Micro SaaS

Why it matters

Micro SaaS is the honest label for what most solo founders are actually building, and naming it correctly changes the decisions. Realistic outcomes cluster between $1k and $20k MRR; the $50k MRR solo success stories exist but are outliers, so plan costs and expectations around the median, not the screenshot. Because you have no team, scope discipline is the whole game: one problem, one customer type, one channel. The classic micro SaaS trap is platform risk, since many of these products live on top of someone else's API or marketplace (Shopify apps, Chrome extensions, Twitter tools) and a single policy change or first-party feature can erase the business overnight. The upside is that at $10k MRR with 90% margins and no investors, you personally keep more than many venture founders ever will. Judge ideas by whether 200 people will pay $50 per month, not by whether the market is huge.

Worked example

A developer builds an email digest tool for Shopify store owners at $29 per month. At 300 customers that is $8.7k MRR, roughly $100k per year in revenue with maybe $500 per month in hosting and tooling costs. It will never be a unicorn, and it does not need to be.

Common mistakes

• Building the entire business on one platform's API without checking its policy history or whether the platform ships your feature natively
• Expanding scope toward a full-suite product that one person cannot support
• Underpricing at $5 to $9 per month, which forces consumer-scale customer counts a solo founder cannot acquire
• Comparing yourself to venture-backed competitors and copying their roadmap instead of staying narrow

Related terms

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