governing the extension and web service.
- [Refund Policy](https://spacerrx.com/refund-policy): the trial is the evaluation path; once a payment is taken it is final and non-refundable.

## Feature pages
- [Non-follower checker](https://spacerrx.com/features/non-follower-checker): No X password needed. SpacerrX reads the browser session you're already signed into and lists who doesn't follow you back, free and unlimited.
- [One-tap replies](https://spacerrx.com/features/one-tap-replies): Save your go-to replies (thanks, congrats, let's connect) and post one in a single tap from X's reply box, name filled in. Never costs credits.
- [AI replies](https://spacerrx.com/features/ai-reply-generator): SpacerrX drafts five replies to any X post in seconds, in your voice and the post's language, right in the reply box. Reply early on big posts to get seen.
- [Trending on X](https://spacerrx.com/features/trending-on-x): SpacerrX surfaces the posts taking off in your niche on demand, with real likes, replies and views, plus custom search and AI post ideas.
- [AI posts](https://spacerrx.com/features/ai-post-writer): SpacerrX writes five original X posts in your voice every time, shaped by proven viral mechanics. Pick the one you like and post it. Free for 7 days.
- [Creator analysis](https://spacerrx.com/features/creator-analysis): SpacerrX pulls any creator's posts, replies and stats, then hands you an AI playbook: their cadence, best hooks, and what to borrow. Chat to go deeper.
- [Viral feed](https://spacerrx.com/features/viral-feed): SpacerrX's viral swipe file saves the posts you spot taking off on X, with their text, so you can study the hooks and formats that work. One tap.
- [Post quality check](https://spacerrx.com/features/post-quality-check): SpacerrX scores any draft on hook strength and likely performance, then refines it in one tap. Catch a weak opener before you post, not after it flops.
- [Tracked accounts](https://spacerrx.com/features/tracked-accounts): SpacerrX keeps the accounts that matter in your niche one click away, sorted into groups, so you can reply early on their posts and reach their audience.
- [Post scheduler](https://spacerrx.com/features/post-scheduler): SpacerrX publishes your scheduled X posts at the exact minute you picked, even with your browser closed, through X's official API. Never your password.
- [Ghostwriter](https://spacerrx.com/features/ghostwriter): SpacerrX Ghostwriter is an opt-in autopilot that writes posts in your voice and publishes them on your cadence, each queued ahead so you can edit or skip.
- [Your voice](https://spacerrx.com/features/sound-like-you): SpacerrX distills how you write into a voice profile in about 60 seconds, so every AI post and reply sounds like you. Your posts are read, never stored.

## Blog posts
- [Are X (Twitter) unfollow tools safe to use?](https://spacerrx.com/blog/are-x-unfollow-tools-safe): X does not publish an unfollow limit, which is why every guide gives a different number. What actually gets accounts restricted, and how to clean up safely.
- [How to find out who unfollowed you on X (Twitter)](https://spacerrx.com/blog/who-unfollowed-me-on-x): X never tells you who unfollowed you. How to check whether a specific person did in seconds, what unfollower trackers cost, and why the number often lies.
- [How to turn off read receipts in X (Twitter) DMs](https://spacerrx.com/blog/turn-off-read-receipts-on-x-dms): X sends a read receipt the second you open a DM, and the setting ships on by default. Where it lives, what you give up by turning it off, and the catch.
- [How to reshare your best posts on X](https://spacerrx.com/blog/reshare-your-best-posts-on-x): Your best post reached a fraction of your followers, then vanished. How to recycle proven winners on a schedule instead of always writing something new.
- [AI ghostwriter for X without becoming a bot](https://spacerrx.com/blog/ai-ghostwriter-that-posts-for-you-on-x): Scheduling still makes you write the batch. A ghostwriter writes and posts for you on a cadence, in your voice, with a buffer so nothing goes out unseen.
- [How to schedule posts on X: 6 ways, free and paid](https://spacerrx.com/blog/schedule-x-posts-without-losing-time): Six ways to schedule X posts, from the native scheduler in the composer to tools that publish with your browser closed. What each one can and cannot do.
- [The 11 best X (Twitter) growth tools in 2026](https://spacerrx.com/blog/best-x-growth-tools): SpacerrX, Typefully, Hypefury, Tweet Hunter, GrowthX, ClimbX and more, ranked and compared on price, free tier, account access and ban-safety.
- [50 things to post on X when you have no ideas](https://spacerrx.com/blog/what-to-post-on-x-when-you-have-no-ideas): Fifty post ideas you can use today, grouped by where they come from: live trends, proven shapes, your own replies, and the ones only you can write.
- [How to find trending topics on X: 5 ways](https://spacerrx.com/blog/how-to-find-trending-topics-on-x): Five ways to find what's trending on X, from the Explore tab and location settings to the niche trends X will never show you in a trending list.
- [Grow on X without getting shadowbanned: 10 rules](https://spacerrx.com/blog/how-to-grow-on-x-without-getting-banned): Automation gets accounts flagged, acceleration does not. Ten rules for growing on X at a safe pace, plus the Japanese reply gap and how to spot a shadowban.
- [How to use AI on X without sounding like AI](https://spacerrx.com/blog/sound-like-yourself-not-like-ai-on-x): Generic AI posts read as slop and grow nothing. How to keep your own voice while writing 10x more, what a voice profile is, and why it beats prompting.
- [Reply-first growth: the fastest way to get seen](https://spacerrx.com/blog/reply-first-growth-on-x): Posting into the void doesn't work at zero followers. Replying under the right posts does. How reply-first growth works, and how to run it in minutes a day.
- [Who's not following you back on X (Twitter)](https://spacerrx.com/blog/find-who-doesnt-follow-back-on-x): X never shows you who is not following you back. How to find non-followers, why the ratio matters, and how to unfollow at a pace that keeps your account safe.

## Common questions
- How it grows an account: showing up early in the right conversations — reply under big accounts in your niche while their posts are fresh — plus consistent posting and cleaning up non-followers. SpacerrX compresses that loop into minutes a day.
- Will it get me banned or shadow-banned: not if you pace it; the tool is built around a safe pace and warns you, but following X's rules is ultimately the user's responsibility.
- Who is in control: the user — every action is a button they press.

## Full content
- [llms-full.txt](https://spacerrx.com/llms-full.txt): this file plus the complete markdown of every blog post.