SuperX: an X growth tool at $22K MRR (Stripe-verified), built by a solo developer coding with Claude Code
A web app and Chrome extension that shows which posts went viral on X and why, then helps you write, schedule and engage to grow your own account.
$22,281 MRRper month, 523 active subscriptions; TrustMRR, Stripe-verified, as claimed
- Verification
- Verified Revenue read from a payment provider via a public third-party profile (e.g. TrustMRR) that matches the claim. See verification.
- App type
- Marketing & social
- Currency
- US dollars (USD)
- Built with
- Claude Code
- Got customers via
- X, Building in public
- Prior audience
- Not stated in the source
- Source
- Rob Hallam (founder), Starter Story on YouTube, Dec 28, 2025
“We're doing $13,000 a month right now in monthly recurring revenue entirely through $29 a month subscriptions”
Editor's note: Rob Hallam is a software engineer with a computer science degree. After a layoff he spent two and a half years launching five products that made nothing, then ran a development agency that got clients through his X posts. SuperX began as a Chrome extension bought by Tibo Louis-Lucas (co-founder of Tweet Hunter); Rob partnered with him and built the SuperX web app. In the interview he says he uses Claude Code for his AI-assisted coding (about $200 a month). He doesn't say how much of SuperX it wrote. TrustMRR lists SuperX as founded in August 2025 and based in France.
How they got customers
Building in public on X every day. His launch post got about 32,000 views and 26 signups; a selfie post the same day got over 46,000 views and added $1,000 in MRR within 24 hours. He then used SuperX to grow SuperX: find what goes viral, make his own version, double down on the hits.
Steps to try
Share the failures as well as the wins; a viral post about his five failed products brought his first $3,000 agency client.
From the sourceCharge from day one and build a painkiller, not a vitamin.
From the sourceUse your own product to grow your product; he grew SuperX on X with the system built into SuperX.
From the sourcePick one stack and learn it deeply instead of chasing new tools (his: Next.js, Node.js, Tailwind, SQLite, with Claude Code for coding).
From the sourceWhen you post revenue screenshots, link a payment-provider profile so readers can check the number.
Our suggestion
"From the source" steps summarize the linked post. "Our suggestion" steps are general practice from us, not claims by the founder.
Source
We summarize and link. Figures are reproduced as stated and are unaudited unless marked Verified. Founder? Request a correction or removal.
Quick answers
How much does SuperX make?
SuperX reports $22,281 MRR (per month, 523 active subscriptions; TrustMRR, Stripe-verified, as claimed). Source: Rob Hallam (founder), Starter Story, Dec 28, 2025. Proof level: Verified. Revenue read from a payment provider via a public third-party profile (e.g. TrustMRR) that matches the claim.
What was SuperX built with?
The source says it was built with Claude Code.
How did SuperX get customers?
Main growth channels: X and Building in public. Building in public on X every day. His launch post got about 32,000 views and 26 signups; a selfie post the same day got over 46,000 views and added $1,000 in MRR within 24 hours. He then used SuperX to grow SuperX: find what goes viral, make his own version, double down on the hits.