Compliance Engine vs GaterAge
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026.
The short answer
- Only GaterAge lists a free plan. Paid plans start at $9/month for Compliance Engine and $2.99/month for GaterAge.
- Compliance Engine lists 4 features GaterAge’s listing doesn’t mention, including Checkboxes, Compliance reports, Product warnings.
Head to head
Starter
- · 7 day diagnostics retention
- · Cart warnings
- · Email support
- · Product page warnings
- · Rule based compliance
- · Unlimited warnings
Pro
- · 90 day diagnostics retention
- · Cart warnings
- · Priority email support
- · Product page warnings
- · Rule based compliance
- · Unlimited warnings
Plus
- · Cart warnings
- · Checkout warnings
- · One year diagnostics retention
- · Priority support with guidance
- · Product page warnings
- · Unlimited checkout log
Free
- · Set your own verification age
- · Storefront customisability
Professional
- · Checkout product targeting
- · Custom checkout messaging
- · Remove GaterAge branding
- · Restrict storefront verification by page
- · Set your own verification age
- · Storefront customisability
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCompliance Engine helps merchants identify and address compliance risks before they impact customers or orders. It monitors product pages, cart, and checkout, and displays warnings when defined rules are triggered. Merchants can create rule based conditions to control when messages appear, guide customer actions, and manage restricted or non compliant purchases.
GaterAge helps merchants manage age-restricted products by adding a simple, customisable age check to their storefront and checkout. Set age requirements, choose where and when the prompt appears, and customise the design to fit your brand. The app works with most themes and includes a checkout extension for added coverage.
- Real-time compliance checks: Flag risks on product, cart, and checkout pages
- Rule-based control: Set conditions to trigger warnings or restrict actions.
- Checkout validation: Prevent orders that do not meet compliance requirements.
- Customise age check prompts for both storefront and checkout.
- Set age limits and control when and where prompts appear.
- Update settings easily from the admin without editing code.
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 |  Compliance Engine |  GaterAge |
|---|---|---|
| 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 | Compliance Engine | GaterAge |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | 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 | Compliance Engine | GaterAge |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $9/month | $2.99/month(ahead) |
| Longest free trial | 7 days | 14 days |
| Plans listed | 3 | 2 |
Listing
| Measure | Compliance Engine | GaterAge |
|---|---|---|
| Shopify category rank | #398(ahead) | #522 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 6, 2026 | Nov 19, 2025 |
| Languages | 1 | 1 |
| Developer | ST Systems Consulting, Inc. | Ordello |
FAQ
Compliance Engine and GaterAge: common questions
- Is Compliance Engine or GaterAge cheaper?
- Only GaterAge lists a free plan. Paid plans start at $9/month for Compliance Engine and $2.99/month for GaterAge. 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?
- Compliance Engine lists 4 the others don’t mention, such as Checkboxes, Compliance reports, Product warnings, Widget position. GaterAge lists 2 the others don’t mention, such as Buttons, Page restriction. 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; 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. 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.