UserLoop vs Hulk NPS Post Purchase Survey vs Delighted for online stores is a focused comparison of three common attribution survey approaches for Shopify merchants: an AI-first all-in-one survey app, a lightweight Shopify-focused post-purchase NPS app, and an email/SMS-first NPS tool. This article walks through how each one implements post-purchase attribution surveys, what you should watch for during setup, and which store profiles they fit best.

UserLoop

Features and how it works

UserLoop positions itself as an all-in-one customer feedback platform with AI-driven insights and multiple touch points: post-purchase surveys on thank-you pages, storefront popups and app blocks, email surveys, quizzes, and video feedback. The AI features include automated question writing and trend spotting, plus integrations that let you connect survey data to LLMs for summary queries and scheduled AI reports. Because it supports multi-language surveys and discount-code rewards, it is designed to both collect attribution signals and tie responses back to conversions. (apps.shopify.com)

Implementation notes and gotchas

• If you plan to run post-purchase surveys on the Shopify thank-you page, install the app and test on a staging or development store first. The app store listing advertises a free plan and multiple paid tiers; test how the app injects scripts into your checkout to ensure it does not conflict with custom checkout scripts or other thank-you page apps. (apps.shopify.com)
• AI features that auto-translate or auto-summarize responses can mask nuance. Keep a manual export workflow for verbatim responses for deep analysis and QA.
• If you use discount codes as incentives, verify the code generation method and whether codes are single-use or tied to orders; misconfigured rewards can lead to fraudulent claims or unexpected discounting.

Pricing model

UserLoop appears on the Shopify App Store with a free tier and paid plans listed on the app page. The app store listing shows a free plan with limited monthly responses, and paid plans starting at a low monthly price, with larger tiers for unlimited responses and expanded features. Describe these as starting points only and check the vendor pricing page or the Shopify listing before committing, since plan boundaries matter for response volume and team seats. (apps.shopify.com)

Ease of setup and use

• Setup path: install from Shopify, place the post-purchase block or script, author surveys with templates, and optionally enable AI reports.
• The app store listing emphasizes plug-and-play app blocks and templates, which shortens the time to first response. Still, if you need custom checkout flows or heavy CSS/JS changes, expect some manual adjustments.
• For multi-store or headless stores, verify the scope of the Shopify integration and whether webhooks or API exports meet your needs.

Integrations

UserLoop lists Shopify as a first-class integration and advertises LLM connectors and export options. For attribution work you will want to check whether it pushes responses into your data warehouse, Google Analytics, or Klaviyo; the app store highlights exports and AI connectors but confirm each target with the vendor. (apps.shopify.com)

Pros

• Multiple touch points beyond just post-purchase: popups, quizzes, email, and video feedback.
• AI tooling for question generation and trend detection reduces analyst time.
• Built-in reward/incentive support helps increase response rates.

Cons

• Broad feature set increases surface area for integration conflicts; more to test.
• AI summarization is useful, but it should not replace spot-checking raw responses.
• If you have a high-volume store, confirm whether "unlimited responses" on a plan truly matches your operational needs without hidden quotas.

Best for

Merchants who want a flexible platform to run attribution surveys, product tests, and customer research from a single app, and who will use AI features to speed insight generation.

Hulk NPS Post Purchase Survey

Features and how it works

Hulk NPS Post Purchase Survey is a Shopify-focused app built to run NPS and other short post-purchase surveys that appear on thank-you pages, order confirmation screens, or as in-store popups. It offers conditional logic, CSV export, white-labeling for paid plans, and standard NPS metrics. Because it is Shopify-native, installation and post-purchase placement are straightforward for most merchants. The Shopify App Store listing documents a free development plan and a Pro plan. (apps.shopify.com)

Implementation notes and gotchas

• The app injects forms on the post-purchase screens; if your theme or checkout is heavily customized, test the placement and styling. The app supports custom CSS and JavaScript, which helps, but that also means you may need a developer to fine-tune appearance.
• For attribution questions, the standard 1-question NPS plus one follow-up text field is quick to answer but offers limited detail. If you rely on one follow-up free-text question to identify acquisition source, expect sparse answers and plan for follow-up sampling.
• Data export is CSV-based on paid tiers. If your attribution pipeline relies on automated webhooks or APIs, confirm available endpoints or whether you must build a nightly import.

