
From the conversion glossary
Concepts referenced in this article, defined.

Concepts referenced in this article, defined.
Run rigorous A/B tests and personalize every visit on Shopify or any storefront โ no engineers required.
Judge.me is the best-value product review app for Shopify โ its free plan covers nearly everything most D2C brands need, and its paid plan ($15/month) unlocks a complete feature set that rivals tools costing 3โ5x more. Loox specialises in visual (photo and video) reviews and referrals, making it the stronger choice for brands in categories where UGC imagery drives purchase decisions (beauty, fashion, home decor). Stamped is a broader loyalty and reviews platform that's better suited to brands wanting reviews, loyalty programmes, NPS, and UGC in a single tool. For most D2C brands starting out, Judge.me is the default; for brands where visual social proof is a core acquisition lever, Loox earns its higher price.
Judge.me is a Shopify product reviews app with a generous free tier and a paid plan ($15/month). It supports text reviews, photo reviews, automated review request emails, review widgets, Google Shopping integration (rich snippets), Klaviyo/Mailchimp sync, and Q&A. Judge.me's free plan allows unlimited reviews and unlimited review requests, with only minor limitations (less customisation of email templates, no video reviews on free). It's one of the most popular review apps in the Shopify App Store with over 20,000 five-star reviews.
Loox is a photo and video reviews app for Shopify with a focus on visual UGC and referral programmes. It sends automated post-purchase emails requesting photo or video reviews, displays them in visual carousels and grids, and integrates referral discounts directly into the review flow (customers who leave a photo review receive a discount to share with friends). Pricing starts at $9.99/month for Beginner, $29.99/month for Growth, and $99.99/month for Unlimited โ pricing that scales with order volume.
Stamped (now Stamped.io) is a reviews, UGC, loyalty, and referral platform for ecommerce. Alongside product reviews, it offers a loyalty and rewards programme (points, VIP tiers), a referrals module, an NPS (Net Promoter Score) tool, and shoppable UGC galleries. Stamped positions itself as an all-in-one social proof and retention platform. Pricing for reviews starts at $23/month (Basic), $59/month (Premium), and $149/month (Business). Loyalty features are add-ons or higher-tier plans.
| Feature | Judge.me | Loox | Stamped |
|---|---|---|---|
| Text reviews | Yes | Yes | Yes |
| Photo reviews | Yes (free) | Yes (core feature) | Yes |
| Video reviews | Yes (paid) | Yes (paid plans) | Yes |
| Visual review carousels | Yes | Yes (emphasis) | Yes |
| Automated review request emails | Yes | Yes | Yes |
| Google rich snippets/SEO | Yes | Yes | Yes |
| Referral programme | No | Yes (built-in) | Yes (add-on) |
| Loyalty/rewards | No | No | Yes (add-on) |
| NPS tool | No | No | Yes |
| Q&A on products | Yes | No | Yes |
| Klaviyo integration | Yes | Yes | Yes |
| Free plan | Yes (full-featured) | No | No |
| Starting paid price | $15/month | $9.99/month | $23/month |
| Order volume limits | None | Yes (tiered) | Yes (tiered) |
Judge.me:
For most D2C brands, Judge.me's free plan is sufficient. The $15/month upgrade is one of the most cost-effective upgrades in the Shopify app ecosystem.
Loox:
Loox's pricing scales with order volume. A store doing 500 orders/month hits the Growth cap and may need the Unlimited plan. At that volume (โโน25โ50 lakh/month GMV for a typical D2C brand), โน8,300/month for Loox is a reasonable investment if photo reviews are driving conversions.
Stamped:
Stamped becomes most cost-efficient when you're using multiple modules (reviews + loyalty + NPS). If you only need reviews, Judge.me is almost always cheaper.
Loox's entire product is optimised for visual reviews. Its email template for photo review requests has among the highest response rates in the category because it's simple, mobile-first, and offers a discount incentive. Loox's display widgets โ carousels, grids, popups โ are designed to showcase imagery prominently.
Judge.me handles photo reviews well but has historically been more text-review-focused. Its photo review display widgets have improved significantly but are generally considered less visually optimised than Loox's.
For D2C brands in categories where seeing the product on real people drives purchase decisions โ skincare, haircare, fashion, home furnishings โ Loox's visual-first approach can meaningfully outperform Judge.me in terms of review content quality and its downstream impact on conversion.
Brands like a Mamaearth or Minimalist competitor, where before/after photos and real usage imagery matter to sceptical buyers, may find Loox's emphasis on photo quality worth the higher price.
A review app is only as valuable as its collection rate โ how many of your orders actually result in a review.
Judge.me and Loox both send automated post-purchase email sequences. Loox's emails are optimised for mobile photo uploads and use a one-tap photo attachment flow. Its discount incentive (discount code for leaving a photo review) boosts collection rates.
Stamped also sends automated review requests with customisable timing and templates. Its multi-channel review requests (email + SMS on higher plans) can improve collection rates for mobile-heavy customer bases.
For Indian D2C brands with customers primarily on mobile and WhatsApp, the ease of the photo submission flow matters. Both Loox and Judge.me support mobile-optimised review submission.
Reviews and social proof widgets are one of the highest-impact elements on product pages. But where you place them, how many you show, and which format (star rating summary vs highlighted review excerpts vs photo carousel) you use all affect how much they actually move conversions.
Judge.me, Loox, and Stamped give you the reviews โ but they don't help you test which review placement or format drives the most conversions. Running an A/B test on your product page with the review widget above the fold vs below the fold, or testing a highlighted "top review" excerpt vs a star-rating summary, can reveal 5โ15% conversion differences.
If you're evaluating review apps for your D2C store, you'll also want an A/B testing tool to optimise how that social proof is displayed. CustomFit.ai integrates with Shopify and lets you test review widget placement, format, and prominence on your product pages โ without developer involvement. Start a 14-day free trial and turn your reviews into maximum conversion rate impact.
Can Judge.me import reviews from Amazon or other platforms? Yes. Judge.me supports importing reviews from Amazon, AliExpress, and other sources, as well as from other Shopify review apps.
Does Loox integrate with Klaviyo? Yes. Loox integrates with Klaviyo to send review data (review rating, review content) as properties on Klaviyo customer profiles, enabling review-based email segmentation.
Is Stamped's loyalty programme worth it? Stamped's loyalty module is capable but not best-in-class โ dedicated loyalty tools like Smile.io or LoyaltyLion are generally more feature-rich. Stamped's loyalty is best for brands that want basic loyalty features bundled with their reviews tool.
Can I migrate from one review app to another without losing reviews? Yes. Most review apps (including Judge.me, Loox, and Stamped) support importing reviews from competitors. The migration typically preserves review text, ratings, and reviewer names, but photo/video imports vary.
Which review app has the best SEO impact? All three support Google rich snippets (star ratings in search results) via proper schema markup. Judge.me and Stamped are particularly strong on structured data implementation.