Warn

Shopify pop-ups app by Effective Apps·Smart geolocation custom popups & alerts. Ensure Prop 65(P65) store compliance and reduce legal risk

Snapshot

4.90(8 reviews)#140of 432 inPop-ups

Ongoing.AI tracks Warn daily — category rank, keyword positions in App Store search, install footprint, listing changes, and reviewer sentiment — back to when we first observed the listing.

CategoriesPop-upsProduct variants

Rating

4.90

8 reviews

Pricing

Free

free

Built for Shopify

No

Years live

6

launched Dec 23, 2019

Last updated

Jul 1, 2026

Shopify listing

Catalog position

Where Warn sits in the App Store.

Rank and percentile inside the Pop-ups category — the competitive shape of the niche around this app.

Rank in Pop-ups

#140

of 432 active apps

Review count percentile

68th

vs category siblings

Rating percentile

63th

vs category siblings

Years on App Store

6

since 2019

Listing change cadence

What Warn has changed lately.

Every pricing tweak, tagline refresh, and Shopify-side listing ping. Captured from Ongoing.AI’s per-scrape diff log — the cadence and the content of changes, in one strip.

Listing changes · last 21 days+14shopify_lastmod: 2026-06-04 → 2026-06-16shopify_lastmod: 2026-06-16 → 2026-06-23shopify_lastmod: 2026-06-23 → 2026-06-26shopify_lastmod: 2026-06-26 → 2026-06-27shopify_lastmod: 2026-06-27 → 2026-06-28name: Warn: Country Product Warnings → Warn: Product Warning Popupstagline: Add geolocation country warnings… → Smart geolocation custom popups …description: Warn allows you to notify custom… → Selling restricted items? Don't …pricing_model: freemium → freepricing_tiers: Free Plan (+1 more) → noneprimary_price_value: 4 → noneworks_with: none → Checkoutshopify_lastmod: 2026-06-28 → 2026-07-01Jun 13, 26Jun 23, 26Jul 4, 26

Shopify Lastmod · Jul 2

2026-06-28 → 2026-07-01

Works With · Jun 29

none → Checkout

Primary Price Value · Jun 29

4 → none

PricingIdentity & listingCadence

Reviews

What merchants are saying

4.90(8 reviews)
  • 100%positive14
  • 0%neutral0
  • 0%negative0

Top themes

    What merchants praise

    “I used the app so that I could create an alert for my customers. I am so very happy. Excellent app!!”
    Naomi Rose Essentials · 5★

    Capabilities

    What Warn can do.

    The 20 capabilities Warn lists across each of its 2 categories, in Shopify’s own taxonomy. Pulled directly from the App Store listing.

    Pop-ups

    Pop-up types

    7
    • Discounts
    • Banners
    • Announcements
    • Warning pop-ups
    • Age verification
    • Consent pop-ups
    • Custom pop-ups

    Managing pop-ups

    5
    • Editor tool
    • Custom code
    • Custom fonts
    • Triggers and rules
    • A/B testing

    Product variants

    Customization

    5
    • Conditional logic
    • Custom text
    • Custom CSS
    • Custom HTML
    • Preview

    Pricing

    2
    • Bulk pricing
    • Conditional pricing

    Inventory

    1
    • Stock availability

    FAQ

    Warn — frequently asked questions.

    What is Warn on Shopify?
    Warn, officially listed on the Shopify App Store as Warn: Product Warning Popups, is a Shopify app in the Pop-ups category. Selling restricted items? Don't risk liability. Warn automates legal compliance using smart geolocation warnings. Easily show mandatory Prop 65(P65) notices, an 18+ popup for simple age verification, IP-based alerts & checkout blocks. Leverage filtering: country, products, and collection rules to display your custom warnings only when required. Secure your store with accurate geo-warnings, VAT policies, local restrictions alerts, and reduce shipping refunds while keeping checkout frictionless. It averages 4.90 out of 5 across 8 merchant reviews on the Shopify App Store.
    How much does Warn cost?
    Warn is free to install and use on Shopify — there are no paid plans on this app.
    Is Warn free?
    Yes — Warn is free to install and use on Shopify. There are no paid plans.
    When was Warn launched?
    Warn launched on December 23, 2019 — over 6 years on the Shopify App Store. In that time it has gathered 8 merchant reviews.
    Is Warn Built for Shopify?
    Warn does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.
    What are the best Warn alternatives?
    Merchants commonly compare Warn with Pop Convert, SendWILL Popup Email Marketing, Globo Product Options, Variant, and Smile. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.

    Alternatives

    Apps merchants pick instead.

    Pop Convert

    Pop Convert ‑ Pop Ups, Banners

    4.90★8,311

    Known for: pricing

    SendWILL

    SendWILL Popup Email Marketing

    4.90★7,085

    Known for: customer-support

    Globo Options

    Globo Product Options, Variant

    4.90★4,588

    Known for: missing-feature

    Smile.io

    Smile: Loyalty Program Rewards

    4.90★4,292
    Browse more inAll Pop-ups apps All Product variants apps

    Methodology

    Where the numbers come from.

    Ratings, review counts, pricing tiers, “Built for Shopify”, launch date, and category memberships come from the live Shopify App Store listing — refreshed daily by Ongoing.AI’s crawler. The review-count trajectory is the diff between today’s snapshot and snapshots from 7 and 28 days ago. Topic counts and sentiment come from the review corpus, topic-tagged with Claude. Install footprint is observed via Ongoing.AI’s tech-detection pass against actively-tracked Shopify storefronts. Catalog position is computed at snapshot time against every active app sharing the primary category. Snapshot generated .

    Find every brand running Warn.

    Ongoing.AI tracks every Shopify brand’s app stack daily. Pull the full install list, filter by vertical or geography, and catch the moment merchants install — or churn off.

    Track Warn — free Start free

    Prefer the source? View Warn on the Shopify App Store ↗