If you run paid ads on Shopify, a post-purchase survey is one of the highest-leverage things you can add. It catches customers at the one moment they're most willing to tell you why they bought: right after they did.
The hard part isn't deciding whether to run one. It's picking the app. So here's an honest rundown of the main options in 2026, including where each one wins, where it doesn't, and where the one I build fits. I'll recommend a competitor outright when it's the better call for you, because the wrong tool for your situation helps no one.
First, decide what you're optimizing for
Every app on this list runs a survey on your Shopify order-status page. They differ on what they're built to do well. Before you compare features, get clear on which of these you actually care about:
- Volume. You want to collect as many responses as cheaply as possible.
- Attribution depth. You want responses matched to revenue and tied into your analytics stack.
- The "why." You want to understand the reason behind each answer, not just the channel, so you know what to scale.
Most merchants think they want more data. What they usually need is data they can act on. Keep that distinction in mind as you read.
Zigpoll, the established default
Zigpoll is the most established post-purchase survey app on Shopify, with hundreds of five-star reviews and a free tier. It's clear, affordable, and battle-tested, with solid attribution dashboards and behavior targeting.
If you want the safe, proven, inexpensive choice and simple multiple-choice surveys cover your needs, Zigpoll is a great pick. Its limitation is structural: the surveys are static forms, so when a customer answers "Instagram," that's where it stops. (More on why that matters below.) If you want the full breakdown, see our Zigpoll alternative page.
Fairing, the deep attribution tool for bigger brands
Fairing (formerly Enquire) is the heavyweight on attribution. It matches survey responses to revenue, integrates deeply with analytics platforms, and is built for larger DTC brands that have a growth person to run it.
If you're a $2M+ brand that needs revenue-matching dashboards and has someone to configure them, Fairing earns its price (roughly $49 to $199 per month). For most smaller Shopify merchants it's more tool, and more cost, than the job requires. Detail on our Fairing alternative page.
Grapevine, unlimited responses at one flat price
Grapevine's pitch is volume: unlimited survey responses at a flat monthly price, with Klaviyo and Shopify Flow built in. If you send a high volume of surveys and want predictable pricing without per-response metering, it's a sensible choice.
The trade-off is that unlimited shallow answers are still shallow. A thousand "Instagram" responses don't tell you more than ten do. It also has no permanent free tier, just a 14-day trial. See the Grapevine alternative page for the side-by-side.
BetterFeedback, the one that asks "why?"
Full disclosure: this is the app I build. So here's the honest version, including the downside.
BetterFeedback is an AI post-purchase survey for Shopify. The difference is the follow-up. When a customer answers "Instagram," the AI asks the next question automatically, the way a real interviewer would: "an ad or a creator?" then "what convinced you?" So "Instagram" becomes "a before/after reel from a creator I follow, and your site reviews sealed it." That's not a data point, it's a decision you can spend money against.
It has a free tier, paid plans from $23 per month, and you can build a survey by describing your goal in plain English instead of writing every question by hand.
The honest downside: it's the newest option here, so it has the fewest reviews. If social proof and a long track record are what you weight most, Zigpoll has the edge today. If understanding the reason behind each purchase is what you're after, the follow-up is something static forms structurally can't do.
Side-by-side comparison
| Zigpoll | Fairing | Grapevine | BetterFeedback | |
|---|---|---|---|---|
| Question format | Static multiple-choice | Static multiple-choice | Static multiple-choice | AI conversation |
| Follow-up questions | No | No | No | Yes, built-in |
| What you learn | The channel | Channel + revenue match | The channel, at volume | The reason behind it |
| Pricing | Free tier, low monthly | $49 to $199/mo | $25/mo flat, no free tier | Free tier, from $23/mo |
| Best for | The proven, cheap default | Bigger brands with a team | High-volume sending | Knowing why customers buy |
Why the follow-up is the thing that actually matters
Here's the pattern underneath this whole category. A static survey asks "How did you hear about us?", the customer taps "Instagram," and the survey ends. But "Instagram" could mean a paid ad, an organic reel, a paid creator, or a friend's story. Those are four different budget decisions bundled into one bucket.
The channel answer looks like data, which is exactly what makes it dangerous: it stops you from asking the real question. We wrote about this in depth in why "Instagram" is a useless attribution answer. The short version: you can only spend money against reasons, and the reason lives in the follow-up.
How to choose
- Want the safe, established, inexpensive default? Zigpoll.
- Bigger brand that needs revenue-matching and has a team? Fairing.
- High volume, want one flat price? Grapevine.
- Care most about why customers bought, not just which channel? BetterFeedback, which has a free tier and a clickable demo you can try without installing.
There's no single best app, only the best one for what you're optimizing for. If you're a Shopify merchant running paid acquisition and you keep hitting the wall of "Instagram, now what?", that's the gap the AI follow-up was built to close.
FAQ
What's the best post-purchase survey app for Shopify? It depends on what you need. Zigpoll is the most established and affordable for simple multiple-choice surveys. Fairing is best for larger brands that need deep revenue attribution. Grapevine is good for high-volume sending at a flat price. BetterFeedback is best if you want to understand why customers bought, because its AI asks follow-up questions instead of stopping at the channel.
What's the best Zigpoll alternative? If you like Zigpoll's simplicity but want more depth, BetterFeedback asks AI follow-up questions so "Instagram" becomes the specific post and the reason it convinced the customer. If you need enterprise-grade revenue matching, Fairing is the more comparable alternative.
Which post-purchase survey app is cheapest? Most have a free tier or low entry price. Zigpoll and BetterFeedback both have free tiers. Grapevine is a flat $25 per month with no free tier. Fairing is the most premium at roughly $49 to $199 per month.
Do I still need a survey if I have GA4 and the Shopify analytics? Yes, they answer different questions. Analytics tools track what visitors clicked. A post-purchase survey captures what customers say convinced them, which is declared intent you can't get from pixels, especially since iOS privacy changes made click-based attribution less reliable.
