Automated churn exit-interviews for SaaS founders

What to build

A self-serve churn-interview tool for SaaS founders: connect Stripe (or a CRM) to auto-detect canceled/inactive customers, send personalized exit-interview emails on autopilot, collect replies, and cluster them into recurring churn reasons (pricing, bugs, onboarding, missing features) in a simple dashboard.

Solo SaaS founders already reach out manually (or pay ~$99 one-off) to ask churned customers why they left, but there's no self-serve tool that automates the outreach and turns replies into structured, actionable churn-reason data.

Demand

Solo and small-team SaaS founders who can't justify enterprise retention suites (Gainsight, ChurnZero) want a cheap, fast way to know why specific users canceled, especially right after a churn spike or before a pricing change.

• Reddit r/microsaasCommunity discussion

  Thread titled 'Founders dealing with churn. I'll personally reach out to your lost customers and find out why they left,' describing a manual, personal $99 service for churn-reason discovery — direct evidence a builder is already monetizing this need manually with no self-serve tool in place.

Stack

• Stripe API (canceled subscription webhooks)
• Postmark or Resend (transactional email)
• OpenAI API (draft personalization + response clustering)
• Supabase (auth, data storage)
• Next.js
• Typeform/Delighted-style reply collection or simple reply-to-email parsing

Solo + AI difficulty

MVP is very buildable solo with AI: Stripe webhook ingestion, templated email sends, and LLM-based clustering of free-text replies are all well-trodden patterns, roughly 2-3 weeks to a usable v1. The hard parts are deliverability (avoiding spam filters on cold-ish outreach) and getting response rates high enough for clustering to be meaningful, which is more a copywriting/UX problem than an engineering one.

Entry threshold

A solo builder can ship an MVP in 1-3 weeks using Stripe API, email/LinkedIn outreach automation, and an LLM to draft messages and summarize feedback into themes; no licences needed, though deliverability and LinkedIn automation limits add some friction.

Window

3-6 months

Where to find first users

• r/microsaas
• r/SaaS
• Indie Hackers
• Product Hunt launch
• Direct outreach to solo SaaS founders on Twitter/X indie hacker circles

Competitors

• Gainsight
• ChurnZero
• Vitally
• Delighted

Counter-signals & risks

• Exit-interview response rates from already-churned customers are typically very low, which undermines the statistical value of clustering and win-back testing.

• Established retention and feedback platforms (Gainsight, ChurnZero, Vitally, Delighted) may already cover significant parts of this workflow, reducing differentiation for a new entrant.

• Automating personalized outreach (especially via LinkedIn) to churned customers raises ToS, anti-spam, and privacy concerns (GDPR/CAN-SPAM) that could limit scalability or create legal exposure.