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🔬 Lab Findings 🔧 Stack Builder

Chat Apps for Shopify — Performance Ranked

9 benchmarked live chat and customer messaging apps, ranked by real JavaScript overhead measured in StackConflict's clean-room lab.

9 Apps benchmarked
4 Grade A or B
23 ms Avg CPU cost
92 ms Avg mobile CPU
★ 4.6 Avg merchant rating
FASTEST

AeroChat is the lightest live chat and customer messaging app we've tested — 11.93 KB payload and 4 ms CPU (Grade A).

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#1
A
AeroChat
by AeroChat
📦 11.93 KB
⚡ 4 ms desktop
📱 24 ms mobile ✓
★ 5 1
Lightweight
#2
A
Zendesk Chat
by Zendesk
📦 26.75 KB
⚡ 6 ms desktop
📱 11 ms mobile ✓
📐 Layout stable
★ 3.5 83
Lightweight
#3
B
2ConnectMe
by 2ConnectMe
📦 87.87 KB
⚡ 44 ms desktop
📱 121 ms mobile ✓
📐 Layout stable
Acceptable
#4
B
Freshchat
by Freshworks
📦 68.26 KB
⚡ 6 ms desktop
📱 16 ms mobile ✓
Acceptable
#5
C
charles
by hello charles
📦 241.69 KB
⚡ 48 ms desktop
📱 67 ms mobile ✓
Heavy
#6
C
QuickCEP
by QuickCEP
📦 163.5 KB
⚡ 4 ms desktop
📱 20 ms mobile ✓
📐 Layout stable
★ 4.9 58
Heavy
#7
C
Tidio
by Tidio
📦 422.88 KB
⚡ 16 ms desktop
📱 53 ms mobile ✓
📐 Layout stable
★ 4.7 1k
Heavy
#8
C
VanChat
by VanChat
📦 279.2 KB
⚡ 35 ms desktop
📱 117 ms mobile ✓
📐 Layout stable
★ 5 125
Heavy
#9
D
Reamaze
by Reamaze
📦 787.3 KB
⚡ 42 ms desktop
📱 170 ms mobile ✓
★ 4.4 175
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 →