← All apps Chat Reamaze vs Sierra
🔬 Lab Findings 🔧 Stack Builder
⚡ Faster
D
Reamaze
787.3 KB · 42 ms CPU
★ 4.4 · 175 reviews
Critical
VS
⏳ Pending
?
Sierra
Data pending
Under Review
Metric Reamaze Sierra
Overall Grade D B
JS Payload 787.3 KB 122.49 KB
CPU Desktop 42 ms Pending ⏳
CPU Mobile 170 ms Pending ⏳
Layout Shift 0 0.0006
Merchant Rating ★ 4.4 (175)

Reamaze vs Sierra: Shopify Performance Comparison

Data pending for Sierra — 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 Reamaze and Sierra provide live chat and customer support functionality for Shopify stores.

What We Know: Reamaze (Benchmarked)

Reamaze has been measured in StackConflict’s clean-room lab:

MetricReamaze
Overall GradeD
JS Payload787.3 KB
CPU Desktop42 ms
CPU Mobile170 ms (0.2s)
Layout Shift0.0

Grade D indicates Reamaze carries a significant JavaScript footprint. Check the full report for lighter alternatives in this category.

View full Reamaze speed report →

Pending: Sierra

StackConflict’s scanner detected that Sierra 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 Sierra will appear here automatically.

View Sierra 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.


Reamaze data from the StackConflict Lab (2026-05-30). Sierra data pending.