Reverse ETL alternatives are worth considering when the incumbent gets expensive, restrictive, or invasive.

Data synchronization framework focused on external apps

Why consider the swap

If you currently rely on NewRelic and want more control over data, lower long-term costs, or a open-source licensing model, Castled covers most of the same ground.

What you trade off

Most open-source alternatives require more setup than their commercial counterparts and may lag on polish, mobile apps, or ecosystem integrations. Check the project’s documentation for current feature parity with NewRelic before committing.

Where to start

• Project page: Castled
• Comparison reference: NewRelic

This recommendation is indexed from awesome-oss-alternatives. Read their full project notes for the latest changes.