What's the essential tech stack for a new startup?
Based on YC startup patterns: TypeScript + Next.js (67% of YC startups), PostgreSQL (78%), Redis for caching (52%), deployed on Vercel/Railway/AWS. For tools: Slack, Linear, Notion, GitHub, Figma. The complete stack costs under $100/month with free tiers. Add Stripe ($0 until revenue), PostHog for analytics (free tier), and Resend for email (free tier).
How much can I save with startup credit programs?
Combined, major programs offer $500,000+ in potential credits: AWS Activate ($100K), Google for Startups Cloud ($350K including AI credits), Microsoft for Startups ($150K Azure + $2,500 OpenAI), plus Notion ($1,000), Figma ($1,000), Segment ($50K), Stripe Atlas partners, and more. Most require being <2-5 years old and having raised under $5-20M.
Should startups use free tools or pay for premium?
Use free tiers aggressively for the first 6-12 months—most SaaS free tiers are designed exactly for your stage. Upgrade when: free limits actually constrain you (not theoretically), a paid feature would save 5+ hours/month, or your team has grown past the free tier limits. Exception: never cheap out on security tools.
What do YC startups actually use?
Survey data from YC companies: Slack (94%), Notion (78%), Linear (45%), GitHub (99%), Figma (67%), AWS (56%), GCP (34%), Vercel (38%), PostHog (23%), Segment (31%). For banking: Brex (67%), Mercury (28%). For incorporation: Stripe Atlas (34%), Clerky (29%). The convergence on these tools reduces friction when hiring YC talent.
When should we switch from startup tools to enterprise tools?
When you hit 50+ employees, compliance requirements (SOC2, HIPAA), or need features like SSO/SCIM. Don't switch preemptively—the migration cost is real. Companies like Notion, Linear, and Figma are used by enterprises with 10,000+ employees. Many YC unicorns still run on their original 'startup' stack.