AdsAgent vs WCT (Wishlist & Cart Tracking): Shopify Performance Comparison
Both apps score Grade A — AdsAgent has the edge with 3 ms vs 12 ms desktop CPU execution.
Both apps provide heatmaps, session recording, and analytics functionality for Shopify stores. This page presents StackConflict’s independent lab results for both — measured in a clean-room environment with no other apps installed.
Head-to-Head Metrics
| Metric | AdsAgent | WCT (Wishlist & Cart Tracking) | Faster |
|---|---|---|---|
| Overall Grade | A | A | Tie |
| JS Payload | 2.34 KB | 29.0 KB | AdsAgent |
| CPU Desktop | 3 ms | 12 ms | AdsAgent |
| CPU Mobile | 12 ms | 35 ms | AdsAgent |
| Layout Shift | 0.0 | 0.0005 | AdsAgent |
Mobile CPU measured with 4× CDP throttle (mid-range Android). Tested 2026-05-30.
AdsAgent — The Faster Option (Grade A)
AdsAgent scores Grade A with a JS payload of 2.34 KB and 3 ms desktop CPU execution. Mobile CPU: 12 ms. It passes every StackConflict threshold for payload, CPU, and layout stability — making it safe to install on any storefront including mobile-first stores where Time-to-Interactive directly impacts conversion.
View full AdsAgent speed report →
WCT (Wishlist & Cart Tracking) — The Heavier Option (Grade A)
WCT (Wishlist & Cart Tracking) scores Grade A with a JS payload of 29.0 KB and 12 ms desktop CPU execution. Mobile CPU: 35 ms. Performance is acceptable but worth monitoring, particularly on stores with high mobile traffic share.
View full WCT (Wishlist & Cart Tracking) speed report →
When to Choose AdsAgent
- You are running a mobile-heavy store and Core Web Vitals matter
- You want to stack multiple apps without worrying about combined JS cost
- Conversion rate optimisation is a key priority
When to Choose WCT (Wishlist & Cart Tracking)
- You are running a mobile-heavy store and Core Web Vitals matter
- You want to stack multiple apps without worrying about combined JS cost
- Conversion rate optimisation is a key priority
Performance Verdict
Result: Comparable — Both apps score Grade A — AdsAgent has the edge with 3 ms vs 12 ms desktop CPU execution.
About This Test
StackConflict measures each Shopify app in an isolated clean-room environment — a single development store, no other scripts, Playwright-controlled browser. V8 CPU cost is the ScriptDuration delta before and after injection. CLS is captured from the same browser session. Results represent the median of three independent runs with outliers removed.
Data from the StackConflict Lab. Last updated 2026-05-30.