The $20/Month SaaS: How I Built TopFlow on a Budget
Most MVPs cost $500-1,000/month in infrastructure. TopFlow runs on $20/month. Here's the complete stack breakdown and why it's possible without sacrificing quality.
Updated June 17, 2026
Fixed two inconsistencies: the "standard stack" heading now matches its itemized total, and the count of architectural decisions matches the list.
Typical SaaS Infrastructure Costs
Before diving into TopFlow's budget approach, let's establish a baseline. Here's what most MVPs spend:
Standard SaaS Stack ($220-450/month)
TopFlow's $20/Month Stack
TopFlow runs on a radically different architecture that eliminates most infrastructure costs:
TopFlow Infrastructure Breakdown
How This Is Possible
Three architectural decisions enable this dramatic cost reduction:
1. No Database = $0
Eliminates database hosting costs entirely.
2. Serverless = $0 Idle Costs
Scale to zero when no one is using the app.
3. BYOK Model = $0 API Costs
Users provide their own AI provider API keys.
Key Takeaways
- Challenge assumptions: Do you really need a database?
- Embrace serverless: Pay only for what you use
- Privacy = Cost savings: Not storing data is free
Want to see a $20/month SaaS in action? Try TopFlow at topflow.dev.