How to Set Up Push Notifications with OneSignal

In this comprehensive guide, we walk through how to set up push notifications using OneSignal step by step; covering web and mobile scenarios, targeting, automation, and a solid comparison between push notifications and in-app messaging from Omtera’s perspective.
How to Set Up Push Notifications with OneSignal

Digital products, mobile applications, and SaaS platforms are no longer competing only on features; the quality of communication with users has become one of the most decisive factors for sustainable growth. It is no longer enough to simply bring users to your product—brands must engage them with the right message, at the right moment, and in the right context. Push notifications directly address this need, yet when poorly designed, they can quickly become ignored or even perceived as noise.

OneSignal enables teams to manage channels such as push notifications and in-app messaging from a single, unified platform—making communication more controlled, measurable, and scalable. Omtera complements this technology with strategic and technical expertise, helping early-stage teams build strong foundations while enabling mature organizations to sustainably increase engagement performance.

Why Push Notifications Are Still Critical

One of the biggest challenges faced by digital products, mobile apps, and SaaS platforms today is communicating with users at the right time and with the right message. As email channels become increasingly saturated and user attention spans continue to shrink, marketing and product teams need communication channels that are faster, more personalized, and easier to measure.

Push notifications stand out as one of the most powerful tools for re-engaging users, driving action, and increasing retention. However, real value does not come from simply “sending notifications,” but from proper setup, accurate targeting, and a well-defined strategy.

This is exactly where OneSignal provides a flexible and powerful solution for both beginners and advanced teams. Omtera completes the picture by ensuring this potential is implemented correctly through strategic guidance and technical execution.

What Is OneSignal? An Overview of the Push Notification Ecosystem

OneSignal is a comprehensive customer messaging platform that brings together web push, mobile push, in-app messaging, email, and SMS under a single system. It allows fast onboarding for teams just getting started while offering advanced segmentation, automation, and analytics for more mature product organizations.

While this guide primarily focuses on push notification setup, later sections will also provide a detailed comparison between push notifications and in-app messaging—helping you understand which channel to use in different scenarios.

Step-by-Step OneSignal Push Notification Setup

1. Creating a OneSignal Account and Choosing a Platform

The setup process starts with creating an account on OneSignal. Next, you must select the platform where you want to send push notifications:

  • Web (Chrome, Safari, Firefox, etc.)
  • iOS (APNs)
  • Android (Firebase Cloud Messaging – FCM)

This decision directly impacts the technical setup steps and permission configurations. At this stage, Omtera helps analyze your product architecture to determine which setup approach is healthiest and most scalable for your use case.

2. SDK and Technical Integration

The next step is integrating the OneSignal SDK into your website or mobile application.

  • For web push: the JavaScript SDK is added
  • For mobile apps: iOS and Android SDKs are integrated into native projects

This phase is critical for many teams. Incorrect SDK configuration can lead to missing data or failed notifications. Omtera goes beyond basic integration by correctly structuring event tracking, user identification, and lifecycle scenarios from the start.

3. Designing the Permission Strategy

The success of push notifications largely depends on how and when permissions are requested. Asking for permission immediately when the app opens often results in low opt-in rates.

OneSignal allows you to customize both the timing and messaging of permission prompts, such as:

  • After a user completes a meaningful action
  • Once the value proposition is clearly communicated
  • Using a combination of soft prompts and native permission dialogs

Omtera’s contribution here goes beyond technical configuration, focusing on UX and behavioral data to design the most effective permission strategy.

4. Creating the First Push Notification

Once permissions are granted, you are ready to send your first push notification. In the OneSignal dashboard, you can configure:

  • Title and message content
  • Image
  • URL or deep link
  • Delivery timing (immediate or scheduled)

One of the most common mistakes at this stage is sending the same message to all users without segmentation.

5. Segmentation and Targeting

OneSignal’s strongest capabilities lie in its advanced segmentation options. Push notifications can be targeted based on:

  • User behavior (event-based)
  • Location
  • Device type
  • User attributes

Omtera ensures these segments are defined not only from a technical standpoint but also in alignment with business objectives, transforming push notifications from a spam risk into a value-driven engagement channel.

Push Notifications vs In-App Messaging: A Solid Comparison

What Is a Push Notification?

Push notifications are messages delivered to users’ devices even when they are not actively using your app or website. Their primary goal is to bring users back and encourage action.

Advantages:

  • High reach
  • Immediate engagement
  • Strong re-engagement potential

Limitations:

  • Risk of spam perception if overused
  • Requires user permission

What Is In-App Messaging?

In-app messaging refers to messages displayed while users are actively using the application. These are commonly used for onboarding, education, and feature announcements.

Advantages:

  • Contextual communication
  • Lower perceived interruption
  • Enhances in-product experience

Limitations:

  • No reach when users are inactive
  • Limited ability to drive re-engagement

Common Mistakes and Omtera’s Approach

  • Sending the same push notification to all users
  • Poorly timed permission requests
  • Ignoring measurement and A/B testing
  • Treating push notifications and in-app messaging as separate channels

Omtera approaches OneSignal implementation not merely as a technical integration, but as part of a long-term engagement and growth strategy.

Push notifications, when implemented correctly and supported by the right strategy, can have a direct and measurable impact on user engagement and product success. While OneSignal makes this power accessible, Omtera ensures it translates into tangible business outcomes.

To get maximum value from OneSignal and build a strong push notification strategy from the ground up, get in touch with Omtera today.

FAQ (Frequently Asked Questions)

Is setting up push notifications with OneSignal difficult?
No. The basic setup is fast, but real value comes from proper strategy and configuration.

Which is more effective: push notifications or in-app messaging?
It depends entirely on the use case. The best results come from using both channels together in a balanced way.

Is OneSignal suitable for small teams?
Yes. It is designed for both early-stage teams and scaling organizations.

How does Omtera support OneSignal implementations?
Omtera provides end-to-end support across strategy, technical setup, segmentation, automation, and continuous optimization.

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