Why Castessa

Social media reporting European agencies can stand behind

Castessa was built for agencies that manage social media for other businesses — where accuracy, client trust and data protection aren't optional. We bring Facebook and Instagram performance into one honest, GDPR-compliant workspace.

Clarity over vanity

We separate organic from boosted and show unavailable metrics honestly — never a fabricated zero. Agencies win trust with numbers clients can rely on.

Privacy by default

GDPR isn't a checkbox. Data is processed in the EU, analytics are cookieless, and you stay in control of your clients' data.

Made for agencies

Multi-client isolation, per-client roles and client-ready reporting — the workflow real agencies use, not a repurposed single-brand tool.

Our approach to data protection

Under the GDPR, your agency is the data controller for your clients' information and Castessa acts as a data processor. We process data within the European Union, collect only what's needed to deliver the service, and use privacy-friendly, cookieless analytics — so you can offer your clients a tool that respects European privacy standards. privacy policy and terms.

Get in touch

Questions about Castessa, a Scale plan, or data-processing terms for your clients? We'd love to hear from you.

postme@castessa.app