An AI app reached $17,000 MRR in four months using Reddit alone
Diego Roshardt had fewer than 100 followers on X and says Reddit brought over 1 million views and 20,000 signups.
Subject: AppAlchemy (Diego Roshardt)Subscription AI SaaS

Case Overview & Background
Diego Roshardt built an AI SaaS called AppAlchemy in about two weeks and marketed it only on Reddit. He reports more than 1,000 paying customers, around 20,000 signups and margins of about 70%.
How AI Is Used
Step-by-Step Process
He built for a pain he had experienced himself.
Built with Cursor, Next.js, React and Firebase.
Targeted precise subreddits for free reach.
Customer Acquisition & Distribution
Limitations, Risks & Failure Modes
What may not apply to you, and what could go wrong:
- Self-reported
- Reddit communities can ban self-promotion
- AI API costs scale with usage
Key Takeaways
- Reddit gives precise targeting for free
- A small audience is not a blocker
- Know your margins: he cites about 70%
Sources
Starter Story: How I Used Reddit to Hit $17K MRR (With ZERO Audience)
Note: Video interview transcript; 1K+ paying customers, ~70% margin.
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