Coming Soon vs UserWay Accessibility Widget: Shopify Performance Comparison
Both apps score Grade B — Coming Soon has the edge with 4 ms vs 12 ms desktop CPU execution.
Both apps provide general Shopify store enhancement 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 | Coming Soon | UserWay Accessibility Widget | Faster |
|---|---|---|---|
| Overall Grade | B | B | Tie |
| JS Payload | 84.99 KB | 112.17 KB | Coming Soon |
| CPU Desktop | 4 ms | 12 ms | Coming Soon |
| CPU Mobile | 9 ms | 83 ms | Coming Soon |
| Layout Shift | 0.0 | 0.0 | Coming Soon |
Mobile CPU measured with 4× CDP throttle (mid-range Android). Tested 2026-05-30.
Coming Soon — The Faster Option (Grade B)
Coming Soon scores Grade B with a JS payload of 84.99 KB and 4 ms desktop CPU execution. Mobile CPU: 9 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 Coming Soon speed report →
UserWay Accessibility Widget — The Heavier Option (Grade B)
UserWay Accessibility Widget scores Grade B with a JS payload of 112.17 KB and 12 ms desktop CPU execution. Mobile CPU: 83 ms. Performance is acceptable but worth monitoring, particularly on stores with high mobile traffic share.
View full UserWay Accessibility Widget speed report →
When to Choose Coming Soon
- 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 UserWay Accessibility Widget
- 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 — Coming Soon has the edge with 4 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.