Omnisend vs Mailchimp, answered plainly: if you run a Shopify DTC store and your priority is running post-purchase surveys that feed email and SMS flows to lift repeat purchase rate, Omnisend gives you faster ecommerce hooks and unified email+SMS automation; Mailchimp gives easier survey hosting and a broader suite of non-ecommerce tools, but you will spend time wiring Shopify signals into the flows you need. Which one you pick depends on whether you want Shopify-first automation and native on-site capture, or a familiar survey + audience tool you can plug into other channels.

Direct comparison for a Shopify merchant focused on post-purchase surveys and repeat purchase rate

Do you want to capture feedback on the thank-you page, tag customers, and fire a follow-up sequence that nudges a second order? Omnisend connects Shopify events, in-site forms, and SMS into the same automation builder, so a checkout opt-in or thank-you page embed can immediately create segments and fire post-purchase emails and texts. Mailchimp supports hosted surveys and in-email survey blocks that add tags to contacts, but survey responses often sit as an audience attribute that you then must route into downstream flows. Use Omnisend if you want one place to capture, segment, and message; use Mailchimp if you already rely on its survey UX and prefer hosting feedback in a general-purpose marketing audience. (omnisend.com)

Feature checklist that actually matters for moving repeat purchase rate on Shopify

What would you test this week to move repeat purchases? Capture a post-purchase satisfaction score, branch to a replenishment offer or product education sequence, and measure second-order conversions within 30 to 90 days. From that perspective, compare these practical points:

• Shopify event and product sync: Omnisend keeps order, product and customer activity tightly in the automation builder so you can trigger flows off order value, SKU purchased, or fulfillment status. Mailchimp syncs Shopify data too, but historically merchants have seen more friction wiring behavior into complex lifecycle flows. (support.omnisend.com)
• In-site capture on the thank-you page: Omnisend has popups, embedded forms and landing pages you can target to the thank-you page and feed directly into automations. Mailchimp can host surveys and you can link to them; pre-filling and inline thank-you page embeds require extra steps or third-party forms. (omnisend.com)
• Email plus SMS in one workflow: Omnisend lets you send email and SMS within the same flow so a low post-purchase CSAT can trigger an SMS check-in automatically. Mailchimp supports SMS as well, but multichannel orchestration is more fragmented between tiers and connectors. (aftership.com)
• Survey UX and tagging: Mailchimp provides a hosted survey builder and a survey content block that auto-tags respondents in the audience, which is handy if you want a prettier, stand-alone feedback form and a simple tag-based segment. Omnisend collects arbitrary form fields and can tag and route them too, but its survey features are implemented through forms rather than a separate survey product. (mailchimp.com)
• Reporting and attribution: If you care about revenue per recipient and second-order conversions, test end-to-end attribution. Email industry benchmarks show substantial upside from good automation, and merchants often treat email as one of the highest ROI channels; design your experiment to attribute repeat revenue directly from the flows you build. (emailtooltester.com)

Comparison table at-a-glance

• Omnisend: Shopify-first automation, native web forms/popups, combined email+SMS flows, faster to ship ecommerce lifecycle sequences. (omnisend.com)
• Mailchimp: Hosted survey builder, familiar campaign and template tools, broader non-ecommerce features, may need extra wiring for complex Shopify event logic. (mailchimp.com)

Which is better for Shopify stores, Omnisend or Mailchimp?

Omnisend is better when you want Shopify events, on-site capture, and email plus SMS orchestrated inside one visual flow; Mailchimp is better when you want built-in hosted surveys and campaign templates that are not focused only on ecommerce. Use whichever gets your post-purchase survey live, tagged, and flowing into targeted second-order offers fastest.

Can I run a post-purchase survey on the Shopify thank-you page with Omnisend or Mailchimp?

Yes, you can run a post-purchase survey from both: Omnisend uses embedded forms or popups targeted to the thank-you or order status page to capture answers and trigger automations, while Mailchimp can host a survey and you can link or embed that survey, with auto-tagging for respondents in the Mailchimp audience. Omnisend tends to require fewer third-party pieces for a thank-you page flow. (omnisend.com)

Will survey responses automatically update customer data and trigger personalized flows?

