Explore · The library
Every resource founders actually use, in one library.
The essays, videos, podcasts, books and tools behind every answer across eChai's hubs, from starting up to go-to-market, D2C, founder money and AI, each with a note on why it is here.
What founders use most, ranked by how many answers lean on it.
- A solo technical founder does not need a community team, but you do need to stop doing the same small tasks by hand every day.... Zapier Tool · Setup in an afternoon · Starting Up Community Management Automation with Zapier Zapier
- Benchmarks only matter once you can plot your own cohorts and see whether your curve is flattening, and Amplitude's Retention... Amplitude Docs Tool · Reference documentation plus free product · Starting Up Amplitude Retention Analysis (chart documentation) Amplitude
- Most churned users will never reply to your email or hop on a call, so your best shot is a one-line reason captured right where... tally.so Tool · Set up in under 10 minutes · Starting Up Subscription Cancellation Survey Template Tally
- The specific worry in the question is people gaming the program, so here is a concrete, working example of what fraud detection... Rewardful Tool · product page · Starting Up Rewardful: Self-Referral Fraud Detection Rewardful
- Once your referral program needs commission tracking, coupon links, and payouts tied to real revenue, hand-rolling all of that... Rewardful Tool · Pricing page, plans from 49 dollars a month · Starting Up Rewardful: Affiliate and Referral Software Pricing Rewardful
- For a transactional or one time purchase product, retention lives in lifecycle nudges: onboarding, cart recovery, post purchase... Customer.io Tool · Product / platform · Starting Up Customer.io (lifecycle and behavioral messaging platform) Customer.io
- A raw wa.me link gets the message shared but tells you nothing about who referred whom, so once sharing works you need... AppsFlyer Tool · Long-form guide plus product · Starting Up WhatsApp deep links: How to create, use, and measure them AppsFlyer
- Reading about k-factor is one thing, measuring your own is another. This is a plug-in-your-numbers spreadsheet: enter your user... Rows Tool · Free web tool · Starting Up Virality (k-factor) Calculator and Spreadsheet Rows
- If you decide usage pricing is right, this is real billing infrastructure that meters events in real time and lets you set... Metronome Tool · Product site, plus docs · Starting Up Metronome: Usage-Based Billing Platform Metronome (now part of Stripe)
- This is the template to stop guessing a single LTV number and plot your actual cohorts instead. You type in only the basics... andrewchen.com Tool · Downloadable Excel template plus short guide · Starting Up The easiest spreadsheet for churn, MRR, and cohort analysis Christoph Janz (Point Nine Capital), guest post on Andrew Chen's blog
- A free, driver-based Google Sheets model where you plug in your own assumptions and actuals and watch the numbers flow through... Drivetrain Tool · Free Google Sheets template, roughly 30 to 60 minutes to populate · Starting Up SaaS Financial Model Template in Google Sheets Drivetrain
- If you are building from an Indian base and selling worldwide, this is a practical, India-registered way to take card and... Razorpay Tool · Product page plus docs · Starting Up Accept International Payments for Global Business (Razorpay) Razorpay
- The infrastructure margin leak usually shows up as a bill that crept up while you were shipping, so the fix is seeing it before... vantage.sh Tool · Self-serve setup, roughly 30 minutes · Starting Up Vantage Vantage
- This is a ready folder structure (sections A to M covering legal, IP, employment, financials, and cap table) that you can stand... alexanderjarvis.com Template · Downloadable checklist (folders A to M) · Starting Up Due Diligence Request List Template for Startup Fundraising Alexander Jarvis
- This is the data-room number, not the slide: a free, download-and-fill spreadsheet from a Point Nine partner that builds MRR... SaaStr Template · 20 min setup · Starting Up SaaS Financial Plan 2.0 (Christoph Janz's downloadable model) Christoph Janz (Point Nine Capital)
- This is the exact 21-slide deck that got Front three term sheets in ten days, published by the founder herself with honest... Medium (Mathilde Collin, CEO of Front) Template · 12 min read + 21-slide deck · Starting Up Front Series A Deck (with the founder's own slide-by-slide feedback) Mathilde Collin
- This is the modeling tool to actually stack your conversions before you sign, which is the whole opinionated answer. You enter... Carta Tool · free tool · Starting Up SAFE and Convertible Note Calculator Carta
- This is the actual term sheet most Indian angels and seed funds put in front of you, hosted on the official Startup India... Startup India (Government of India portal) Template · term sheet PDF · Starting Up LetsVenture Standard CCPS Term Sheet Template (India), Pre-emptive Rights clause LetsVenture
- This is the source of the rule your answer is built on: build the deck from the reports you already run the company with, send... Sequoia Capital Template · 15 min read · Starting Up Preparing a Board Deck Sequoia Capital
- For a contractor in another country, the two things that bite you are IP ownership and misclassification, and this free... Deel Template · template · Starting Up Independent Contractor Agreement Template (with country-specific IP guidance) Deel
- Written by the talent team at a VC that hires for its portfolio full-time, so it is a recruiter's actual playbook, not generic... SignalFire Template · 15 min read · Starting Up Startup Job Description Template Crystal Guerrero (Director of Talent Operations)
- This turns your 'written, specific milestones on day one' into an actual document you can hand a new hire, with a phased... Asana Template · 15 min read · Starting Up How to write a 30-60-90 day plan (with template and examples) Asana
- This is the single doc your first hire should walk into. It is built for a founder without an HR team, splits the first three... FirstHR Template · downloadable DOCX, 15 min to adapt · Starting Up Free 30-60-90 Day Plan Template for Small Business FirstHR
- This is the concrete, copy-paste artifact the other two essays lack: a real JD skeleton (summary, Who You Are, nine... vChief Template · 12 min read · Starting Up Chief of Staff Job Description, Duties & Interview Questions vChief
The hubs
Starting Up
Find an idea, validate it, build, and land your first customers.
GTM
Go-to-market, from breaking in to how the best teams do it.
D2C
Building a direct-to-consumer brand, India-first.
Wealth
Paying yourself, ESOPs, secondaries, and de-risking founder wealth.
How Founders Use AI
How founders actually put AI to work, mapped topic by topic.
Glossary
Plain-language definitions of the startup and VC terms you'll hit.
eChai Partner Brands
The partnership →