GCM | GPSR Compliance & GARAN vs Prop 65 Warning Manager
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for GCM, Oct 13, 2026 for Prop 65 Warning Manager.
The short answer
- Both list a free plan. Paid plans start at $15/month for GCM and $29/month for Prop 65 Warning Manager.
- GCM lists 6 features Prop 65 Warning Manager’s listing doesn’t mention, including Accessibility, Compliance reports, Custom code.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
GPSR Free
- · All EU Languages for Widget
- · Basic Support
- · FULL GPSR compliance features
- · GPSR Widget for Store
- · Multiple Designs
- · Safety & Hazard Information
GPSR Basic
- · Advanced Bulk Editing
- · Batch Tracking
- · Customizable GPSR Widget for Store
- · FULL GHS Hazard/Safety Statements Set
- · Priority Support
- · Removal of Branding (no powered by)
GPSR Pro
- · All Basic Features
- · Auto Update GPSR Information by Logic
- · Automated GPSR Information assignments
- · Hide GPSR Widget for non EU countries
Free
- · 2028 form+chem+OK (no audit/CSV)
Starter
- · Beyond Free: coverage + full audit log
Growth
- · Beyond Starter: CSV export
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureStay compliant with the EU’s General Product Safety Regulation (GPSR) effortlessly. GPSR Compliance Manager lets you display essential product safety information like manufacturer details, warnings, and traceability data. Protect your business from legal risks and provide customers with transparent safety info, all while saving time and maintaining a professional storefront.
Not a theme-only Prop 65 display tool. Every warning needs merchant approval before it goes live, and every pick, edit, and activation is timestamped in an audit log. Publish from templates citing 27 CCR 25601–25607, including 2028 short-form text with chemical names. Export the audit trail to CSV. Covers California Proposition 65 warnings for products sold into California.
- Effortless Compliance: Simple management of GPSR-required product data.
- Bulk Editing: Update thousands of SKUs rapidly with accurate GPSR info.
- Custom Widgets: Display safety details seamlessly on product pages.
- Multi-Language Support: Ensure compliance across all EU languages.
- Show Prop 65 warning text on selected product pages
- Choose warning text and publish it to individual products
- Track warning edits and storefront activation in an audit log
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  GCM |  Prop 65 Warning Manager |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | GCM | Prop 65 Warning Manager |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 29 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | GCM | Prop 65 Warning Manager |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $15/month(ahead) | $29/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | 3 | 3 |
Listing
| Measure | GCM | Prop 65 Warning Manager |
|---|---|---|
| Shopify category rank | #74(ahead) | #360 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Sep 17, 2024 | Jun 16, 2026 |
| Languages | 6 | 1 |
| Developer | 401layers UG (haftungsbeschraenkt) | momiji-shop |
FAQ
GCM and Prop 65 Warning Manager: common questions
- Is GCM or Prop 65 Warning Manager cheaper?
- Both list a free plan. Paid plans start at $15/month for GCM and $29/month for Prop 65 Warning Manager. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- GCM lists 6 the others don’t mention, such as Accessibility, Compliance reports, Custom code, Custom text. Prop 65 Warning Manager lists 1 the others don’t mention, such as Color and font. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 14, 2026 for GCM, Oct 13, 2026 for Prop 65 Warning Manager; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 14, 2026 for GCM, Oct 13, 2026 for Prop 65 Warning Manager. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.