# Cohort Introduction

## What is a Cohort?

A Cohort is a group of users who share common characteristics or experiences during a specific period.

Examples include a group of users who share a common characteristic such as using an iPhone or the latest version of a mobile app, or a group of users who have visited the app and completed a purchase within the last 30 days.

Hackle supports both Dynamic Cohorts, where the list is automatically updated using event/property conditions, and Static Cohorts, which are fixed user lists.

![](/files/0EvVBSwPApm1TyxF7dIl)

## How can you use Cohorts?

* You can create a Cohort by entering conditions directly.
  * You can view (export) the list of users included in a Cohort.
  * You can perform data analysis at the Cohort level.

![Create a Cohort with desired conditions](/files/Frwx8qSCuVBOt7xuelFb)

![Data analysis at the Cohort level](/files/lWgMHvLLhGqorBCS4fFL)

* You can save users meeting specific conditions from a data analytics chart as a Cohort.

![Save a Cohort with specific conditions from an analytics chart](/files/As6dM9EzZX5VTYNdfDll)

* You can run A/B Tests, Feature Flags, Remote Config, In-App Messages, and Push Messages targeting a specific Cohort.

![Send a Push Message to a specific Cohort](/files/oT3TV34rMwvd22f5BIL4)

## How do you use Cohorts?

Select the 'Cohort' menu in the left navigation of the Dashboard to create a new Cohort, view and edit the conditions of an existing Cohort, and export the user list. You can find instructions for creating Cohorts from data analytics charts in the [Create Cohort](/en/cohort/create.md) documentation.

![](/files/fOEMUusTD75lCKjtWT5w)

{% hint style="info" %}
Learn more about Cohort analysis on the Hackle blog!

1. What is Cohort Analysis? ([Read more 👉](https://hackle.io/ko/post/cohort-1/?utm_source=blog))
2. Building a Revenue Strategy with Cohort Analysis (1) | A Data-driven Approach to Achieving Growth Goals ([Read more 👉](https://hackle.io/ko/post/cohort-2/?utm_source=blog) )
3. Building a Revenue Strategy with Cohort Analysis (2) | A Practical Guide to Validating Key Targets and Developing Strategies ([Read more 👉](https://hackle.io/ko/post/cohort-3/?utm_source=blog))
4. Building a Revenue Strategy with Cohort Analysis (3) | Strategies for Planning and Executing Target-specific Campaigns ([Read more 👉](https://hackle.io/ko/post/cohort-4/?utm_source=blog))
   {% endhint %}


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