In-App Advertisements for Publishers

January 8, 2021
June 17, 2022
In-App Advertisements for Publishers

In 2020, global mobile ad spending amounted to 276.21 billion U.S. dollars. By the end of 2021, mobile ad spend is expected to reach 341.18 billion, totalling 40% of overall ad expenditure.

For publishers looking to monetize, in-app advertising has become a key strategy in the mobile game.

It is more important than ever for publishers to consider leveraging mobile ads as part of the overall advertising campaign.

In this guide, we’ll take a deep dive into in-app advertising, how it works, and the crucial trends you need to know. We’ll discuss the benefits for publishers of mobile website display advertising versus in-app advertisements and finally the best in-app advertising networks to consider.

Let’s dive in.

What is In-App Advertising and How Does it Work?

In-app advertising is both a marketing and revenue strategy for app developers and brands where advertisers serve ads via their apps for compensation. These in-app advertisements are served using app advertising networks that allow developers and ad publishers or advertisers to work together through programmatic ad buying. Here is how in-app ads work:

  1. The app on the user’s smartphone sends a request to the mobile advertising network to serve an ad.
  2. The ad network takes a multitude of factors into account, including user data, and then uses an algorithm to identify the best and highest-paying ad from multiple advertisers.
  3. The ad then delivered then renders to the mobile app in real time which the user can see on their smartphone.

These ads come in different types and formats to suit the viewable space and developers can choose between various ad types to optimize their app monetization process. These include in-app display ads, native ads, interstitial display ads, rewarded videos and more.

Also Read: 93 Essential In-App Advertising Statistics to Know in 2022

Mobile Websites vs. Mobile Apps


Mobile apps have been shown to captivate their audience, and hold users' attention. And while mobile websites share certain similarities with specific apps, there are some critical differences, particularly regarding digital advertising.

Whereas mobile sites track via cookies, apps (which ask users to opt-in) track via device id, offering developers valuable audience data that is not available via cookies alone. This will be critical to publishers moving forward into a post third-party cookie digital landscape. 

While cookies offer basic user data such as shopping habits and browsing history, Device IDs offer developers information such as geo location data, types of mobile devices, OS, gender, age, and wireless carrier.

Furthermore, their resistance to ad blockers and the high amount of mobile time spent in apps, makes in-app advertising work successfully for mobile publishers across the board.

While overall growth of mobile app advertising  expenditure has taken a hit due to the pandemic, ad placement numbers are gaining traction still significantly high with global app sales revenue crossing the $50 billion threshold this year. App purchases grew with a year-on-year increase of 23% with annual smartphone app downloads forecast to cross $258 billion by 2022.

Providing an exemplary mobile experience has become increasingly important for all brands and businesses looking to build brand awareness,third-party user engagement.

Let’s take a closer look at the benefits of in-app mobile advertising.

What Makes In-App Advertising Better than Mobile Website Advertising?

1. More Monetization Opportunities

On mobile apps, advertisers and app publishers have much more freedom to monetize the app in ways they cannot monetize a mobile website.

For mobile ad publishers, in-app ads have proven to be a successful monetization strategy. These days, smartphone app developers are making money byfor serving ads on their mobile apps. For example, the premier online real estate business, Zillow, publishes ads for allied businesses enabling them to reach targeted users through their app.

2. Users Spend More Time on Apps

According to a Smaato study, mobile users are spending 90% of their time on apps, equivalent to more than three hours a day. This means that when it comes to mobile experiences, apps have taken the driving seat with mobile web being the distant runner-up.

3. More Engaged Audience

Unlike traditional marketing channels, the mobile app audience is by far the most captive and engaged, making them the ideal audience for display advertising, leading to higher interest, click-through rate, and conversions and ultimately, higher ad revenue for app publishers.

4. Higher Chance of Conversion

Research demonstrates that apps are 120% more likely to convert compared to mobile websites. A Criteo report found that users coming from in-app ads view 4.2 times more products per session. Considering that, you may want to think about adding in-app advertising to your arsenal.

5. Accurate In-App Ad Targeting

When a mobile user is browsing websites, advertisers and publishers can only accumulate data about them using cookies which is quite limited. However, when using an application, ad publishers can collect more targeted information through device ID including age, internet provider, gender, operating system, device type, location, and more.

6. More Personalization

In-app-based mobile advertising enables ad publishers to create highly personalized and customized ads that have higher odds of engaging your audience and convincing them to click through. Also, through the app store, developers always get permission from the mobile user to collect their data prior to installation. Ad publishers are also in a better position to identify their audience giving them more control over the ad serving process.

That being said, you have to keep in mind that recent loss of data tracking across apps pushed forward by the latest iteration of iOS 14 is expected to cut down the cost per thousand mille (CPM) making personalized advertising substantially more challenging. This will increase the value of first-party data and immersive ad units significantly.

7. Better Results

According to AppSavvy, in-app ads perform 11.4 times better as compared to banner ads on mobile websites.

8. No Ad Block

If a user has installed an ad blocker, it is likely they won’t see banner ads. That’s not a big concern for in-app advertisers because of the freemium business model which allows them to serve ads to the mobile users who can use the app without paying any price.

