Is your growth compounding — or just expensive?
Most SaaS founders describe a flywheel they intend to have. The Flywheel Diagnostic surfaces which loops are evidenced in your product today, what the economic signals say about compounding, and where the narrative diverges from observable reality.
No account needed. Paste your product URL to pre-fill what Charex can read from public signals.
Who this is for
SaaS founders and investors who want to know whether growth is becoming self-sustaining or whether it depends on continuous paid fuel.
Founders
Before a Series A when investors will ask about flywheel mechanics
Investors
During diligence — distinguish narrative from observable loops
Growth leads
When organic growth share is lower than expected
What it reveals
- →Which growth loops exist in your product (viral, data, network, expansion)
- →Whether those loops are operational — evidenced by behaviour — or aspirational
- →The friction points slowing each loop and where the compounding breaks
- →What your CAC payback, NRR, and organic share say about economic compounding
- →The single condition most likely to break your flywheel if unresolved
What it does not tell you
- ✕How to fix or strengthen the flywheel — only what the current state is
- ✕Whether you should build new loops — only whether existing ones are working
- ✕Competitive benchmarks or industry comparisons
- ✕NRR, CAC, or organic growth share — those must come from you
How the URL-first intake works
Paste your product URL. Charex reads your public page and pre-fills every answer it can find from public signals — with the source excerpt shown. You review, correct, and fill the gaps. Economic metrics (NRR, CAC payback) can't be read from a landing page — those come from you, and Unknown is a valid answer.
Find out if your flywheel is real or rhetorical.