Pledge vs Trust Badge: Shopify Performance Comparison
Both apps score Grade B — Pledge has the edge with 3 ms vs 15 ms desktop CPU execution.
Both apps provide trust badges and security signals 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 | Pledge | Trust Badge | Faster |
|---|---|---|---|
| Overall Grade | B | B | Tie |
| JS Payload | 65.32 KB | 100.73 KB | Pledge |
| CPU Desktop | 3 ms | 15 ms | Pledge |
| CPU Mobile | 7 ms | 45 ms | Pledge |
| Layout Shift | 0.0 | 0.0 | Pledge |
Mobile CPU measured with 4× CDP throttle (mid-range Android). Tested 2026-05-31.
Pledge — The Faster Option (Grade B)
Pledge scores Grade B with a JS payload of 65.32 KB and 3 ms desktop CPU execution. Mobile CPU: 7 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 Pledge speed report →
Trust Badge — The Heavier Option (Grade B)
Trust Badge scores Grade B with a JS payload of 100.73 KB and 15 ms desktop CPU execution. Mobile CPU: 45 ms. Performance is acceptable but worth monitoring, particularly on stores with high mobile traffic share.
View full Trust Badge speed report →
When to Choose Pledge
- You need its specific features and can monitor its mobile impact
- Your other apps are lightweight (Grade A) so there is headroom
- You are on desktop-skewed traffic where CPU cost matters less
When to Choose Trust Badge
- You need its specific features and can monitor its mobile impact
- Your other apps are lightweight (Grade A) so there is headroom
- You are on desktop-skewed traffic where CPU cost matters less
Performance Verdict
Result: Comparable — Both apps score Grade B — Pledge has the edge with 3 ms vs 15 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 2026-05-31.