> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# thirty-day New User Retention Report

> Overview of the PlayFab Thirty-Day New User Retention report, showing the percentage of each new-player cohort that returns to your game across 30 days.

The Thirty Day New User Retention report tracks the percentage of new user cohorts who return to the game on subsequent days.

A Cohort of players is defined by grouping newly registered players on a given day (**Day 0**) and their retention is tracked over a 30-day period.

Cohort size is determined by the number of players within it.

The example report shown below, was generated on **2/5/2018**. On **1/6/2018**, **39,132** new players created accounts in the example title.

![Thirty-day New User Retention Report Table](https://mintcdn.com/microsoft-4404708b/MjJ0-cTsb1bpaMcX/images/playfab/data-analytics/learn-data/reports/tutorials/thirty-day-new-user-retention-report-table.png?fit=max\&auto=format\&n=MjJ0-cTsb1bpaMcX\&q=85\&s=c73152a1102c63e05571e23cbfe421a4)

Since **Day 0** is an initiation date for a new Cohort, this column always has **100%** retention rate.

Then **33.84%** of those players logged in again the *next day*, **24.64%** in *two days* later, and so on. **10.84%** of the Cohort returned on the *30th day*, which corresponds to **2/5/2018**.

For additional details, see [Metrics and Terminology](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/metrics-and-terminology.md).

## Populating the report

To populate this report, you must register a player and then have them log in for several days in a row at least once.

This, however, will produce trivial results, (with **100%** retention for each day).

Throwing more players into the process and skipping some days will produce more interesting results.

The following API calls may be used to log in:

* [LoginWithAndroidDeviceID](xref:titleid.playfabapi.com.client.authentication.loginwithandroiddeviceid)
* [LoginWithCustomID](xref:titleid.playfabapi.com.client.authentication.loginwithcustomid)
* [LoginWithEmailAddress](xref:titleid.playfabapi.com.client.authentication.loginwithemailaddress)
* [LoginWithFacebook](xref:titleid.playfabapi.com.client.authentication.loginwithfacebook)
* [LoginWithGameCenter](xref:titleid.playfabapi.com.client.authentication.loginwithgamecenter)
* [LoginWithGoogleAccount](xref:titleid.playfabapi.com.client.authentication.loginwithgoogleaccount)
* [LoginWithIOSDeviceID](xref:titleid.playfabapi.com.client.authentication.loginwithiosdeviceid)
* [LoginWithKongregate](xref:titleid.playfabapi.com.client.authentication.loginwithkongregate)
* [LoginWithPlayFab](xref:titleid.playfabapi.com.client.authentication.loginwithplayfab)
* [LoginWithSteam](xref:titleid.playfabapi.com.client.authentication.loginwithsteam)
* [LoginWithTwitch](xref:titleid.playfabapi.com.client.authentication.loginwithtwitch)
* `LoginWithWindowsHello`\<!-- [LoginWithWindowsHello](xref:titleid.playfabapi.com.client.authentication.loginwithwindowshello) -->

To register a player you may use the following API calls:

* [RegisterPlayFabUser](xref:titleid.playfabapi.com.client.authentication.registerplayfabuser)
* `RegisterWithWindowsHello`\<!-- [RegisterWithWindowsHello](xref:titleid.playfabapi.com.client.authentication.registerwithwindowshello) -->

You may also use the following API calls to register and log in simultaneously if the `CreateAccount` flag is set:

* [LoginWithAndroidDeviceID](xref:titleid.playfabapi.com.client.authentication.loginwithandroiddeviceid)
* [LoginWithCustomID](xref:titleid.playfabapi.com.client.authentication.loginwithcustomid)
* [LoginWithFacebook](xref:titleid.playfabapi.com.client.authentication.loginwithfacebook)
* [LoginWithGameCenter](xref:titleid.playfabapi.com.client.authentication.loginwithgamecenter)
* [LoginWithGoogleAccount](xref:titleid.playfabapi.com.client.authentication.loginwithgoogleaccount)
* [LoginWithIOSDeviceID](xref:titleid.playfabapi.com.client.authentication.loginwithiosdeviceid)
* [LoginWithKongregate](xref:titleid.playfabapi.com.client.authentication.loginwithkongregate)
* [LoginWithSteam](xref:titleid.playfabapi.com.client.authentication.loginwithsteam)
* [LoginWithTwitch](xref:titleid.playfabapi.com.client.authentication.loginwithtwitch)


## Related topics

- [Reports quickstart](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/quickstart.md)
- [Metrics and Terminology](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/metrics-and-terminology.md)
- [thirty-day Retention Report](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/thirty-day-retention-report.md)
- [Thirty-day New User Conversion Report](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/thirty-day-new-user-conversion-report.md)
- [Daily, Monthly, and Rolling 30-Day Overview and Totals Reports](https://docs.xbox.com/services/playfab/data-analytics/learn-data/reports/daily-monthly-and-rolling-30-day-overview-and-totals-reports.md)