While they hire, you ship. Pick a plan.

Self-serve. Cancel anytime in two clicks. Failed Cloud Run builds auto-refund the credit. No sales call. No "let's hop on a quick call." Stripe handles the boring parts.

Plan: Hacker · renews Jun 06, 2026 7 / 10 previews used this month

Free

Tire-kicker

One preview a month. Watermarked. Just enough to mock a YC batch on Twitter.

$0/ forever

{check} 1 preview / month
{check} Cloud Run subdomain (whyc.app/p/…)
{check} Spec-fit score visible
{x} Self-improvement loop capped at 1 pass
{x} "Built with WhyC" footer

Hacker

Most picked Current plan

Ship a prototype every weekend. Convergent spec-fit. Real custom domain.

$29/ month

{check} 10 previews / month
{check} Self-improvement loop until 90%+ spec-fit
{check} Custom domain (CNAME)
{check} Phoenix trace export
{check} Auto-refund on failed builds

Founder

$10k MRR fuel

Unlimited previews. Convergence to 96%+. For the serial founder doing 5 ideas a week.

$99/ month

{check} Unlimited previews (fair-use 100/mo)
{check} Loop converges to 96%+ spec-fit
{check} Priority Cloud Run region pinning
{check} Invoice PDF + VAT fields
{check} Email support < 24h (no Slack Connect, sorry)

Recent invoices

Hacker plan · May 2026 May 06 Paid PDF

Hacker plan · Apr 2026 Apr 06 Paid PDF

Credit · failed build (job-82957) Apr 19 Refunded PDF

Hacker plan · Mar 2026 Mar 06 Retried PDF

Payment method

Card: Visa ···· 4242 — exp 09/29
Billing: Sejun Kim — Seoul, KR
Tax: VAT collected via Stripe Tax
Next charge: $29.00 on Jun 06, 2026

Dunning is on. If a charge fails, we retry 3x over 7 days, email you, and pause new previews — never silently cancel. (Last triggered: never.)

Powered by Stripe Checkout · webhook invoice.payment_succeeded decrements your preview counter in Firestore · all amounts in USD · cancel anytime, prorated refund on annual. Built in 4 days. While they were hiring.