Overview

Countly lets you build an analytics stack that stays inside your own data center or private cloud. The service is built around keeping every event first‑party, so you never rely on third‑party cookies or trackers. It works with any language or platform that can send HTTP requests to its SDKs.

Developers can choose from 10 battle‑tested SDKs that cover iOS, Android, Web, Desktop, and even embedded devices. Each SDK records user events, page views, or custom actions and posts them to Countly via a simple RESTful endpoint. The API also accepts raw JSON events, so you can push data from server logs or custom microservices. Once an event arrives, the platform offers a data‑management layer where you define validation rules, set custom attributes, and apply transforms before the event lands in reporting tables. This step ensures that duplicate or malformed data is filtered out, and that the data model stays consistent across channels.

The analytics layer gives product teams three modes of exploration. First‑party dashboards show key metrics like daily active users, session length, and funnel completions, all rendered as time‑series charts or bar graphs. Advanced analysts can use the query builder to slice data by device, geographic region, or custom tags, and then export the results as CSV or embed them in external BI tools via a secure API. AI‑powered tools can automatically propose new dashboards, read headlines from contexts, or suggest attribute filters, reducing the time needed to surface actionable insights. For marketing or support teams, the platform can trigger in‑app messages or push notifications based on real‑time thresholds, such as a user dropping below a certain engagement score. Smart Variables let you alter UI elements for a particular cohort or traffic source without a new app build.

Customer‑journey features let you design multi‑step flows that react to user actions. You can add surveys triggered after a signup flow, or adapt a feature flag in real time using external data. The system also supports A/B testing of different UI flows or messaging variants, collecting click‑through or conversion metrics automatically. All these engagements are still captured as first‑party data, and you can view them side‑by‑side with core application metrics in the same dashboard.