Push notification strategy

On iOS, the user must accept a system prompt to receive notifications. You only get one chance: if they decline, the process to re-enable is cumbersome (system settings). On Android, notifications are enabled by default until Android 13, where explicit permission is also required.

Best practice is not to request permission on the first app launch. Wait until the user has experienced value: after a first purchase, upon completing onboarding, or when a feature logically requires notifications. An explanatory "pre-prompt" before the system dialog increases acceptance rates by 30–50%.

Sending the same notification to your entire user base is the fastest way to lose relevance. Segmentation lets you group users by behaviour (active, inactive, buyers), preferences, geographic location or lifecycle stage. The more granular the segmentation, the more relevant the message.

Personalisation goes beyond including the user’s name. It means adapting content, timing and frequency to individual context. An e-commerce app can notify a discount on a product the user has viewed three times; a fitness app can send a workout reminder at the user’s usual time.

Send time directly impacts open rates. Sending at 3 AM when the user is asleep is not just ineffective — it generates irritation. Best practice is to use Intelligent Delivery, a feature that platforms like OneSignal and Braze offer to send at the optimal time for each user based on their interaction history.

With frequency, less is more. Localytics research shows that 2–5 notifications per week is the optimal range for most apps. Exceeding it significantly increases uninstalls. Ideally, let users configure their preferred frequency in the app’s settings.

A push notification has seconds to capture attention. The title should be clear and concise (50 visible characters max before truncation). The body expands the information but also truncates quickly, especially on Android. Rich notifications with images increase open rates by up to 56%.

Tone should be consistent with the brand but adapted to the channel’s urgent context. Using emojis sparingly can increase visibility, but overuse reduces credibility. Actionable notifications (with quick reply buttons) improve engagement by allowing interaction without opening the app.

Not all notifications are equal. Transactional ones (order confirmation, shipping status, security) have the highest open rates because users expect to receive them. Promotional ones (offers, discounts) perform well when segmented. Engagement notifications (reminders, new content) require more care to avoid being invasive.

Win-back notifications are critical for reducing churn. They target users who haven’t opened the app in a while, with a clear and personalised incentive. Social proof notifications ("Maria just purchased…") work in marketplace contexts but generate backlash if perceived as manipulative.

Key metrics for evaluating a push strategy are: opt-in rate (percentage of users who accept notifications), delivery rate, open rate, CTR (click-through rate) and, most importantly, the impact on business metrics like retention, revenue per user and churn rate.

Implement systematic A/B testing on titles, content, timing and segments. Platforms like Firebase Cloud Messaging, OneSignal and Braze offer built-in experimentation tools. Also monitor negative metrics: unsubscribe rate and app uninstalls attributed to notifications.

The push notification platform ecosystem is broad. Firebase Cloud Messaging (FCM) is Google’s free transport layer. OneSignal offers a generous free tier and is ideal for small teams. Braze and Airship are enterprise solutions with advanced segmentation, automation and analytics capabilities.

For a robust implementation, combine FCM/APNs as the transport layer with an orchestration platform that handles segmentation, intelligent timing and analytics. Integrating with your CRM and analytics tools lets you measure the real impact on user lifecycle.