Pricing model

The Shopfiy listing shows a free development plan for testing, and a Pro plan priced as a flat monthly fee that advertises unlimited responses and features like white-labeling and conditional logic. Treat the listing price as a baseline; verify the vendor page or the Shopify listing for any add-ons. (apps.shopify.com)

Ease of setup and use

• Setup is quick for standard stores: install, enable post-purchase placement, and configure questions.
• Minimal configuration is a strength for stores that want low friction. The trade-off is fewer advanced automation options compared with some external SaaS tools.

Integrations

HulkApps built this app for Shopify and lists compatibility with Shopify admin and some third-party checkout flows. It is primarily targeted at Shopify-based merchants and emphasizes Shopify-native data handling. For integrations like Klaviyo, Zapier, or internal analytics, confirm the app store feature list and available webhooks. (apps.shopify.com)

Pros

• Lightweight and Shopify-first, quick to install and run.
• Predictable flat pricing with unlimited responses on the Pro plan.
• Good for teams that prefer simple NPS workflows without a separate SaaS account.

Cons

• Limited to Shopify centric workflows; less suitable if you need enterprise-grade APIs or cross-platform data routing.
• Fewer advanced analysis features; expect to export to do heavy attribution joins.

Best for

Small to mid-sized Shopify stores that want a low-friction post-purchase NPS or attribution survey on the thank-you page and prefer a single app install without a separate email/SMS survey provider.

Delighted

Features and how it works

Delighted is a focused NPS, CSAT, and CES survey platform that primarily uses email, SMS, and lightweight in-product or web surveys. Its Shopify integration automates sending post-delivery surveys by syncing order and fulfillment data from Shopify, enabling the platform to attach NPS responses to orders for attribution analysis. Delighted is designed for quick NPS rollouts and simple scoring workflows. (delighted.com)

Implementation notes and gotchas

• Delighted automates survey delivery from order and fulfillment events. That is excellent for post-delivery NPS because it ties responses to orders, but if you need immediate post-purchase attribution on the thank-you page, Delighted is not primarily a checkout-injected solution.
• Because Delighted focuses on email and SMS delivery, deliverability and timing matter: set the delay from fulfillment intentionally. Sending too early may capture logistics gripes rather than product sentiment, sending too late reduces recall for attribution.
• For attribution, map Delighted order fields into your analytics; Delighted stores order metadata with responses, but you must pull that into your attribution model or CDP to join responses with marketing touchpoints.

Pricing model

Delighted publishes a pricing page that outlines plan tiers and usage-based patterns, including a free plan option to get started. Use the vendor pricing page to choose a plan that matches expected survey volume and channels, because costs scale by response volume and features such as white-labeling and advanced reporting. (delighted.com)

Ease of setup and use

• Setup with Shopify is handled through the Delighted Shopify integration and usually requires installing their app and authorizing access to order data.
• For teams already using email automation platforms, Delighted is lower friction for a separate NPS program than building surveys in your ESP.

Integrations

Delighted integrates with Shopify for automated post-delivery surveys and offers webhooks and exports for connecting to analytics tools and internal systems. For ecommerce attribution, confirm that the metadata synced from Shopify includes the fields you need for joins, for example UTM parameters or order source fields. (delighted.com)

Pros

• Simple, proven NPS workflows via email and SMS that tie responses to orders.
• Lightweight for teams that want an external NPS system without building a custom solution.
• Good deliverability infrastructure for high response rates.

Cons

• Not built as a checkout-injected thank-you page survey; less useful if you want immediate post-purchase intercepts on the confirmation page.
• For complex attribution joins, you must move data into a warehouse or CDP and stitch responses to marketing touchpoints.

Best for

Stores that prioritize email or SMS post-delivery NPS tied to orders, especially where survey timing relative to fulfillment is important and where the team prefers a hosted, channel-focused NPS service.