Possible Drawbacks of In-App Advertising

As brands and marketers continue to increase their marketing spend on both mobile web and in-app advertising, they also need to consider the drawbacks of in-app advertising.

Without conducting a cost versus benefit analysis, it can be challenging to make your in-app  ad campaign successful. Make sure there is enough time spent on programmatic planning. Some key points you need to keep in mind are as follows:

Highly competitive channel

Since more and more advertisers are now looking to display their ads within apps, it has become an increasingly competitive and expensive marketing platform.

Depends on your business niche

If your target customer is not a savvy smartphone user or doesn’t like to use app content, then mobile app ads may not be the best marketing fit for your brand. You will not get high enough click through rates.

‍Private Marketplace and Programmatic Deals

Customized programmatic deals, like those offered by Publift, ensure in-app advertising campaigns are optimized to deliver the maximum viewable mobile ad impressions to highly specific audiences at the right mobile moment. By offering high-quality inventory, in all the main ad formats, programmatic deals allow publishers on a supply-side platform to partner with advertisers on a demand-side platform to maximize ad revenue for ads in all app categories.

5 Best In-App Advertising Networks

If you are an ad publisher searching for top mobile app networks, here are some of the leading ad networks that you can consider using:

1. Instagram / Facebook

These social media giants are some of the best ad networks to reach your target audience through a robust and programmatic advertising campaign,within which you can include different ad formats.

With their enormous reach, Facebook pulled in a revenue of $17.74 billion in Q1 2020 alone, they have the potential to accumulate hundreds of thousands of impressions and thousands of conversions with an effective in-app marketing strategy.

Moreover, both Instagram and Facebook’s platforms allow you to be flexible when it comes to audience, timing, and advertising budget. Ad publishers can target audiences based on age, location data, relationship status, gender, job role, and likes and dislikes.

2. AdMob

Owned by Google, Admob is the mobile variant of Google AdSense. It is an effective ad network for marketers who are just starting out as it is easy to use and quite intuitive. Marketers can use video, images, text, or interactive media to serve their programmatic ad campaign. They also have the option to choose from formats including interstitial, video, banner, native and reward ads.

3. Smaato

With over 90,000 advertisers, Smaato is a great mobile ad network for those looking to publish ads. Smaato’s large advertiser base means publishers have a high probability of selling ad space. You can also make the most of real-time bidding with SPX, the Smaato Publisher Platform.

4. Unity

If you are targeting gamers, then you can’t go wrong with Unity, which has been especially created to display video ad content to monetize mobile gaming apps. The ad network is compatible with both mobile operating systems including iOS and Android and supports all game engines including Corona, Marmalade, and Adobe Air. Advertisers can also use this one-stop shop network to include in-app shopping which lets gamers search and purchase products without ever leaving the game.

5. InMobi

One of the leading independent mobile ad networks, InMobi is capable of handling both mobile web and apps so you can run different types of advertising campaigns using a single platform. The network supports both iOS and Android and provides ad campaigns in CPI and CPC models. Rich media, interstitial, video, banner, and native are the available ad formats.

In-App Advertising Formats

When it comes to displaying third party mobile ads, you need to ensure you are delivering the best content and user experience by using the right ad format for your target audience.

Popular in-app ad formats you can use include interstitial, rich media, video, rewarded video, native and banner ads.

Here’s a quick guide to the different ad formats available:

  • Interstitial Ads

This ad format consists of full-screen banner ads that appear between different game levels.

In-app advertising formats interstitial ads

  • Rich Media

These mobile in-app ads are served in the banner as well as in pop up formats using HTML, JS, CSS, and image files.

  • Rewarded Video Ads

This ad format, as the name suggests, offers incentives to the gamer by watching video ads.

In-app advertising formats rewarded video ads

  • Video Ads

Native video ads are served in mobile video format and may allow the users to skip in a few seconds if they are not interested. Mobile video ads can be a great tool to engage users.

In-app advertising formats video ads

  • Native Ads

These are video or textual ads that mimic the appearance of editorial content present on the website. They are non-intrusive and blend in with the design.

In-app advertising formats native ads

  • Banner Ads

These are simple and static ads that are either displayed at the top or bottom of the app. They are highly affordable and are supported universally.\

In-app advertising formats banner ads

These types of game ads provide a playable or gamified version of the game for improved demonstrability.

In-app advertising formats playable games

Key Takeaways

Publishers should consider in-app advertising as a key monetization strategy to target the potentially mobile app user segment.

Remember to keep in mind some of the best practices for in-app advertising success:

  • Keep an eye on where your mobile advertising is coming from.
  • Choose full-screen ads for better engagement and banners for higher reach.
  • If you are looking to maximize engagement, consider using video in-app ads.
  • Ensure you are making the most of programmatic deals and private marketplaces.
  • Ensure your targeting and content is optimized to serve engaging ads to your users for better responses.

Grow with us

Boost your ad revenue with our all-in-one solution. Grow your business with a sustainable, long term partnership.