Stamped.io vs Trustmary vs Loox for retail businesses, compared plainly: these three tools all help retailers gather and show customer feedback, but they approach the problem from different angles. Read on for a focused, vendor-by-vendor look at core capabilities, how pricing is structured, what each does poorly, and which retail profile each one fits best.

Stamped.io

Features

Stamped.io markets itself as a combined reviews, loyalty, and lifecycle platform built around e commerce review collection, NPS and surveys, and post-purchase lifecycle programs. The product suite is split into Reviews, Loyalty, and Lifecycle components so a retailer can pick one function or buy multiple. (stamped.io)

Pricing approach

Stamped publishes tiered product pricing on its site and frames plans by product rather than a single monolithic subscription. The vendor lists starting price points and emphasizes product bundles and enterprise options; it also points to self-serve Shopify app plans for smaller merchants. The pricing page is explicit that plans start around several hundred dollars per month for the main product bundles, and that monthly subscriptions are available. Hedge to check the vendor page for current numbers and promotional offers. (stamped.io)

Ease of setup and use

Stamped positions itself as Shopify native, with templated flows and migration tools. For stores already on Shopify, the company claims fast launch times and migration assistance for reviews, so basic setup is generally straightforward for a merchant with a standard theme. More advanced lifecycle automations require some configuration but ship with templates. (stamped.io)

Integrations

Stamped explicitly lists tight Shopify and Shopify Plus integration and calls out common marketing and support partners like Klaviyo and Gorgias as supported connections. That makes it practical for retailers who want review data feeding their email and helpdesk stacks. Check the Stamped integration directory for the full list. (stamped.io)

Customer support and documentation

Stamped offers a help center, import tools, and email/in-app support; the public page notes onboarding support and migration help for larger plans. Expect vendor-led onboarding on mid and enterprise plans and standard documentation for self-serve tiers. (stamped.io)

Pros

• Unified retention product set if you want reviews plus loyalty and lifecycle.
• Native Shopify focus and marketplace presence, which reduces friction for Shopify stores.
• Migration and onboarding paths for brands moving from other review apps. (stamped.io)

Cons

• Pricing is productized and can climb if you add multiple modules; small merchants may find core review-only costs higher than single-purpose apps.
• Deeper lifecycle and loyalty features add complexity; you will need to tune automations to avoid email fatigue.

Best for

Retailers that want an integrated retention stack: brands that care about reviews plus loyalty and post-purchase automation, and that run on Shopify/Shopify Plus.

Trustmary

Features

Trustmary is a feedback and testimonial platform built around NPS and multi-purpose surveys that convert positive feedback into publishable testimonials and widgets. It emphasizes combined measurement, open-text feedback, video testimonials, and the ability to funnel responses into display widgets and external review channels. The vendor frames the product as a combined collection and display tool with configurable widgets and survey logic. (trustmary.com)

Pricing approach

Trustmary describes a flexible, build-your-plan pricing model with an always-available free tier and modular add-ons for display and collection features. The vendor notes the ability to construct plans to match usage and adds that small starting packages are possible; the site invites visitors to calculate pricing or book a demo. If you need precise monthly rates or included widget view limits, consult Trustmary’s pricing calculator or billing page. (trustmary.com)

Ease of setup and use

Trustmary promotes quick setup with ready-made survey templates and easy widget embedding. The help center documents multiple sharing methods and the ability to add surveys to web pages, email, QR codes, and pop-ups. For a retailer wanting NPS, CSAT, or short testimonial flows, setup can be largely self-serve. (help.trustmary.com)

Integrations

Trustmary supports importing and connecting third-party review sources such as Google and Facebook, and it can export or embed reviews across web channels. The platform explicitly documents review connections and import procedures; hourly or daily import cadences differ by plan. Integrations with marketing stacks are possible via widgets and export APIs, but check the integration directory if you need a specific connector. (help.trustmary.com)

Customer support and documentation

Trustmary maintains a detailed help center that explains survey creation, widgets, import processes, and billing. Paid plans get automated import updates and enhanced features; the documentation is tailored to marketers and product teams. Expect reasonable self-service documentation and demo support for tailored plans. (help.trustmary.com)

Pros

• Focused on turning qualitative NPS and open feedback into publishable testimonials and widgets.
• Flexible pricing structure that lets you scale widget views and collection volume.
• Multiple capture methods including email, on-site embed, QR codes, and video collection. (trustmary.com)

Cons

• If primary need is product-level photo reviews for Shopify product pages, Trustmary is less specialized.
• Widget view limits and add-ons mean costs can step up with traffic; review the billing metrics before committing. (help.trustmary.com)

Best for

Retailers prioritizing NPS, testimonial capture, video stories, and broad reputation management across web properties, especially those that value flexible, usage-based pricing.

