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Best practices for driving engagement with iOS app notification badges

Peter Centofante
Director of Product Strategy
September 6, 2017

Push notifications on iOS are incredibly effective at driving mobile engagement, but there’s another notification tool that tends to be unfairly considered an afterthought: badges.

No, we’re not talking about those in-app gamification badges you earned because you “worked out 3 days in a row” or (OK, more realistically) “checked into 5 hot dog stands.”

We’re here today to breathe some life into a much more overlooked kind of badge: the little red circle with a number inside it that overlays the top right corner of app icons on iOS.

icon push-notifications

Plenty of attention has been paid to push notification strategy for user engagement. But those little red badges can be used even without push and, if combined with an effective content strategy, are an undervalued engagement opportunity.

(Note: Android O has a different approach to badges called “dots” which have their own implications and rules, so this article is primarily focused on iOS.)

Badges as triggers

A badge is a subtle nudge that something is waiting for you inside the app.

As revealed by social apps, just the sight of these things can trigger dopamine releases due to social rewards designed to hook us (for example, likes, comments, or direct messages).

Badges can make an app feel dynamic and active, encouraging impulse engagement. Duolingo reported an immediate 6% increase of daily active users (DAUs) simply from implementing a basic badge strategy.

Badges don’t have to be tied to push notifications

On iOS, badges are often tied to push notifications, but they don’t have to be. There are three user-facing components to an iOS notification that can be used in any combination:

iOS notifications banner

So, you may have a badge without a push, a push without a badge, or a push, badge, and sound working together at the same time. The right combinations, along with other features like Apple’s rich push notifications, can be quite effective.

Keep in mind: users can turn off badges, or in some cases, define how badges are displayed, so it’s important to carefully craft your badge strategy.

Badge Best Practices

1. Ensure the badge number is clearly tied to something inside the app.

A badge number showing up can create excitement and drive engagement, but it’s vital for the app’s UX to pick up where the badge leaves off to reveal what’s new.

Use clear design cues to ensure the connection between badge and content is easily made. Consider implementing an “inbox” or “notifications center” section of your app that’s tied to a badge system.

2. Make it easy to clear.

Not only should it be easy to understand why the badge is there, but it should be equally easy to clear out the badge count. This is especially important if there is a high volume or if the badge events are relatively low-impact.

For example, Facebook and Pinterest both clear out the full badge count by just visiting the notification center. (Just Imagine if you had to tap through one by one!)

3. Develop your content strategy with badging and regular engagement in mind.

Think about using push notifications when appropriate, but using badges to trickle out other content for regular engagement.

Time your content releases to trigger badges in line with your engagement goals—for example, if you are after DAU’s, plan content releases with badges on a daily basis (like LinkedIn’s “daily rundown,” “jobs you may be interested in,” and other scheduled activity alerts).

4. Find an effective cadence, and don’t overdo it.

Keep in mind that users can turn off badges completely for your app. Just like push notifications, abusing badges may lead to the user turning them off or worse, deleting the app.

Too many notifications clutter up the Notification Center, which doesn’t do anyone any favors. Each app is different – consider running tests to measure effectiveness and find your cadence.

5. Focus on meaningful badges that help the user.

Providing a clear benefit to acting on a badge helps the user form psychological connections with your app, which keeps people coming back.

Badge Examples

Lastly, let’s look at some apps that are using badges effectively… and not so effectively.


Like many modern social apps, LinkedIn has its own “notification center” in-app with notable recent activity. LinkedIn badges are always clearly tied to something useful inside the app; i.e., a badge reading “2” corresponds to 2 items awaiting viewing in your notification center.


Major events such as connection requests send a push and badge notification combination because they may warrant immediate action, but more minor events such as your “daily rundown” or someone viewing your profile only triggers a badge.

This tiered approach mitigates push fatigue, but can also increase engagement—as you’re swiping through, you see something is waiting for you. LinkedIn has developed a content strategy around having at least one badge event a day, encouraging daily engagement.


The app has an “inbox” that contains updates on your rewards account, new product offerings, even music that’s available from Starbucks. Most of these offers don’t warrant a push notification, but they’re heralded by a badge instead, which leads the user to find the benefit waiting in the inbox.


Apple Mail

No one wants to get a push notification for each email, but a quick glance at a count of new emails in a badge may be helpful. The Mail app helpfully allows you to customize the count you see: all new emails, just emails from your VIPs, or specific threads you have subscribed to.


Words With Friends

A less than desirable example is the popular Words With Friends game. Each push notification also generates a badge that can sometimes confuse the user experience.

Some WWF push notification/badge combinations are useful – when there is a move from a friend awaiting your response, for example.

Others like “word of the day” push notifications also increase the badge count with nothing corresponding inside the app. Having a badge count of 2 with only 1 in-app action can be a needlessly frustrating user experience.


Apple’s HIG provides detailed guidelines for executing notifications, including protecting the purpose of badges (i.e., don’t try to display non-notification info within badge counts like current temperature or stock prices), and the importance of keeping badges constantly and immediately up to date.

Need help incorporating badges into your app engagement strategy? Contact us!

Peter Centofante
Director of Product Strategy

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