Comparison
GrowthX alternative: how SpacerrX compares
First, the disambiguation: this page is about growthx.so, the X (Twitter) creator dashboard. It is not GrowthX the executive-education company, and not the B2B LinkedIn outreach tools that share the name. GrowthX is the one tool here that takes follower data as seriously as SpacerrX does, which makes this the most useful comparison on the list and the one where the split is sharpest. They answer two different questions about your followers, and only one of them lets you do something about the answer.
The short answer
GrowthX is a creator dashboard you authorize against your X account, and it scans your recent posts to personalise itself. It drafts several distinct angles per topic with a predicted engagement range across many languages, schedules to the exact second, reports growth from 24 hours out to a year with a forecast, tracks any creator's growth rate, top posts, formats and best hours, and runs daily scans of your follower list to tell you exactly who followed and who unfollowed you, with one-click follow-back.
SpacerrX is the closer match on acting rather than watching, and GrowthX genuinely wins one row here: it tells you who unfollowed you, which SpacerrX does not track at all. SpacerrX answers the other question, who you follow that never followed you back, and unlike GrowthX it can act on it. Every account on that list is one tap to unfollow, pace-warned. It also runs inside x.com and needs no authorization to read your own lists.
Side by side
| Feature | SpacerrX | GrowthX |
|---|---|---|
| Form factor | Chrome extension (Manifest V3), works inside x.com | Web app dashboard |
| Account access | Reads and unfollows run in the X session you are already logged into: no authorization step, no password. Publishing scheduled posts uses an official X connection you authorise once and can revoke | You authorize their app, and it scans your recent posts to personalise itself |
| Who unfollowed you | Not tracked | Yes, from daily scans of your full follower list, with one-click follow-back |
| Who never followed you back | Yes, free and unlimited, with follows-back and verified filters | Not offered |
| Unfollowing | One tap each, pace-warned. 20 a month free, unlimited on the Creator plan | Not offered. It can follow back, but not unfollow |
| AI writing | Four questions and a wildcard every time you open the composer, your own answer sharpened into three versions, plus five replies at a time, all written from the voice profile created during onboarding | Several angles per topic with a predicted engagement range, across many languages |
| Creator research | Deep-dive any creator, plus an AI playbook and chat about what works for them | Track any creator's growth rate, top posts, format breakdown, and best hours |
| Trend research | The Topics you save shape which questions you get asked; the niche search runs server-side inside a generation and there is no separate trending tab | A swipe-deck of viral inspiration |
| Post scheduling | Yes. Scheduled posts publish with your browser closed, plus opt-in Ghostwriter that drafts and queues on a cadence you set | Yes, fired at the exact second you set |
| Analytics | Creator analysis: deep-dive any creator plus an AI playbook and chat. No dashboards for your own account | Growth from 24 hours to a year, with a 30-day forecast and performance badges |
| Priced by | A monthly AI credit pool. Follower count and account size never change the price | Plan tier, with a daily credit allowance |
GrowthX details verified from their public product pages on July 26, 2026. We deliberately don't quote their prices here, since they are tiered and change over time. Check their site for current details.
When GrowthX is the better pick
- You want to know who unfollowed you, which SpacerrX does not track at all.
- You want growth graphs and a forecast on your own account.
- You want a predicted engagement range attached to each draft before you post.
- You want one-click follow-back on people who just followed you.
When SpacerrX is the better pick
- You want to act on the list, not just read it: every non-follower is one tap to unfollow, pace-warned.
- Your actual question is who never followed you back, not who left.
- You would rather not authorize an app that scans your posts to personalise itself.
- You want the reply and post loop sped up inside x.com, not another dashboard to check.
Other alternatives to GrowthX
SpacerrX is not the only option, and it is not the right one for every job GrowthX was doing. These are the tools worth looking at, and what each of them is actually best at.
Unfollr
Pick it if the only part you use is unfollower tracking: it stores audience snapshots in your browser and tells you who unfollowed and when.
Compare Unfollr with SpacerrXSuperX
Heavier own-account analytics brought into x.com, plus engagement automations. It starts at $49 a month, so it is a step up in price.
Compare SuperX with SpacerrXCircleboom
A management dashboard for bulk cleanup and scheduling across several networks, working through the official API as an X Enterprise Developer.
Compare Circleboom with SpacerrX
Common questions
- What is the best GrowthX alternative for X?
- It depends which half of GrowthX you use. If it is the growth graphs, the forecast, and knowing who unfollowed you, SpacerrX does not replace that and you should stay. If it is the drafting and the follower list, SpacerrX covers both and adds the thing GrowthX cannot do: unfollowing the accounts that never followed you back, one tap at a time, from inside x.com.
- Does SpacerrX tell me who unfollowed me?
- No, and GrowthX is better than SpacerrX on this specific point. SpacerrX compares your following list against your followers list to show who does not follow you back right now, which is a snapshot rather than a history, so it cannot tell you that someone left. If unfollow notifications are the feature you actually want, GrowthX runs daily scans for exactly that.
- Can GrowthX unfollow people for me?
- No. Per their own site it tracks who followed and unfollowed you and offers one-click follow-back, but there is no unfollow. That is the gap SpacerrX fills: the accounts that don't follow you back are listed and each one is a single tap to unfollow, with a warning when your pace looks risky.
- Do both tools need access to my X account?
- GrowthX does: you authorize it and it scans your recent posts to personalise itself. SpacerrX splits this. Reading your lists and unfollowing happen in the session you already have open, with no authorization step and no password. Only publishing scheduled posts uses an official X connection you authorise once and can revoke, because a post has to fire while your browser is closed.
Other comparisons
SpacerrX vs SuperX
Looking for a SuperX alternative? Both run inside x.com. SuperX is analytics-first over OAuth. SpacerrX needs no authorization to read.
CompareSpacerrX vs ClimbX
ClimbX finds breakout niche posts and self-learns from edits and results. SpacerrX adds quests, replies and free follower cleanup inside x.com.
CompareSpacerrX vs 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.
CompareTry the follower tools free
The non-follower tracker and 20 unfollows a month are free with no card, so you can try it on your own account before paying for anything.