Key takeaways
- Judge.me is the most popular free Shopify review app — it has a generous free plan and strong integration with Shopify themes.
- Enable the review widget via Theme Editor → App Embeds after installing your chosen app.
- Reviews can be placed on product pages, collection pages (star ratings under product cards), homepage, and dedicated review pages.
- Review schema is generated automatically by most review apps, enabling Google star ratings in search results.
Social proof is one of the most well-documented conversion factors in e-commerce. Shoppers who read reviews convert at higher rates and return less often. Getting a review widget onto your Shopify product pages is one of the highest-ROI changes you can make.
How do I add a review widget in Shopify?
The general process is the same regardless of which review app you choose:
- Install the app from the Shopify App Store
- Enable the widget via App Embeds in the Theme Editor
- Configure where reviews appear (product pages, homepage, etc.)
- Set up review request emails to start collecting reviews
The specifics differ by app.
Which review app to use
Judge.me (recommended for most stores)
Judge.me has the most generous free plan in the review app market. The free tier includes:
- Unlimited review requests
- Review widgets on product pages
- Star rating badges on collection pages
- Review import from other platforms
Installation:
- Install Judge.me from the Shopify App Store
- Follow the setup wizard — it walks through connecting your store and configuring review request emails
- Go to Theme Editor → App Embeds → toggle on Judge.me
- Reviews appear on product pages automatically
The paid plan ($15/month) adds photo and video reviews, question and answer features, and custom widget design.
Stamped.io
Stamped is well-regarded for stores that need Net Promoter Score (NPS) collection alongside product reviews. It’s more feature-rich on the free tier than some alternatives, and integrates well with Klaviyo for email flows.
Pricing starts at $19/month for the essentials tier.
Yotpo
Yotpo is the enterprise-grade option — more powerful, significantly more expensive. It includes loyalty programs, visual UGC, and advanced analytics. For most Shopify stores, it’s more than needed. Worth considering when you’re doing over $2M in annual revenue.
How to enable a review widget in the Theme Editor
After installing your review app:
Step 1 - Open the Theme Editor: Online Store → Themes → Customize
Step 2 - Click the puzzle piece icon in the left sidebar (App Embeds)
Step 3 - Find your review app in the list and toggle it on
Step 4 - The app widget is now active on your product pages
For more specific placement control:
Step 5 - Navigate to a product page in the Theme Editor
Step 6 - In the left sidebar, look for an app block for your review app — you can often drag it to a specific position relative to other product page elements
Where to place review widgets
Product pages (essential): Star rating near the product title, full reviews section below product description. This is the minimum placement for any store.
Collection pages: Star rating badges under each product card. Shows social proof without shoppers having to click into product pages. Judge.me calls this “Star Rating” and enables it via the App Embeds section.
Homepage: A “Featured Reviews” or “What customers say” section. Most review apps include a widget you can embed via a section in the Theme Editor. Alternatively, Fudge can build a custom reviews section that pulls from your review app.
Dedicated testimonials page: A page at /pages/reviews showing your best reviews. Useful for high-consideration purchases where shoppers want to read extensively.
How to create a review widget for a specific product or collection
Most review apps display reviews for the current product automatically — you don’t need to configure which product’s reviews appear on which page.
For a custom-curated review section (e.g., a section on your homepage featuring reviews for a specific product):
- Use your review app’s “Featured Reviews” widget (most apps have this)
- Or describe it to Fudge: “Build a homepage section that shows 3 hand-picked reviews for our best-selling product, with reviewer name, rating, and review text in a clean grid.”
Review schema and Google star ratings
Most review apps automatically add Product Review schema (structured data) to your product pages. This is what enables the yellow star ratings in Google search results.
To verify it’s working: paste a product URL into Google’s Rich Results Test. Look for a valid “Product” result with “review” data. If stars appear, the schema is working correctly.
It can take several weeks after setting up reviews before Google starts showing star ratings in search results — it needs to recrawl your product pages and process the new schema.
