> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-rn-guide-message-privately.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Overview of Overview in CometChat.

Notifications play a crucial role in alerting users to activity within conversations, such as new messages, replies, reactions, and more. CometChat facilitates user engagement through various notification methods, including:

### Push Notifications

Deliver instant updates and improve user engagement. CometChat has the following offerings.

* [Push Notifications](/notifications/push-overview)
* [Push Notifications extension (Legacy)](/notifications/push-notifications-extension-legacy)

### Email Notifications

Dispatch updates at intervals to re-engage users with extended absence using Emails.

* [Email Notifications](/notifications/email-overview)
* [Email Notifications extension (Legacy)](/notifications/email-notifications-extension-legacy).

### SMS Notifications

Dispatch updates at intervals to re-engage users with extended absence using SMS.

* [SMS Notifications](/notifications/sms-overview)
* [SMS Notifications extension (Legacy)](/notifications/sms-notifications-extension-legacy).