Mantle vs Richpanel: Shopify Performance Comparison
Mantle wins with Grade A vs Grade B — a one-grade performance difference that compounds on mobile devices.
Both apps provide helpdesk and customer support 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 | Mantle | Richpanel | Faster |
|---|---|---|---|
| Overall Grade | A | B | Mantle |
| JS Payload | 21.03 KB | 42.34 KB | Mantle |
| CPU Desktop | 4 ms | 13 ms | Mantle |
| CPU Mobile est. | 45 ms | ~52 ms | Mantle |
| Layout Shift | 0.0005 | 0.0 | Richpanel |
Mobile CPU applies the 4× Lighthouse throttle for mid-range Android. Tested 2026-05-30.
Mantle — The Faster Option (Grade A)
Mantle scores Grade A with a JS payload of 21.03 KB and 4 ms desktop CPU execution. Mobile CPU: 45 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 Mantle speed report →
Richpanel — The Heavier Option (Grade B)
Richpanel scores Grade B with a JS payload of 42.34 KB and 13 ms desktop CPU execution. Mobile estimated cost: ~52 ms. Performance is acceptable but worth monitoring, particularly on stores with high mobile traffic share.
View full Richpanel speed report →
When to Choose Mantle
- 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 Richpanel
- 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
Winner: Mantle — Mantle wins with Grade A vs Grade B — a one-grade performance difference that compounds on mobile devices.
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.