ReferralCandy vs UpPromote: Shopify Performance Comparison
⏳ Data pending for UpPromote — our scanner captured only the async loader stub for this app. Full bundle metrics are being collected from live Shopify storefronts. Once available, this page will show a complete head-to-head comparison.
Both ReferralCandy and UpPromote provide referral marketing functionality for Shopify stores.
What We Know: ReferralCandy (Benchmarked)
ReferralCandy has been measured in StackConflict’s clean-room lab:
| Metric | ReferralCandy |
|---|---|
| Overall Grade | C |
| JS Payload | 213.14 KB |
| CPU Desktop | 11 ms |
| CPU Mobile | 37 ms (0.0s) |
| Layout Shift | 0.0 |
Grade C indicates ReferralCandy carries a significant JavaScript footprint. Check the full report for lighter alternatives in this category.
View full ReferralCandy speed report →
Pending: UpPromote
StackConflict’s scanner detected that UpPromote uses an async JavaScript loader — a small stub that only initialises its full bundle on a real, authenticated Shopify storefront. This means our lab environment captured the tiny stub file only, not the production bundle that actually runs on live stores.
We are collecting real bundle data by scanning public Shopify storefronts. Once captured, the head-to-head metrics for UpPromote will appear here automatically.
View UpPromote on Shopify App Store →
About This Test
StackConflict measures each Shopify app in an isolated clean-room environment — a Playwright-controlled browser with no other scripts installed. V8 CPU cost is the ScriptDuration delta measured before and after bundle injection. Mobile CPU applies the standard 4× Lighthouse slowdown factor.
ReferralCandy data from the StackConflict Lab (2026-05-31). UpPromote data pending.