ChurnAutopsy Interview: Automated Win/Loss Interview Caller for B2B Micro-SaaS

The Problem

B2B micro-SaaS founders on r/indiehackers and HN consistently report that they know their churn rate but have no idea *why* customers cancel — exit surveys get ignored and scheduling live interviews with churned users is nearly impossible. ChurnAutopsy Interview triggers an automated outbound phone call (via Twilio + ElevenLabs voice) to churned users within 2 hours of cancellation, conducts a 3-minute structured win/loss interview, transcribes and categorizes the response, and delivers a weekly digest of cancellation themes with verbatim quotes. It gets 10x more signal than email surveys because calling feels personal and catches users before they mentally move on.

Target Audience

B2B micro-SaaS founders with 50–500 paying customers who have a measurable churn problem but no dedicated customer success team

Monetization Angle

$29/mo base (up to 50 calls/mo) + $0.45 per call overage; annual plan at $249 — priced as a fraction of one recovered churned customer

Recommended Tech Stack

Why Now

ElevenLabs' conversational voice AI has reached a quality threshold where automated calls no longer feel robotic, making voice-based research automation viable for the first time without a call center.

MVP Scope

Stripe webhook fires on subscription cancellation, triggers a Twilio call with a pre-scripted ElevenLabs voice, records the response, transcribes via Whisper, and emails the founder a plain-text summary.

AI Angle

AI conducts the actual interview — it listens to the customer's response, asks one contextual follow-up question based on what they said, and then synthesizes all weekly calls into a themed churn diagnosis report.

Primary Risk

Cold outbound calls from unknown numbers face voicemail rates above 70% in most markets, and TCPA compliance in the US creates legal exposure that could require per-state opt-in consent frameworks.

Validation Checklist

• Post on r/indiehackers: 'Would you use an automated voice call to interview churned customers? What's your current win/loss interview process?' and measure the ratio of 'yes' to 'that's creepy'
• Manually conduct 10 phone interviews with churned customers for 3 different founders and document the conversion rate from dial to completed interview to calibrate call completion expectations
• Build a Typeform + Zapier + Twilio prototype for one willing founder and measure actual call answer and completion rates over 30 days before building the full product
• Consult a TCPA attorney on the minimum viable consent mechanism needed for B2B SaaS cancellation calls to ensure the legal risk is manageable for an indie builder

Who Would Pay For This

Likely buyers are founders, operators, and small teams with a recurring business process. Start with B2B micro-SaaS founders with 50–500 paying customers who have a measurable churn problem but no dedicated customer success team and validate whether this can replace a spreadsheet, manual review, or consultant workflow.

First 10 Users

Find the first 10 users by searching for recent complaints around "SaaS indie hacker" in Multiple Sources, developer communities, GitHub issues, and niche Slack or Discord groups. Offer a concierge version first: manually solve the workflow for a few users, then automate only the repeated steps.

More Developer Search Paths

Why This Idea Has Legs

• Sourced from real discussions and complaints across Reddit and social media
• Cross-checked against recurring demand signals in the IdeaGenius archive
• Difficulty rated Hard — buildable by a solo developer or small team
• Clear monetization path from day one

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