Messaging channels are distinct communication methods you can use to connect with your users. Each channel has unique advantages and setup requirements depending on your platform and goals. Use one or combine several to build a seamless, multi-channel experience:

Timely, alert-style messages that appear on a user’s device—even when the app or site isn’t open.

Push Notifications

​
Before You Begin

Some setup tasks may require developer access to push, email, or SMS credentials.

To invite collaborators to your OneSignal apps, visit the Manage Team Members page.

​
Channel Setup Overview

Mobile Push Setup

Steps to set up push notifications for your mobile app.

Web Push Setup

Steps to set up push notifications for your website.

Email Setup

Send marketing and transactional emails with OneSignal.

In-App Setup

Display rich messages directly within your mobile app.

SMS Setup

Send targeted SMS messages directly to users’ phones.

Live Activities Setup

Provide real-time updates on iOS using Live Activities.

​
Technical Requirements by Channel

While OneSignal is built for ease of use, some setup tasks may require developer support depending on your integration. Use the chart below for a quick comparison:

ChannelTechnical ComplexityDeveloper Required?Setup Time
Web PushModerateYes15–45 min
Mobile PushHighYes30–60 min
EmailLowOptional15–60 min
SMSLowOptional15–60 min
In-App MessagesHighYes30–45 min
Live ActivitiesHighYes45–60 min

​
Best Practices

  • Start with a single channel (like Push or Email) before expanding.
  • Use separate OneSignal apps for testing, staging, and production environments.
  • Always test your messages before launching campaigns.
  • Combine multiple channels in one OneSignal app to leverage Journeys automation.