Gravity Software vs Limit Quantity: Shopify Performance Comparison
Both apps score Grade B — Limit Quantity has the edge with 14 ms vs 32 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 | Gravity Software | Limit Quantity | Faster |
|---|---|---|---|
| Overall Grade | B | B | Tie |
| JS Payload | 131.35 KB | 127.41 KB | Limit Quantity |
| CPU Desktop | 32 ms | 14 ms | Limit Quantity |
| CPU Mobile | 150 ms | 19 ms | Limit Quantity |
| Layout Shift | 0.0 | 0.0 | Gravity Software |
Mobile CPU measured with 4× CDP throttle (mid-range Android). Tested 2026-05-30.
Limit Quantity — The Faster Option (Grade B)
Limit Quantity scores Grade B with a JS payload of 127.41 KB and 14 ms desktop CPU execution. Mobile CPU: 19 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 Limit Quantity speed report →
Gravity Software — The Heavier Option (Grade B)
Gravity Software scores Grade B with a JS payload of 131.35 KB and 32 ms desktop CPU execution. Mobile CPU: 150 ms. Performance is acceptable but worth monitoring, particularly on stores with high mobile traffic share.
View full Gravity Software speed report →
When to Choose Gravity Software
- 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 Limit Quantity
- 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 — Limit Quantity has the edge with 14 ms vs 32 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.