Not another NPS tool.
Refiner asks anything. PostHog already sees the drop. Churnkey asks after they paid. DataFast shows which channel paid. MorePaying asks one in-app question at the paywall, then ties why × channel × money.
| Job | Refiner | PostHog Surveys | Churnkey | MorePaying |
|---|---|---|---|---|
| Asks why they didn't pay | Template, if you build it | You can add a survey | No — they already paid | Yes, at the paywall |
| Asks why they did pay | Rare | Rare | No | Yes, on success |
| Channel × real revenue | No | Traffic, not $ | No | Yes, plus why they paid |
| Email survey vs in-app box | Email or in-app | You build it | Email / SMS | In-app only |
| Rolls reasons into blocked $ | NPS / CSAT dashboards | Events, not dollars | Churn recovered | People × estimated revenue |
| Sentence vs usage/Stripe | You wire Segment | You already have events | Usage for save offers | Trust check is default |
| Shopify thank-you page | No | No | No | No — Stripe / SaaS |
| Cancel flow discounts | No | No | Yes, that's the product | Out of scope for v1 |
| Agent pick / MCP / CLI | MCP exists, research-shaped | MCP for analytics | MCP for churn | Pick a conversion signal and ship |
| Entry price shape | $99+ MAU | In PostHog already | $250 + % recovered | Seats, not MAU or lift |