They can, but how depends on the platform: Mailchimp’s hosted surveys can auto-tag respondents and add them to an audience where automations pick up those tags; Omnisend adds collected form fields and tags directly into segments and automation entry criteria. For a Shopify merchant trying to push repeat purchase rate, Omnisend’s direct event-to-flow path often reduces implementation time. (mailchimp.com)

Does Omnisend or Mailchimp drive more revenue per dollar spent on email and SMS?

The email channel broadly returns more than most paid channels when executed well; industry benchmarks repeatedly show high per-dollar returns for effective email programs. Your result will depend on how targeted your post-purchase survey is and whether responses are used to feed segmented reorder or replenishment journeys that prompt a second purchase. Design the measurement first, then pick the tool that minimizes friction in that measurement loop. (emailtooltester.com)

Practical implementation scenarios and trade-offs

Why does this matter for a DTC Shopify operator? Imagine a skincare brand selling consumables with a 30-day repurchase window. You want to know whether non-reorders fail to repurchase because they ran out, had a fit problem, or forgot the product. A short post-purchase survey on the thank-you page that asks “When will you need more? 2 weeks, 4 weeks, 8 weeks, not sure” can drive three actions: enroll “2 weeks” people into an early replenishment reminder, tag “fit problem” responders into a returns/education flow, and put “not sure” shoppers into a two-email educational sequence that builds product usage confidence.

• If you run this in Omnisend you can: embed the survey on the thank-you page, auto-tag, and immediately branch to email plus SMS based on answers. Minimal glue. (omnisend.com)
• If you run this in Mailchimp you can: host the survey, use the survey content block or a link in a post-purchase email, then rely on Mailchimp tags and an automation to move people into the correct flow. Expect more manual mapping if you also manage SMS and Shopify events elsewhere. (mailchimp.com)

Anecdote with numbers to orient you: one storefront tested a short post-purchase check-in and a replenishment offer and saw the repeat purchase rate move from mid-teens into the mid-twenties, generating an incremental revenue stream that covered the cost of the offers and raised lifetime value. Use that kind of split test to decide whether to subsidize the second order with a small discount or with value-add content and timing alone. (marketspark.live)

Caveats and limits

Will either platform magically fix a leaky product or poor customer fit? No. Surveys only help when the answers map to an action you can take and measure. If your SKU assortment has a structural return problem, or your logistics delay shipments beyond the period customers expect, surveys will diagnose but not solve those upstream issues. Also, if your measurement horizon for repeat purchases is long for your category, short A/B tests may understate the effect size.

Recommendations you can ship this week

• If you already run SMS on the same bill as email and want to reduce engineering work, start with Omnisend and build an embedded thank-you form that tags answers and triggers replenishment flows. (omnisend.com)
• If you want a polished hosted survey with survey-specific reporting and you do not need tightly coupled SMS flows, start in Mailchimp, use the survey content block, then export or auto-tag respondents into segments for follow-up automation. (mailchimp.com)
• In either case, run a 50/50 experiment that measures second-order conversion within the meaningful repurchase window for your SKU category, reporting revenue per recipient and incremental LTV.

How Zigpoll handles this for Shopify merchants

1. Trigger: use a post-purchase / thank-you page Zigpoll trigger that fires immediately after checkout completion for first-time buyers, and an alternative trigger that fires as an on-site widget on the order status page for all orders. This ensures you capture intent while the transaction is fresh and you can ask timing and satisfaction questions before the product arrives.
2. Question types and wording: start with a short branching sequence: (a) CSAT star rating: "How satisfied are you with your purchase experience today?" (1 to 5 stars). (b) Multiple choice branching: "When will you need more of this product?" Options: "Within 2 weeks", "2 to 6 weeks", "More than 6 weeks", "I don't plan to reorder." (c) Free text follow-up when satisfaction is 1 or 2: "What went wrong? Please tell us in a sentence." Use branching so low scores surface immediate remediation paths.
3. Where the data flows: wire Zigpoll responses into Klaviyo segments and flows to trigger replenishment or remediation sequences, write simple Shopify customer tags or metafields (e.g., next_purchase_timing:2w) for order-level logic, and push alerts to a dedicated Slack channel for high-priority negative feedback so customer success can act fast. Also keep responses in the Zigpoll dashboard segmented by SKU and acquisition source so you can compare cohorts across paid channels.