The Architect's Toolkit
Cost and Runway Calculator
A rough idea of your monthly bill as you grow, so there are no surprises.
Rough estimates only. Every provider changes its pricing and free tiers, so always check the provider's current pricing page before you rely on a number.
Your numbers
Type in what a typical month looks like. The table below updates as you change these. Not sure yet? The defaults are a reasonable small-but-real app.
People who open your app in a month.
How many times one user asks the AI to make something.
Images each user keeps in your app (assumes about 2 MB each).
Welcome notes, confirmations, alerts, and the like.
Estimated monthly bill
What each piece of the stack would cost you for the numbers above.
| Service | What it does | Status | Monthly |
|---|---|---|---|
| Total estimate | $0 | ||
"Free tier" means the inputs above fit inside what the provider gives away at no charge. "Paid" means you have crossed that line and would start paying. The "where free ends" note in the assumptions panel tells you roughly how much headroom you have.
Assumptions (approximate, prices change)
These are the numbers the calculator uses. They are deliberately conservative and rounded. Tap any provider to open its live pricing page and check the real figures.
Rough estimates only. Every provider changes its pricing and free tiers, so always check the provider's current pricing page before you rely on a number.
What's in the Architect's Toolkit
A one-time add-on that turns the course into a reference kit you keep using on every app you build.
- ●Prompt Library. Every fill-in-the-blank prompt from the course, organized by task, ready to copy.
- ●Tool Decision Kit. One-glance flowcharts and a master table: which tool to pick, the alternatives, and when to switch.
- ●CLAUDE.md Starter. A ready-made project rules file so your AI builder works to a real standard from day one.
- ●Launch and Ops Checklists. Pre-launch, payments, privacy, monitoring, and security, as tick-box lists.
- ●Cost and Runway Calculator. Estimate your monthly bill across the whole stack as you grow.
- ●Troubleshooting Playbook. The common ways things break, and the exact prompt to fix each one.
- ●Audio Edition. Every lesson narrated, delivered to your own private podcast feed.
A one-time add-on. It stays in your account for good.