Black Crow vs Rebuy: which slows a Shopify store more?
Black Crow is usually the lighter of the two. On the typical store it was light, while Rebuy was heavy.
Both are personalization and recommendation apps. We measured Black Crow on 30 Shopify ecommerce stores and Rebuy on 135.
Personalization and recommendations
Side by side
| App | Typical processing time | Stores measured |
|---|---|---|
| Black Crow | Light (under 100 ms) | 30 |
| Rebuy | Heavy (300 ms to 1 second) | 135 |
Black Crow was light on 93% of the stores it was measured on. Rebuy was heavy on 53% of the stores it was measured on.
On stores that run both
12 of the stores we checked load both. Black Crow took less processing time than Rebuy on 12 of them.
Each band is an app's typical processing time across the stores it was measured on. Those stores differ from app to app. That makes the result on stores that run both the fairer test. Apps found on fewer than 20 stores aren't listed yet. The list grows as more stores are checked.
All apps in the index · How we measure these numbers
ShopWeight isn't affiliated with Shopify or with any app maker listed here.
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