If you run a small Shopify DTC store, the single most useful question you can ask a buyer is still “how did you hear about us?” Not because the answer is clean (it isn’t; self-reported attribution is biased toward the touchpoint a customer remembers, not necessarily the one that converted them), but because it’s the only read on dark-social, podcast, influencer, and word-of-mouth channels that your ad platforms can’t see at all after the iOS 14.5 reset. For a store spending a few thousand dollars a month on paid ads, a survey that reallocates even 10% of that budget to a channel that actually produces buyers pays for the app many times over. That’s the job we scored for.
Who this is for
This guide is for Shopify DTC store owners doing somewhere between 50 and roughly 5,000 orders a month who are making real paid-ad decisions on bad attribution data. If your store does fewer than 50 orders a month, you probably don’t have enough response volume for the data to be stable yet, and the free plans on Fairing and Zigpoll are the right place to start anyway. If you’re past 10,000 orders a month with an in-house data team, you’re in enterprise-pricing territory and this guide is too small for you.
Our pick: Fairing
Fairing wins on the thing a small DTC owner actually cares about: it offers a free plan on the Shopify App Store, and the attribution reporting ties survey responses back to the order they came from and to the customer’s lifetime value. That last part is what separates a working post-purchase survey program from a widget: once a response is attached to an order, you can see which self-reported channel brings in high-LTV buyers versus one-and-done discount hunters, and that’s the number that moves a budget line.
Every response is tied to order value and repeat purchase so you see which channels drive revenue rather than clicks, and hard-to-track channels like podcast, TV, influencer, and word of mouth are surfaced as first-class use cases. Fairing is rated 5.0 across 196 reviews on the Shopify App Store, and ships AI attribution insights plus integrations with Klaviyo, Google Sheets, Triple Whale, GA4, and Shopify Flow.
The trade-off is real. Fairing’s pricing scales with order volume as a store grows, so a store that just wants NPS and attribution at a stable price forever can do better with Grapevine’s $25-a-month flat plan.
The flat-rate pick: Grapevine Surveys
Grapevine’s pitch is a single line: one app, one price, every feature. It’s a Shopify-native survey app that runs post-purchase, NPS, CSAT, attribution and on-site surveys from one place, with unlimited surveys and unlimited responses on a single flat plan, so collecting more feedback never costs more. The price is $25 a month flat whether you take 100 orders a month or 100,000, and the company is built and owned by the four people who run it with no investors.
That matters more than it sounds for a growing store. Fairing’s order-based tiers mean a store processing more orders pays more each month; a store doing 1,000 orders a month pays $25 a month on Grapevine regardless. If your store is growing and you want a flat line on this spreadsheet row forever, that’s the one argument that wins. Grapevine runs post-purchase, NPS, CSAT, and attribution surveys with targeting by order value, product, country, payment method, and customer type, plus exports to Klaviyo, Shopify Flow, GA4, and Google Sheets, and is rated 5.0 across 233 reviews on the Shopify App Store.
It’s also the natural destination for stores that were on Delighted. Delighted sunsets on 30 June 2026 and all customer data will be deleted; Grapevine positions itself as the Built-for-Shopify replacement for NPS, CSAT, attribution, and post-purchase surveys at a flat $25 a month with unlimited responses.
The honest limitation: Grapevine is deliberately simpler on reporting. If you want to break responses across many Shopify attributes or benchmark against other DTC brands, this isn’t the app.
The free-start option: Zigpoll
Zigpoll is where to start if you want one flexible survey tool across your whole store, not just the thank-you page. It supports post-purchase, on-site, exit-intent, NPS, and email surveys, with zero-party data collection, AI-powered insights, customizable surveys, and native Shopify integration.
Zigpoll offers a free plan on the Shopify App Store, and the app covers post-purchase, on-site, and exit-intent surveys in one place, with 550+ five-star reviews on the Shopify App Store.
The catch is the metering model. Response-based pricing is forgiving for a store that only surveys a sample of buyers, but if you want to survey every customer and your volume climbs, the ceiling arrives faster than it looks on paper. For a store that specifically wants post-purchase attribution tied to orders and nothing else, Fairing’s order-based pricing lines up better. For a store that wants one flexible tool across post-purchase, on-site, and exit-intent, Zigpoll is the practical pick, and the free plan is a low-risk place to prove the data is useful before you pay.
The deepest-reporting option: KnoCommerce
KnoCommerce is the app to pick when you’ve specifically outgrown the reporting in Fairing and Grapevine. It’s a Shopify post-purchase survey platform built for attribution and customer insight, and its standout is depth: targeted audiences and segmentation across Shopify data such as customer lifetime value and cohort analysis, with 30+ templates, conditional logic, NPS, and HDYHAU, plus benchmarking against aggregate response data and Klaviyo and Shopify Flow integrations.
Pricing starts at $19 a month on Starter (one survey, three questions), $119 a month on Analyst (two surveys, up to 999 questions, 12 question types, four audiences, two active integrations), and $299 a month on Pro (four surveys, unlimited audiences, four active integrations). All charges are billed in USD with a 7-day free trial on each tier.
The reason this is the fourth pick for a small-DTC guide, not the first: the real entry price is $119, not $19. The Starter plan at $19 a month is too limited to be useful; one survey with three questions and no integrations is essentially a trial. For a small-team Shopify store that just wants a working “how did you hear about us?” survey wired into Klaviyo, that math is hard to justify when Fairing offers a free plan and Grapevine is $25 flat forever.
How to choose between them
The decision tree is short.
Install Fairing if you want a free plan to start and your top priority is knowing which channels, including the hard-to-track ones, actually produce buyers.
Install Grapevine if your store is growing and you want to lock in a flat $25-a-month line forever, or if you’re migrating off Delighted and want the simplest NPS-plus-attribution replacement.
Install Zigpoll if you also want on-site and exit-intent surveys from the same app, and you’re happy to be metered by response volume rather than orders.
Install KnoCommerce only once you’re spending enough on paid acquisition that multi-attribute segmentation and category benchmarking will actually change a decision. For most small Shopify stores in 2026, that moment hasn’t arrived yet.
Whichever you pick, the data is only useful if it reaches the stack where decisions get made. The two integrations worth confirming before you install are Klaviyo (so a response like “Instagram ad” segments the customer into the right flow) and Shopify Flow (so the response can trigger a tag or a review request). All four apps support both, with the caveat that on KnoCommerce the integrations live above the $19 Starter tier.
If a working post-purchase survey is step one, the next question is usually what to do with the signal it produces. We cover the adjacent getting-customers jobs in our guides to the best AI SMS marketing platforms for small Shopify DTC stores (because a post-purchase survey response is the cleanest trigger for a welcome-sequence SMS), the best AI product recommendation apps for small Shopify DTC stores (for turning self-reported product preferences into on-site merchandising), and, for owners without a marketing hire, the best AI marketing services for small businesses.
