Cost Calculator
See when free tiers run out and plan your infrastructure budget as you grow.
Your Starting Point
Growth Projection
Your Stack
Authentication
Hosting
Background Jobs
Payments
Analytics
Database
Email Sms
File Storage
Infrastructure costs free until ~81 users
Payment Processing Fees
These are revenue share fees — they scale with your income, not your infrastructure.
StripePayment fees eat into profit, not infrastructure budget. They're shown separately.
When Free Tiers Run Out
Supabase AuthFree throughoutSupabaseFree throughout
ResendFree throughout
NetlifyFree throughoutInfrastructure Cost Breakdown
| Month | Users | MRR | Supabase Auth | Supabase | Resend | Netlify | Infra Cost | Payment Fees | Profit |
|---|---|---|---|---|---|---|---|---|---|
| 0 | 25 | $250 | Free | Free | Free | Free | $0 | $9 | $241.25 |
| 3 | 29 | $290 | Free | Free | Free | Free | $0 | $10 | $279.85 |
| 6 | 34 | $340 | Free | Free | Free | Free | $0 | $12 | $328.1 |
| 9 | 39 | $390 | Free | Free | Free | Free | $0 | $14 | $376.35 |
| 12 | 45 | $450 | Free | Free | Free | Free | $0 | $16 | $434.25 |
| 15 | 52 | $520 | Free | Free | Free | Free | $0 | $18 | $501.8 |
| 18 | 60 | $600 | Free | Free | Free | Free | $0 | $21 | $579 |
| 21 | 70 | $700 | Free | Free | Free | Free | $0 | $25 | $675.5 |
| 24 | 81 | $810 | Free | Free | Free | Free | $0 | $28 | $781.65 |
Key Milestones
How This Calculator Works
This cost calculator uses real pricing data from popular developer tools to project your infrastructure costs as you scale. Select your tech stack, adjust your growth assumptions, and see exactly when free tiers will run out.
Why Free Tiers Matter for Bootstrappers
Most SaaS tools offer generous free tiers specifically designed for startups and indie developers. Understanding exactly when you'll hit these limits helps you budget realistically and avoid surprise costs as you grow.
Frequently Asked Questions
How accurate are these projections?
These projections are based on official pricing documentation and are meant for planning purposes. Your actual costs may vary based on usage patterns, negotiated rates, and pricing changes. Always verify current pricing with each provider.
What if my tool isn't listed?
We're constantly adding new tools. The calculator currently focuses on the most popular options for authentication, database, email, analytics, and payments. Contact us to request a specific tool.
Why are payment processor fees separate?
Payment processing fees (like Stripe's 2.9% + 30¢) are revenue-share fees that scale with your income, not your infrastructure usage. They're shown separately because they represent a fundamentally different type of cost.