Imagine a push notification appearing right on your customers' lock screens—without them even having to open the app! This makes it one of the most direct channels you have.
A relevant message is opened at exactly the right moment to bring customers back to your store.
This article tells you everything you need to know about the art of push notifications: You'll learn when they're truly effective, how to manage timing and frequency properly, and which examples work in practice.
What Push Notifications Are and Why They're So Effective
Push Notifications They appear directly on your customers' smartphones, even if your app isn't open. Unlike emails, they don't end up in the inbox—they appear on the lock screen.
Categorization: Push, In-App, Email, SMS
Push notifications appear even when the app is closed and are ideal for time-sensitive, personalized messages. In-app messages, on the other hand, appear only when the app is open and are therefore well-suited for onboarding or for communicating feature updates. Emails are ideal for storytelling and providing context. Text messages remain the exception for actual service requests. Read more in this article Effective Customer Retention Through the Use of CRM.
When Push Notifications Really Work: 5 Areas of Application
- Transactional & Service: Order shipped, delivery tomorrow, points credited. Almost universally desired.
- Loyalty & Points Balance: Updates on progress and levels. „Just 1 stamp left until coffee“ uses the progress effect.
- Promotions & Exclusive Benefits: For Loyalty Club members only, in measured doses and by segment.
- Reactivating Inactive Customers: A three-step approach with increasing incentives, spaced 2 to 3 weeks apart.
- Birthdays & Personal Occasions: A special touch, sent one or two days before the event.
Timing: When to Send Push Notifications
Even the best offer is of little use if it's displayed at the wrong time. As a rough starting point, you can use this heuristic as a guide and then refine it with your own data.
| Industry | Practical Time Slots | Best to avoid |
|---|---|---|
| Dining / Lunch | Tue–Fri, 10:30–11:30 | Late in the evening |
| Café / Bakery | Mon–Sat, 6:30–9:00 a.m. and 2:00–4:00 p.m. | After work |
| Retail | Thu–Sat, 10:00 a.m.–12:00 p.m. and 5:00 p.m.–7:00 p.m. | Sunday morning |
| Hair Salon / Beauty Salon | Tue & Thu, 5:00–7:00 p.m. | Monday |
| Gym | Mon–Fri, 4:00 p.m.–7:00 p.m. | Practice Times |
| Pharmacy | Mon–Fri, 9:00 a.m.–11:00 a.m. | After 7 p.m. |
Absolute no-gos: before 7 a.m. (except for service announcements), after 9 p.m., during major events, and multiple push notifications within a few hours.
Frequency: How often is too often?
As long as they are relevant, transactional messages are not included in the perceived message frequency. For marketing and loyalty programs, two to six messages per month is considered a good starting point; for reactivation, three messages over a period of six to eight weeks is recommended.
Segmentation: The Real Superpower
If you send the same messages to everyone, you’re missing out on the biggest opportunity. You can almost always create specific segments: new customers within the last 30 days, active regular customers, inactive customers for more than 60 days, high-value customers, and customers with birthdays in the next seven days. In a CRM Once such segments are established, they can be continuously refined.
Text & Layout: Your Checklist for Push Notifications
- Title: 30 to 40 characters, immediately understandable.
- Body: 90 to 120 characters, fully readable without clicking „Show more.“.
- A clear call to action: Always start with a verb.
- Personalization: First name, if available.
- Emojis: Use sparingly; no more than one per message.
Measure and Optimize: 5 Key Metrics
| Key figure | What it shows | Guideline |
|---|---|---|
| Delivery Rate | How many devices the message reaches | > 95 % |
| Open Rate | How many people open the app via the push notification | 2–8 % Marketing, 10–30 % transactional |
| Conversion Rate | How many perform the desired action | Depending on the campaign |
| Opt-out rate | Percentage that disables pushes | < 1 % per campaign |
| Frequency Response Curve | How Open Rates Respond to Increasing Frequency | should not bend |
Conclusion
Push notifications are one of the most direct channels for customer engagement—and that’s exactly why they’re also one of the most delicate. By linking them to specific triggers, segmenting your audience effectively, and paying attention to timing and frequency, you can build a channel that customers will actively appreciate.
Start small on purpose. Two to three well-thought-out push notifications per month and a clear segmentation strategy are more effective than ten generic messages.
Frequently Asked Questions
How many push notifications per month are reasonable?
For most small and medium-sized businesses, the starting point is two to four marketing campaigns per month, plus transactional messages as needed. If you segment your audience effectively, you can increase this to five to six after a few months without driving up the opt-out rate. More important than the absolute number is ensuring that every message offers clear value. If in doubt, it’s better to hold back—the cost of sending too many messages is higher than that of sending too few.
Push Notifications vs. Email vs. Text Messages: Which Channel Should You Use and When?
Push notifications are best suited for short, timely updates such as reminders and score updates. Email is better suited for content with more context and storytelling. SMS shines when it comes to highly time-sensitive service messages, but it’s more expensive. The ideal approach is a combination: push notifications as the primary channel, email for more in-depth information, and SMS only in a service context.
What is the difference between a push notification and an in-app message?
A push notification appears on the lock screen—even when the app is closed—and actively brings users back. An in-app notification appears only when the app is open and is best suited for new features or onboarding. Both formats complement each other: Push notifications bring users back, while in-app notifications guide them to where they already are.
How can I get more opt-ins for push notifications?
The key is the timing of the permission request. If you ask for permission right when the app is first opened, you’ll often get a “no.” A better approach: first show what the app can do, and then ask for permission once the benefit is obvious—for example, after the first score update. A brief explanation of exactly what users will get significantly increases the likelihood of consent.
How should I respond to a high opt-out rate?
A rising opt-out rate is an early warning sign. Take a look at your last three to five messages: Were they relevant? Was the frequency too high? A common cause is that several generic messages were sent in quick succession. First, reduce the frequency and improve your segmentation before sending again.
Are push notifications GDPR-compliant?
Push notifications require the user’s active consent the first time they are sent. Things get tricky when you use customer data for segmentation; in this case, you need a solid legal basis and clear information in the privacy policy. In the context of a loyalty program, this is usually easy to implement, but should be reviewed if in doubt.
How much does it cost to send push notifications?
Push notifications alone are generally cost-neutral; unlike text messages, they do not incur telecommunications charges. Costs tend to arise on the platform side and from the effort involved in content creation and monitoring. For those who already use a customer loyalty app, this channel is usually included at no additional cost.
