32,218 Shopify stores currently have Cluster installed, representing 1.5% of all active Shopify stores.
At a glance: Cluster is the #72 most-installed Shopify app of the 8,745 with active installs, and #3 of 140 in Pop-ups. It is most often installed alongside Judge.me Product Reviews App and Sticky Add To Cart Bar Pro. Its largest market is United States (39% of its stores).
Cluster is installed on 32,218 of the 2,125,912 active Shopify stores worldwide tracked by StoreCensus. This makes it a notable player in the Pop-ups category, with a 1.5% market share.
Unlike the Shopify App Store's historical download counts, our data reflects current active installations. We detect Cluster through storefront signature analysis across millions of stores, providing accurate real-time adoption metrics that matter for market analysis and competitive intelligence.
Over the past 30 days, Cluster has gained 15,416 net installs, representing a 91.8% change from 16,802 installs. The 90-day trajectory shows growth of 17,790 installs (123.3%).
Year-over-year, Cluster has grown by 284.9%, moving from 8,371 installs to 32,218. This represents exceptional growth in a competitive market.
Cluster shows strong adoption among established businesses, with 100% of users operating stores generating over $100K annually. The platform attracts a balanced mix across revenue tiers, though 0% of stores fall under $50K in annual revenue, indicating accessibility for emerging brands. The 13% penetration among $1M+ stores demonstrates enterprise-level trust, where merchants typically maintain complex tech stacks and face high switching costs.
| Revenue Tier | Stores | Percentage |
|---|---|---|
| $10M+ | 5 | 0.1% |
| $1M – $10M | 98 | 2.0% |
| $100K – $1M | 569 | 11.4% |
| <$100K | 4,327 | 86.6% |
Jewelry & Accessories leads adoption at 21%, followed by Home & Garden at 9% and Fashion & Apparel at 7%. Together, these three verticals represent over half of Cluster's install base. This concentration reflects industries where email marketing drives significant repeat purchase revenue through seasonal campaigns, product launches, and loyalty programs that benefit from sophisticated segmentation and automation capabilities.
39% of Cluster stores are in United States, in line with its 35% share of all Shopify stores. 10% of Cluster stores are in United Kingdom, more than its 8% share of all Shopify stores. 7% of Cluster stores are in Canada, in line with its 6% share of all Shopify stores.
Stores using Cluster typically build comprehensive retention-focused tech stacks. 19% also use Judge.me Product Reviews App for product reviews, while 18% pair it with Sticky Add To Cart Bar Pro for cart customization. The 17% overlap with Klaviyo: Product Reviews indicates merchants unifying customer communication across email, SMS, and support channels. This pairing pattern reveals stores prioritizing customer lifetime value optimization over one-time acquisition, with integrated tools for reviews, loyalty, and recurring revenue.
Cluster competes in the Pop-ups category with 32,218 installs, compared to Klaviyo: Email Marketing & SMS's 299,483. Strong recent growth indicates increasing market share within the category.
| App | Installs | Market Share |
|---|---|---|
| Klaviyo: Email Marketing & SMS | 299,483 | 11.0% |
| Madman ‑ Countdown TImer | 185,672 | 6.8% |
| Shopify Forms | 148,796 | 5.5% |
Install data shows market position by adoption — but organic discoverability is another dimension. See which keywords Cluster ranks for in App Store search to understand its full competitive footprint.
As of October 9, 2026, 32,218 Shopify stores have Cluster installed, representing 1.5% of all active Shopify stores tracked by StoreCensus.
Cluster has gained 15,416 net installs over the past 30 days (91.8% change) and gained 17,790 installs over 90 days (123.3% change). Year-over-year growth is 284.9%.
Cluster is most popular in Jewelry & Accessories (21.1% of users), followed by Home & Garden (8.9%). The app is used across stores of all sizes.
StoreCensus updates Cluster installation data weekly through continuous monitoring of 2,125,912+ active Shopify stores. We detect installations through storefront signature analysis, providing accurate current install counts rather than historical download numbers.
Cluster holds a 1.5% market share in its category. To see how it compares to direct competitors, check the Market Position section on this page which shows install counts and market share for similar apps in the same category.
With 32,218 active installations, Cluster is a popular solution. Consider the 90-day growth trend (123.3%) to understand momentum, and review the industry breakdown to see if stores similar to yours use it. Always test on a development store first and check recent app store reviews for current user sentiment.
32,218 Shopify stores currently use Cluster. This data is updated weekly based on continuous monitoring of 2,125,912+ active Shopify stores.
Build targeted prospect lists of stores using Cluster. Filter by revenue, industry, country, and more.
Cluster is installed on 32,218 of the 2,125,912 Shopify stores tracked by StoreCensus, representing a 1.50% market penetration rate. It is categorized under Pop-ups.
Cluster is installed on 32,218 Shopify stores, representing 1.5% of all tracked stores. This adoption level reflects meaningful merchant validation across a competitive app marketplace.
Over the past 90 days, Cluster has gained 17,790 net installs (+123.3%). Positive 90-day momentum indicates continued merchant adoption.
Cluster is frequently installed alongside Judge.me Product Reviews App and Sticky Add To Cart Bar Pro, suggesting merchants use it as part of a broader technology stack rather than as a standalone solution.
Interpretations are based on observed StoreCensus data. Directional observations only - not financial or business advice.
Based on StoreCensus tracking of 2,125,912 active Shopify stores.
How Cluster relates to other apps in the Shopify ecosystem, based on co-installation patterns and category relationships.
Apps commonly paired with Cluster
Apps merchants consider as alternatives
Co-installation data is derived from observed patterns across StoreCensus-tracked stores. Overlap percentages indicate the share of Cluster users who also have the listed app installed.
Data is refreshed on a weekly basis and reflects observed platform activity across active ecommerce stores. StoreCensus detects app and plugin installations through storefront signature analysis including JavaScript signatures, API calls, and HTML markers — measuring current active installations, not historical download counts.
StoreCensus continuously discovers and indexes active Shopify storefronts globally. Our crawler identifies 2,125,912+ live stores through domain analysis, platform signals, and third-party data sources.
App and plugin installations are detected through storefront signature analysis — including JavaScript bundle signatures, API endpoint patterns, HTML data attributes, and network request fingerprints. This identifies apps that are currently active, not merely historically downloaded.
Each store is re-scanned on a recurring basis. Historical snapshots are retained to calculate 30-day, 90-day, and year-over-year growth rates. This enables trend analysis that reflects actual merchant behavior over time, not just point-in-time counts.
Disclaimer: Estimated metrics (revenue, traffic) should be considered directional estimates rather than audited financial data. Active install counts reflect StoreCensus detection capability and may not capture 100% of installations for apps with non-standard implementation patterns.
This page presents data from the Cluster Installation Statistics proprietary StoreCensus dataset. Statistics may change over time as stores are discovered, removed, or updated in our index.
StoreCensus does not receive compensation from app developers or vendors for rankings or placement. All rankings are determined solely by observed installation data across tracked Shopify storefronts.
