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GS1 Assistant (UPC EAN GTIN) vs Judge.me Product Reviews App
Side-by-side comparison
GS1 Assistant (UPC EAN GTIN)
Assign GS1 barcodes to every variant, and find missing or duplicate UPC codes and EAN codes.
Built for ShopifyshopifyFree to install
Judge.me Product Reviews App
Sell more with unlimited product reviews, UGC, star ratings, Google reviews and testimonials
Built for ShopifyshopifyFree plan available
At a glance
| Metric | GS1 Assistant (UPC EAN GTIN) | Judge.me Product Reviews App |
|---|---|---|
| Rating | 4.0 ★ | ★ 5.0 ★ |
| Total reviews | 12 | ★ 50k |
| Free plan | Yes | Yes |
| Pricing | Free to install | Free plan available |
| Built for Shopify | Yes | Yes |
| Pricing tiers | ★ 3 tiers | 2 tiers |
| Listed features | 5 | 5 |
| Featured placements | — | 8 |
| Languages | 5 supported | 15 supported |
| Listed since | May 2024 | Jun 2015 |
AppRanks verdict
Generated from live data on this pageThe call
On the measured data here, Judge.me Product Reviews App leads on more dimensions (4 vs 1). Pick GS1 Assistant (UPC EAN GTIN) if one of the points where it leads is what you need.
Where GS1 Assistant (UPC EAN GTIN) leads
- Lists Auto-generation, Barcode integration and Bulk generation (+4 more) in its marketplace category features; Judge.me Product Reviews App doesn't.
Where Judge.me Product Reviews App leads
- Higher average rating: 5.0★ vs 4.0★.
- More published reviews: 49,783 vs 12.
- Available in more languages: 15 vs 5.
- Lists A/B testing, All reviews page and Analytics (+36 more) in its marketplace category features; GS1 Assistant (UPC EAN GTIN) doesn't.
How this is generated
Built only from the Shopify App Store listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: GS1 Assistant (UPC EAN GTIN) audit • Judge.me Product Reviews App audit
1. Listing metadata
Field-level data| Field | GS1 Assistant (UPC EAN GTIN) | Judge.me Product Reviews App |
|---|---|---|
| Tagline | ||
| Listing audit | 91/100 listing audit | 95/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
2. Pricing & plans
Marketplace-listed plans · paid plans cheapest first, not matched tier-for-tierTier
GS1 Assistant (UPC EAN GTIN)
Judge.me Product Reviews App
Free plan
Essential
Free
- Supports prefixes up to 100 GTINs
- Assign GTIN/ UPC/ EAN to your products
- Identify missing and invalid GTINs
- Import files for 10 GS1 organizations
- Email + Zoom setup & onboarding support
Free
Free
- Unlimited product and store reviews
- Unlimited visual reviews (photos/videos)
- Review widget & star rating badge
- Carousels (Video, Cards, Testimonials)
- Google reviews sync & rich snippets
- Trust badge and medals
- Sync with Shop App, Etsy, Amazon
- Reviews importer & AliExpress sync
Paid plans
Growth
- Include Everything From Essential Plan
- Supports prefixes up to 1,000 GTINs
- API Synchronization (where supported)
- Identify missing and invalid GTINs
- Email + Zoom setup & onboarding support
Automation
- Include Everything From Growth Plan
- Supports all GS1 company prefixes
- Auto-assign GTINs to new products
- Auto Sync where your GS1 has an API
- Priority Email + Zoom support
Awesome
- AI (replies, summary, translations)
- 130+ integrations, inc. Klaviyo, Gorgias
- 16 widgets (Snippets, Q&A, Reviews Page)
- Advanced collection (auto-reminder, etc)
- Coupons & Referrals
- Google Shopping
- Meta & TikTokShop sync, SocialMedia push
- Customize widgets and email design, CSS
3. Features
As listed by each developerGS1 Assistant (UPC EAN GTIN)
- Assign GTINs from your own GS1 prefix to one variant or your whole catalog.
- Flags missing, invalid and duplicate GTIN barcodes. Download as SVG or PNG.
- Import files for GS1 UK, US, Canada, France, Norway and Romania.
- Auto Sync to GS1 Germany, Netherlands, Sweden and Brazil.
- US brands can license an official GS1 company prefix inside the app.
Judge.me Product Reviews App
- Collect and manage unlimited reviews, photos, videos, testimonials, ratings
- Display eye-catching review widgets, testimonial sliders and product ratings
- Send coupons and referrals to drive more reviews and repeat sales
- Syndicate reviews to Google, Meta & Shop App. Share on Facebook/Instagram/X
- Import reviews from Yotpo, Loox, Amazon, Etsy & other platforms
4. Categories & rankings
Shared categories on the same row · in-category position inlineGS1 Assistant (UPC EAN GTIN)
Judge.me Product Reviews App
—
SEO#1 of 1.3k
5. Category features
Marketplace-curated features per categorySKU and barcodes0 shared · 7 total
Only in GS1 Assistant (UPC EAN GTIN)
- Auto-generation
- Bulk generation
- GTIN
- UPC
- Barcode integration
- Duplicate check
- Variants
Only in Judge.me Product Reviews App
None
Product reviews0 shared · 30 total
Only in GS1 Assistant (UPC EAN GTIN)
None
Only in Judge.me Product Reviews App
- All reviews page
- Badges
- Carousels
- Filtering
- Grid layout
- Media galleries
- Photo reviews
- Product grouping
- Q&A
- Review summaries
- Rich snippets
- Star ratings
- Tabs or sidebars
- Testimonials
- Top reviews
- Video reviews
- Automations
- Custom requests
- Email requests
- Forms
- Import and export
- Promotions
- Push notifications
- QR codes
- Referrals
- Review migration
- Review syndication
- SMS requests
- Social media UGC
- Surveys
SEO0 shared · 10 total
Only in GS1 Assistant (UPC EAN GTIN)
None
Only in Judge.me Product Reviews App
- Backlinks
- JSON-LD
- Meta tags
- Metadata optimization
- Rich snippets
- A/B testing
- Analytics
- Reporting
- Testing
- Tracking
6. Search rankings
Top 5 keywords · shared rankings prioritized| Keyword | GS1 Assistant (UPC EAN GTIN) | Judge.me Product Reviews App |
|---|---|---|
| products | Not ranked | #1 |
| star ratings and | Not ranked | #1 |
| judge me | Not ranked | #1 |
| ebay etsy | #10 | Not ranked |
| product data | #17 | Not ranked |
7. Featured placements & badges
Editorial visibilityGS1 Assistant (UPC EAN GTIN)0 all-time · 0 recent
Not featured in any section recently.
