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Castled.io vs Whaly

People
Castled.ioReverse ETL
WhalyCustomer Data Platforms
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Price
Free

Reverse ETL

Annual estimate10 people, entry price
Free
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Reverse ETL

Overview
Focus
Reverse ETL
Customer Data Platforms
Product
Open-source reverse ETL platform for syncing data from warehouses to CRM, marketing, and support tools.
Data activation platform combining BI and reverse ETL for syncing warehouse insights to business workflows.
Headquarters
Bengaluru, India
Paris, France
Company size
11-50 employees
11-50 employees
Founded
2021
2020
Pricing details
Published rate
Free
Free options
Free plan
Source updated
Oct 29, 2026
Nov 1, 2026

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Reverse ETL