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🔬 Lab Findings 🔧 Stack Builder

Referral Apps for Shopify — Performance Ranked

4 benchmarked referral marketing apps, ranked by real JavaScript overhead measured in StackConflict's clean-room lab.

4 Apps benchmarked
2 Grade A or B
20 ms Avg CPU cost
80 ms Avg mobile CPU
★ 4.8 Avg merchant rating
FASTEST

Refersion is the lightest referral marketing app we've tested — 21.17 KB payload and 6 ms CPU (Grade A).

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#1
A
Refersion
by Refersion
📦 21.17 KB
⚡ 6 ms desktop
📱 31 ms mobile ✓
★ 4.7 484
Lightweight
#2
A
Tapfiliate
by Tapfiliate
📦 11.63 KB
⚡ 5 ms desktop
📱 16 ms mobile ✓
📐 Layout stable
★ 5 1
Lightweight
#3
C
ReferralCandy
by ReferralCandy
📦 213.14 KB
⚡ 11 ms desktop
📱 37 ms mobile ✓
★ 4.9 1k
Heavy
#4
D
Ambassador
by Ambassador
📦 887.2 KB
⚡ 59 ms desktop
📱 305 ms mobile ✓
★ 4.6 61
Critical

How we measure — Each app is injected into a clean Shopify dev store in a Playwright-controlled browser with no other apps installed. V8 CPU cost is the ScriptDuration delta before and after injection. Mobile estimate applies Google Lighthouse's 4× slowdown factor.

Read the full methodology →