Judge.me Product Reviews App8 all-time · 5 recent
- home · Get the best apps for your business with Built for ShopifyNovember 6, 2026
- category · Recommended store design appsNovember 6, 2026
- category · Recommended site optimization appsNovember 6, 2026
- category · SEONovember 6, 2026
- category · Product reviewsNovember 6, 2026
8. Activity in the last 90 days
Tracked changes · pricing, features, copy, screenshotsGS1 Assistant (UPC EAN GTIN) · 8 changes
- Oct 29descriptionListing copy updated
- Oct 29descriptionListing copy updated
- Oct 29descriptionListing copy updated
- Oct 29descriptionListing copy updated
- Oct 29featuresFeatures list updated
- Oct 29descriptionListing copy updated
- Oct 29descriptionListing copy updated
- Oct 26descriptionListing copy updated
Judge.me Product Reviews App · 8 changes
- Nov 5descriptionListing copy updated
- Nov 5descriptionListing copy updated
- Nov 3descriptionListing copy updated
- Nov 3descriptionListing copy updated
- Nov 2descriptionListing copy updated
- Nov 2descriptionListing copy updated
- Oct 21descriptionListing copy updated
- Oct 10descriptionListing copy updated
9. Quality signals
Reviews · velocity · latest sentiment| Signal | GS1 Assistant (UPC EAN GTIN) | Judge.me Product Reviews App |
|---|---|---|
| Average rating | 4.0 ★ (12) | 5.0 ★ (50k) |
5 latest reviews · each app
GS1 Assistant (UPC EAN GTIN)
Review text isn't collected for this app yet (12 reviews on the marketplace).
Judge.me Product Reviews App
- Nov 1, 2026
good app
- Nov 1, 2026
I had some existing shopify review app issues and changed to Judge.me review app. Was a little confused on how to navigate and delete the existing review apps and blocks on my store. Customer service was great and was able to troubleshoot and clean up my product pages in under a few minutes. Thank you Van for your help
- Nov 1, 2026
- Nov 1, 2026
- Nov 1, 2026
Professional, effcient and helpful customer service team. They respond immediately and was able to solve any problems for you.
10. App details
Long-form descriptionGS1 Assistant (UPC EAN GTIN)
For brands that make their own products and license barcodes from GS1. GS1 Assistant assigns GTINs (UPC barcodes and EAN codes) from your GS1 company prefix to your variants, one at a time or in bulk, and writes each to the barcode field. It shows which products have missing, invalid or duplicate GTINs. Where your GS1 organization has an API, Auto Sync sends your products to GS1. US brands can license a GS1 prefix in the app. Every plan includes email & online setup help.
Judge.me Product Reviews App
Driving traffic is only half the battle – trust is what converts. Judge.me boosts conversion rate with unlimited product reviews, star ratings, and UGC (photo/video). Automate review requests after fulfillment or delivery, launch review widgets and testimonial sliders, boost visibility with Google reviews & SEO page. Share reviews and star ratings on Meta & TikTok, import Etsy & Amazon reviews and drive repeat purchases with coupons & referrals. Fully customizable, 24/7 support.
Frequently asked
Common questions about this comparisonIs GS1 Assistant (UPC EAN GTIN) or Judge.me Product Reviews App cheaper?
Both GS1 Assistant (UPC EAN GTIN) and Judge.me Product Reviews App offer a free plan. GS1 Assistant (UPC EAN GTIN) lists no paid plan with a published price; Judge.me Product Reviews App lists no paid plan with a published price. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
Which has better reviews, GS1 Assistant (UPC EAN GTIN) or Judge.me Product Reviews App?
Judge.me Product Reviews App has the higher average rating (5.0★ from 49,783 reviews) compared to GS1 Assistant (UPC EAN GTIN) (4.0★ from 12 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Should I choose GS1 Assistant (UPC EAN GTIN) or Judge.me Product Reviews App?
Judge.me Product Reviews App holds the higher average rating (5.0★ vs 4.0★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Which is faster to set up, GS1 Assistant (UPC EAN GTIN) or Judge.me Product Reviews App?
Both apps are one-click installs from the Shopify App Store. AppRanks doesn't measure setup time directly; Judge.me Product Reviews App has more published reviews to read for user-reported install experience (49,783 vs 12).
Which works better for small vs large Shopify App Store merchants?
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the Shopify App Store data. What it can show: GS1 Assistant (UPC EAN GTIN) has 12 published reviews; Judge.me Product Reviews App has 49,783 published reviews. Compare plan limits and pricing tiers against your own volume.
Can I migrate data between GS1 Assistant (UPC EAN GTIN) and Judge.me Product Reviews App?
Migration support varies by app and category. GS1 Assistant (UPC EAN GTIN) and Judge.me Product Reviews App both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from GS1 Assistant (UPC EAN GTIN)" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
11. Other comparisons people make
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