5 Best Shopify App Detector Alternatives for B2B (2026)

SyncGTM goes beyond Shopify App Detector by treating app detection as the starting point, not the endpoint. When you identify a Shopify store running Klaviyo, ReCharge, or Yotpo, SyncGTM runs a waterfall across 50+ data providers to surface the decision-maker behind the store — verified email, phone number, company size, revenue band, headcount, and buying signals — all in one enrichment run.

For teams selling to Shopify merchants, that means you go from "this store uses Klaviyo" to "here's the decision-maker's verified email and the latest buying signal" without stitching together a separate enrichment tool. Each record combines contact data (verified work email and phone number), firmographics (company size and revenue range), and buying signals such as hiring, funding, and headcount growth.

SyncGTM has native CRM integrations with Salesforce, HubSpot, Pipedrive, Attio, and Close, so enriched Shopify merchant records can move into the CRM your team already uses. It is free to start, and you can explore ready-made workflows in the templates library or see what it connects to under integrations.

BuiltWith is the oldest and broadest technology intelligence platform on the web, indexing over 28,000 technologies across more than 700 million websites. For teams targeting Shopify merchants by their app stack, BuiltWith gives the most comprehensive historical data — you can see not just what apps a store uses today, but what it used to run, when it switched, and how its tech stack evolved over time.

For B2B sales teams, BuiltWith's Shopify-specific filtering is a strong ICP tool: build lists of stores using Klaviyo for email, ReCharge for subscriptions, or Gorgias for support, and filter by geography, traffic tier, or company size. The platform also surfaces spend estimates and technology adoption trends across entire Shopify segments, which is useful for timing outreach to stores actively evaluating replacements.

The gap is enrichment and outreach. BuiltWith returns a list of domains and basic firmographic signals — it does not find the decision-maker, verify an email, or send a sequence. Teams using BuiltWith for Shopify targeting typically stack it with Hunter or Snov.io for contacts and a separate sequencer, which adds cost and workflow overhead.

Store Leads is a Shopify-native lead database that indexes over 4 million Shopify and WooCommerce stores, refreshes data weekly, and lets you filter by installed apps, platform theme, product categories, traffic tier, and geography. It is the closest purpose-built alternative to a Shopify App Detector for bulk prospecting — designed specifically for B2B sales teams targeting ecommerce merchants at scale.

Where a Shopify App Detector gives you a single-store snapshot, Store Leads lets you pull thousands of stores matching a filter — "give me all Shopify stores using Klaviyo with over 500 products, based in the US, generating estimated revenue above $500K." That bulk discovery workflow is what teams building targeted Shopify prospect lists actually need. G2 reviewers consistently cite Store Leads as a strong replacement for manual Shopify app detection at volume.

Contact data is the gap. Store Leads provides the store owner name and email in many cases, but it is not a full enrichment platform — verified work email, direct phone, LinkedIn, and firmographic depth require a separate step. For teams that need contacts beyond the store owner, a dedicated enrichment tool is needed for that second layer.

Wappalyzer is a technology profiler best known for its Chrome extension, which shows the tech stack of any website you visit — frameworks, CMS, marketing tools, and Shopify apps — in real time. For B2B teams that want to quickly qualify a Shopify prospect by their app stack without a database lookup, Wappalyzer's extension is the fastest way to check a store's technology in a single click.

Beyond the extension, Wappalyzer's API and lead database let teams run bulk technology lookups across lists of URLs — useful for qualifying an inbound lead list or enriching a CSV of Shopify store domains with their current app stack. The Business plan at $250/mo includes access to 3,000+ tracked technologies and a leads database with email addresses sourced from public data.

The trade-off is coverage and depth. Wappalyzer detects apps from page-level signals, so it misses server-side apps that do not expose a frontend signature — which in Shopify can mean newer or headless-installed apps go undetected. Contact data is also thin: the included emails are scrape-sourced from public data.

StoreInspect is a Shopify-focused detection and lead platform that indexes over 1.46 million Shopify stores, detects 400+ apps and pixels, and includes a built-in contact finder to surface emails for store decision-makers. For teams early in their Shopify prospecting journey who want app detection and basic contact data without a large budget, it is the most affordable option on this list at $17/mo.

The tool covers the core workflow: paste or upload Shopify store URLs, detect the apps installed, filter by technology, and get associated contact emails. StoreInspect runs each store against a database of 400+ app fingerprints — covering the major marketing, subscription, and support apps — and flags the ones matching your ICP filter, which is close to what Shopify App Detector does but with a contact layer on top.

StoreInspect is best at the top of the funnel. It answers "which Shopify stores are using App X" and provides a first-pass contact, but firmographic depth, buyer intent signals, and verified direct phone are not in scope. Teams that want to go beyond the store owner email need to route those contacts through a dedicated enrichment tool for the next layer.