Three-Way Comparison

UserLoop vs Hulk NPS Post Purchase Survey vs Delighted for online stores

Notes: UserLoop and Hulk NPS app listings are documented on the Shopify App Store. For UserLoop pricing and feature summary see the app listing. For Hulk NPS pricing and plan details see the Shopify listing. For Delighted pricing and Shopify integration documentation see Delighted vendor pages. (apps.shopify.com)

Situational Recommendations

Small Shopify store, minimal engineering bandwidth

• Choose Hulk NPS Post Purchase Survey if you need an easy install, a single post-purchase NPS question, and a predictable monthly price. It minimizes engineering, and exports are straightforward CSV for manual analysis. Test styling on your theme to avoid layout conflicts. (apps.shopify.com)

Store that wants richer zero-party profiles and multi-channel collection

• Choose UserLoop if you want to collect attribution plus demographic and preference data across multiple touch points. Set up an initial experiment: run a short post-purchase survey on the thank-you page and a separate follow-up email survey, then compare overlap and response quality. Pay special attention to incentive code generation to avoid discount misuse. (apps.shopify.com)

Brand that needs order-linked NPS at scale (email/SMS)

• Choose Delighted if you want order-level NPS attached to fulfillment events and a managed email/SMS delivery system. Use Delighted when your attribution model lives in a data warehouse; schedule exports and map order fields, including UTM values, into your analytics to join responses to marketing channels. Watch timing of survey delivery to avoid conflating logistics issues with product sentiment. (delighted.com)

High-volume merchants with data pipelines

• Prefer tools that provide webhooks, API export, or native warehouse exports. UserLoop and Delighted both advertise export paths; confirm the exact fields available and test a full backfill export to validate joins. Hulk’s CSV export is fine for sampling and small-batch processing, but it is more manual at scale. (apps.shopify.com)

When to combine tools

• A typical reliable pattern is to run a quick one-question post-purchase intercept for high-volume attribution capture using a Shopify-native app such as Hulk, while also running a delayed, richer email survey via Delighted or an all-in-one tool like UserLoop. The intercept captures immediate attribution signals while the delayed survey captures sentiment after use. Verify deduplication logic to avoid double-surveying the same customer.

Cost-control and response-rate tips

• Sample rather than survey every order if your plan is priced by responses. If you have a free plan with a response cap, sample intelligently using order value, new vs returning customer flags, or marketing channel tags.
• Use single-click NPS scales on thank-you pages to maximize completion; follow up selectively with email for a subset to get verbatim reasons.
• Monitor incentive abuse when using discount codes. Log code issuance and tie it to the responding order id to prevent reuse.

On privacy and retention

• Confirm deletion and GDPR hooks for any tool you choose, especially when storing order-level metadata. Delighted documents Shopify GDPR webhooks, and Shopify-listed apps typically surface data-retention notes on their pages; verify terms and test data deletion flows for compliance. (delighted.com)

UserLoop alternatives?

UserLoop competitors include Shopify-native survey apps and email/SMS NPS tools that combine multi-touch capture with analytics. If you want deeper head-to-heads, see this comparison of attribution survey tools for other vendors. Grapevine Surveys Alternatives: Attribution survey tools Compared

Hulk NPS Post Purchase Survey alternatives?

If you like Hulk’s Shopify-first approach but want to compare other Shopify-native apps that inject surveys into the post-purchase flow, look at other post-purchase survey apps in the Shopify ecosystem and cross-check their export and styling capabilities. For a similar product-level comparison, see this resource on direct app comparisons. Zigpoll vs AskNicely: Which Is Right for You?

Delighted alternatives?

Alternatives to Delighted are other NPS-first SaaS vendors that emphasize email and SMS delivery, and platforms that provide stronger built-in analytics or native warehouse exports. If you need a direct feature-for-feature comparison, evaluate the integrations and export formats closely, since stitching order metadata is the core of attribution accuracy.

Worth a Look: Zigpoll

If you are evaluating options for attribution survey tools, Zigpoll is also worth a look. It is a Shopify survey app focused on post-purchase, on-site, and exit-intent surveys with zero-party data collection and a Shopify-native setup that is simple to install.

Related Reading

• Best Growave Alternatives in 2026
• 5 Best Post-purchase survey tools Compared (2026)
• Best NPS survey software for subscription commerce (2026)