Loox

Features

Loox is a Shopify-native photo and video review app focused on visual social proof: automated review request emails that incentivize photo submissions, front-end widgets that highlight photo and video reviews, and referral functionality in higher tiers. The product emphasizes visual sorting, AI-assisted replies, and built-in widgets and pages for Shopify stores. (loox.app)

Pricing approach

Loox publishes tiered plans, including a free starter option, a mid-level plan in the mid tens of dollars per month, and higher tiers targeted at larger stores with unlimited requests and priority support. Prices and included order/request limits are shown on Loox’s pricing page; the vendor also notes that billing can occur through the Shopify billing period. For exact figures consult Loox’s pricing page. (loox.app)

Ease of setup and use

Loox is designed as no-code for Shopify themes: install the app, enable widgets, and the core flows work out of the box. The vendor highlights import tools for migrating reviews and a UI meant for fast launch with minimal developer help. That simplicity is a genuine strength for small to mid-size merchants. (loox.app)

Integrations

Loox is built for Shopify and advertises support for Google Shopping and referral program features inside its own product. It also supports importing reviews from other apps via CSV or built-in import tools. For headless or non-Shopify merchants, Loox is less relevant. (loox.app)

Customer support and documentation

Loox publishes a help center, claims round-the-clock support, and outlines Shopify billing and onboarding details on its site. The vendor positions itself as responsive and Shopify-first, with guidance for merchants at every size. (loox.app)

Pros

• Strong emphasis on photo and video reviews, which convert well on product pages and social channels.
• Quick, no-code setup for Shopify merchants and built-in importers.
• Free starter tier lets a store begin collecting visual reviews without immediate spend. (loox.app)

Cons

• Less of a fit if you want enterprise NPS survey pipelines or broad testimonial distribution outside product pages.
• Functionality and integrations are heavily optimized for Shopify; multi-platform brands will need workarounds.

Best for

Small to mid-market Shopify stores that rely on visual social proof and want a low-friction way to collect and showcase photo/video reviews.

Stamped.io alternatives?

Stamped.io direct competitors are apps and platforms that combine reviews with loyalty or lifecycle features. For a head-to-head that includes Trustmary and other players, see the comparison of Fera and Trustmary at this vendor-focused piece on testimonial and review platforms. (See comparative analysis at Fera vs Trustmary vs Birdeye Compared.)

Trustmary alternatives?

If your priority is NPS and testimonial pages rather than product photo reviews, Trustmary sits with several niche providers; for a perspective that includes Trustmary and product review specialists like Loox, consult this Zigpoll comparison Loox vs Okendo vs Trustmary: Which Customer review platform Wins?.

Loox alternatives?

Loox competes with Shopify-first visual review apps and larger customer experience platforms. For comparisons that place Loox against other Shopify review apps and broader stacks, see the Loox versus peers analysis at Fera vs Growave vs Loox: Which Customer review platform Wins?.

Three-Way Comparison

Situational Recommendations

Small Shopify stores seeking visual proof, minimal setup, and low upfront spend should favour Loox. Its free starter tier and no-code widget setup get photo reviews on product pages quickly, which is the highest ROI move for product-led conversion lifts. (loox.app)

Brands that want reviews plus a single vendor for loyalty and post-purchase flows should consider Stamped.io. The ability to buy Reviews, Loyalty, and Lifecycle from one vendor reduces integration overhead, and the Shopify-first posture means faster implementation if you run on Shopify. Expect higher base costs as you add modules, but gain unified reporting and support. (stamped.io)

Retailers focused on measuring customer experience, gathering NPS and verbatim feedback, and turning positive responses into site testimonials should evaluate Trustmary. Its survey logic, video testimonial capture, and widget toolkit make it stronger for reputation and testimonial programs than for product-level photo review mechanics. Review widget view limits and add-ons to model likely costs for high-traffic sites. (trustmary.com)

Omnichannel mid-market retailers with in-house dev resources who want a full CX stack may mix tools: use Loox for product-page visual proof, Trustmary for NPS and testimonial pages, and Stamped for loyalty and lifecycle. That combination splits responsibilities clearly, but increases integration work and vendor management.

If your KPI is immediate lift in product conversion from social proof, prioritize image and video reviews over NPS widgets. If your KPI is improving retention and repeat purchase, a combined Reviews plus Loyalty/Lifecycle approach has more leverage for CLTV. If reputation and enterprise lead-gen are the goal, pick the vendor that emphasizes testimonials and multi-channel syndication.

Final notes on verification and next steps

All pricing and integration claims above are drawn from each vendor’s public pages; verify your specific needs against the vendor pricing calculators and integration directories before committing. Stamped’s pricing and product pages list productized plans and bundles. (stamped.io) Trustmary describes a flexible plan and widget-based usage model on its site. (dev.trustmary.com) Loox publishes clear tiered plans including a free starter tier on its pricing page. (loox.app)

Worth a Look: Zigpoll

If you are evaluating options for customer review platforms, Zigpoll is also worth a look. It is a Shopify-native survey app offering post-purchase, on-site, and exit-intent surveys with zero-party data collection and a lightweight Shopify setup, suitable for merchants who want to synthesize survey data and onsite social proof without heavy engineering.

Related Reading

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