Why that grade Case studies come from vendor and blogger write-ups (aimagicx, vibecoder.me, Medium) celebrating success stories — survivorship bias is likely, since failures don't get case-study blog posts written about them. Course-seller index 5/10.
Figures are researched estimates, not guarantees. Check local rules before you trade.
Why anybody pays for this
AI coding tools have collapsed the time and cost to build a working product from months to days, which means the constraint on whether a micro-SaaS succeeds has shifted almost entirely to finding real customers — the winners are the ones who already knew how to reach an audience before they wrote a line of code.
Most solo builders report $0-1,000 MRR in the first 6 months; documented success cases reach $5,000-50,000 MRR within 6-18 months, almost always tied to a founder who already had a distribution channel.
Good fit if
Someone who already has some distribution channel (an audience, a community, a specific professional network) and a genuinely painful problem to solve for it.
Skip it if
Anyone starting from 'what can I build' with zero existing audience or niche access — building is no longer the hard part, and this idea doesn't fix the distribution problem for you.
What actually goes wrong
Building has gotten dramatically easier and cheaper, but distribution has NOT — so competition on any idea with obvious demand has increased sharply, and most 'vibe-coded' apps launch to genuine silence because the founder solved the build problem, not the distribution problem.
AI coding tools removed the build bottleneck, which has sharply increased competition on any idea with obvious demand
Code quality/security from 'vibe coding' can be poor at scale and needs review before handling real customer data or payments
The playbook
6 steps to your first paying customer
What the steps cost
£40
estimate £33–237
Decide
01
Find a narrow, painful, willing-to-pay problem
£0 · 3 hrs
Ideally one you've personally experienced, in a niche where you already have some access or credibility — not a generic 'what can AI build' idea.
Done when You can state the specific problem, who has it, and why you personally have access or credibility in that niche, in one sentence.
02
Validate with 10-20 real conversations or a waitlist
£0 · 4.5 hrs
Before writing any code, confirm real people would pay for this specific thing — not just say it sounds useful.
Done when You've had 10-20 real conversations or collected waitlist sign-ups from people who confirmed they'd pay for this specific thing.
4 more steps in this playbook
The rest of the playbook: what to charge, what you need in place before you take money, where the first customers come from, and what each step costs.
Very easily now — AI coding tools mean a competitor can clone a simple, obvious feature set within days of seeing it work.
01
Proprietary data or integrations that accumulate the longer customers use the product
02
A specific, boring, underserved vertical niche that generic AI-native competitors haven't targeted
03
Distribution advantages (an audience, community trust, SEO content) that a cloned feature set can't copy
Exit options
Sell on a micro-SaaS acquisition marketplace (Acquire.com, Flippa, Microns) once revenue is verified and stable, typically at 3-10x ARR depending on growth.
What changes where you are
Same idea, different rules. One playbook, with the facts that actually differ overlaid per market.