Countly is a product analytics and customer engagement platform built around a strong principle: data ownership. While most analytics solutions send your behavioral data to a third party, Countly is deployed on your own infrastructure so you retain full control over what your applications collect — "understanding users on every device and every touchpoint" — without compromising on privacy.

On the analytics side, Countly covers the entire product journey: custom events, sessions, conversion funnels, retention analysis, user profiles, cohort segmentation, and customizable dashboards. The platform goes further with crash reporting, error detection modules, and data governance tools.

Countly doesn't just observe: its engagement module allows you to trigger in-app messages, automated push notifications, A/B tests, surveys, and NPS directly within the application. This is what distinguishes it from a passive analytics tool: it closes the loop between measurement and action.

Technically, Countly relies on Node.js and MongoDB, with an extensible plugin-based architecture. The Community edition is open-source under the AGPL-3.0 license and fully self-hostable. Official SDKs cover mobile, web, and desktop. DINAO deploys this edition in containers on French soil — the ideal alternative for a product team seeking sovereignty and GDPR compliance.