Cartlens reads the public catalogs of thousands of Shopify stores, tracks them over time, and turns the changes into signal: trending products, price moves, stockouts to capture, and a weekly brief on every rival.
The same engine that finds your next product watches the rivals you already have. Pick where you are — Cartlens is useful from day one, before you've sold a thing.
See what's rising across thousands of stores, where the gaps are, and who already owns each niche — before it's obvious.
Connect your store and Cartlens tracks your competitors automatically — every price cut, new drop, and stockout, summarized weekly.
Distribution is the tell. When a product shows up in more and more stores, holds its price, and keeps selling out, demand is real — not hype. Cartlens measures that across the whole market so you enter early, not late.
Cartlens snapshots your rivals' catalogs on a schedule and tells you only what changed — the price cut, the new flavor, the SKU that just sold out. The signal that matters most isn't their price; it's their stockout on a product you both sell.
Discovery is moving from search results to AI recommendations. Cartlens runs a niche's real buying questions through the answer engines and shows whose brand gets cited — so you know if you're in the conversation, or invisible.
Fixed prompt set run across the LLM APIs; brand citations parsed and scored.
Every Shopify store publishes its catalog. Cartlens reads products, prices, and availability across three sources per product and fuses them into one confident record.
Fast-movers daily, the long tail weekly. Each snapshot is kept, so we can tell the difference between this week and last — the change is the whole point.
A price cut, a new drop, a stockout on a product you both sell — filtered to what matters and delivered as a two-minute brief every Monday.
No dashboard to check. The intelligence comes to you — a per-competitor digest that reads like a colleague who watched your market all week.
Kaged — Pre-Kaged Elite out of stock 9 days. Your #1 overlap; you're stocked.
MyProtein launched 4 Creatine SKUs into your core category.
MyProtein cut Impact Whey −20% — now 12.5% under you.
Traffic estimators miss the DTC brand quietly winning on TikTok. We read what stores actually do: what sells out, what spreads to more shelves, what holds its price. Signals that come straight from the catalog, timestamped and cross-checked — closer to the truth than any traffic guess, and impossible to back-fill once you've started tracking.
Paid plans are billed monthly — manage your subscription any time in Settings → Billing.
Paste a store URL to try the free lookup — then let Cartlens watch your whole market for you.