# Cohort analysis

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Cohort analysis overview
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This report shows the dynamics of quality metrics for different cohorts based on install date.&#x20;

There are two pages available:

1. Custom cohorts
2. Weekly cohorts

The **Custom cohorts** report presents quality metrics data grouped by 3 cohorts.&#x20;

<figure><img src="https://2105883905-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LnGcP_ZeRJ1ipj9O8dF%2Fuploads%2FJs3lPZcahrd31KCy2Xvk%2Fimage.png?alt=media&#x26;token=bb3a7b0c-33df-4bb9-adeb-2aa787e7ce1f" alt=""><figcaption></figcaption></figure>

Default cohorts are calculated based on install dates only, but additional filters can also be used.

If you have data for the period of more than 3 days and less than the period of 28 days, the following cohorts are shown:

* Cohort 1 – users who installed the app yesterday
* Cohort 2 – users who installed the app 2 days ago
* Cohort 3 – users who installed the app 3 days ago

If you have data for the period less than 3 days, you will need to wait for cohorts to appear.

It is also possible to create custom cohorts that are based on a certain period of install date. Also, you can add available filters to them. Use the "+ Cohort" button to create a custom cohort.

There are 3 main widgets on this page:

* Table
* Retention line chart
* Cumulative ARPU line chart

With the table widget you can select and track up to 5 quality metrics. The following metrics are shown by default:

* Tutorial Conversion
* Retention Day 1
* Retention Day 7
* Paying Conversion
* Cumulative ARPU for 7 days

To build the report, click the “View result” button. If you would like to build the report after changing settings, use the “Refresh” button.

<figure><img src="https://2105883905-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LnGcP_ZeRJ1ipj9O8dF%2Fuploads%2FElTYOL9FFo9spWiioNOG%2Fimage.png?alt=media&#x26;token=fe441dbe-09f7-4828-9ead-d28c928375fc" alt=""><figcaption></figcaption></figure>

The **Weekly cohorts** page shows the audience and gross structure grouped by the week when the app was installed. It is possible to select the type of data display –  in absolute or percentage values.

<figure><img src="https://2105883905-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LnGcP_ZeRJ1ipj9O8dF%2Fuploads%2FUYFVllskca3Lhtzahfrf%2Fimage.png?alt=media&#x26;token=cf623d95-a209-48ad-836f-624b3b4ba618" alt=""><figcaption></figcaption></figure>