{"id":50126,"date":"2025-07-11T15:26:32","date_gmt":"2025-07-11T15:26:32","guid":{"rendered":"https:\/\/adjoe.io\/?post_type=glossary&#038;p=50126"},"modified":"2026-02-12T16:00:48","modified_gmt":"2026-02-12T16:00:48","slug":"in-app-bidding","status":"publish","type":"glossary","link":"https:\/\/adjoe.io\/zh-tw\/glossary\/in-app-bidding\/","title":{"rendered":"In-App Bidding"},"content":{"rendered":"\n<div class=\"glossary-description\">\n\t\t<div class=\"glossary-description__wrapper\">\n              <h1 class=\"glossary-description__title\">\n          What Is In-App Bidding?\n        <\/h1>\n      \t\t\t<div class=\"glossary-description__icon\"><\/div>\n\t\t\t<div class=\"glossary-description__text\">\n\t\t\t\tIn-app bidding \u2013 also known as in-app header bidding or mobile header bidding \u2013 is a real-time programmatic method of buying and selling ad inventory. This form of bidding allows multiple advertisers or demand sources  to bid on the same inventory simultaneously, and the highest bid wins within milliseconds. \n\t\t\t<\/div>\n\t\t<\/div>\n<\/div>\n\n\n\n<div class=\"glossary-takeaways\">\n\t<div class=\"container\">\n\t\t<div class=\"glossary-takeaways__wrapper\">\n\t\t\t<div class=\"glossary-takeaways__title\">\n\t\t\t\tKey Takeaways\n\t\t\t<\/div>\n\t\t\t<div class=\"glossary-takeaways__text\">\n\t\t\t\t<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">In-app bidding is based on true CPMs as opposed to historical CPMs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The highest bid wins in this form of buying and selling ad inventory<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">In-app bidding is seen as fairer, more transparent, more lucrative, and more efficient than waterfall bidding<\/span><\/li>\n<\/ul>\n\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How Does In-App Bidding Work?<\/h2>\n\n\n\n<div style=\"height:14px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>In-app bidding is possible when a publisher integrates the <a href=\"https:\/\/adjoe.io\/glossary\/software-development-kit-sdk\/\" target=\"_blank\" rel=\"noreferrer noopener\">software development kit<\/a> (SDK) provided by an in-app bidding platform in their mobile app. The SDK facilitates communication between the bidding platform and demand sources and enables the auction process to take place within the publisher\u2019s app.&nbsp;&nbsp;<\/p>\n\n\n\n<p>Once a mobile header bidding solution has been integrated into the app, it is ready to send ad requests and receive bid requests from various demand sources, including <a href=\"https:\/\/adjoe.io\/glossary\/mobile-ad-networks\/\" target=\"_blank\" rel=\"noreferrer noopener\">ad networks<\/a>, DSPs, and ad exchanges.&nbsp;<\/p>\n\n\n\n<p>These ad requests have information about the ad placement, such as ad format and audience. The demand source submitting the highest bid \u2013 the highest <a href=\"https:\/\/adjoe.io\/glossary\/cost-per-mille-cpm\/\" target=\"_blank\" rel=\"noreferrer noopener\">CPM<\/a> \u2013 wins the ad impression.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"707\" height=\"1024\" src=\"https:\/\/adjoe.io\/app\/uploads\/2023\/07\/how-in-app-bidding-works-707x1024.png\" alt=\"diagram showing how in-app header bidding works\" class=\"wp-image-85566\" style=\"width:710px\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works-707x1024.png 707w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works-207x300.png 207w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works-768x1113.png 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works-1060x1536.png 1060w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works-1413x2048.png 1413w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-bidding-works.png 1875w\" sizes=\"auto, (max-width: 707px) 100vw, 707px\" \/><\/figure>\n\n\n\n<p>As in-app bidding starts to gain more traction in the <a href=\"https:\/\/adjoe.io\/blog\/programmatic-advertising\/\" target=\"_blank\" rel=\"noreferrer noopener\">programmatic advertising space<\/a>, the next step is to boost competition between demand sources and diversify ad formats, so that the technology constantly improves.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Benefits of In-App Bidding?<\/h2>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Most ad mediation platforms by default comprise a mix of in-app bidding and waterfall mediation. App publishers are, however, moving away from <a href=\"https:\/\/adjoe.io\/glossary\/waterfall-bidding-advertising\/\" target=\"_blank\" rel=\"noreferrer noopener\">waterfall bidding <\/a>solutions, which they have prioritized over mobile heading bidding for the past years.&nbsp;<\/p>\n\n\n\n<p>This transition to in-app bidding has possibly been slow due to some networks only being available in waterfalls and general industry hesitancy to test performance over longer periods when removing waterfall mediation. Some monetization managers may also feel as though they have greater control while maintaining manual waterfall placements.<br><br>Waterfall mediation is, however, based on historical data, rather than real-time data and is therefore now more commonly regarded as flawed. Publishers are now coming round to the following benefits that in-app bidding offers:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Greater Revenue<\/h3>\n\n\n\n<p>One of the most important reasons publishers opt for in-app bidding is to maximize their ad revenue. This is due to an increased competition among sources compared with waterfall mediation, as these demand sources want to bid high enough to win ad placements.<\/p>\n\n\n\n<p>This form of bidding also facilitates diversified and stable earnings for publishers. If one demand source underperforms, there will be others to counteract this negative impact on revenue.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Fairness<\/h3>\n\n\n\n<p>Publishers will often mention that waterfall bidding lacks fairness, as the highest bid doesn\u2019t always win and these bidding partners can therefore not compete for the inventory. The auction is therefore seen as fixed.<\/p>\n\n\n\n<p>In-app bidding, however, eradicates this unfairness by ensuring the highest bid always wins. This method of programmatic advertising is therefore considered far more democratic, as all inventory buyers are given equal access to ad space.&nbsp;<\/p>\n\n\n\n<p>There is also greater diversity regarding demand sources \u2013 and end users can enjoy this greater diversity of ads.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"932\" src=\"https:\/\/adjoe.io\/app\/uploads\/2023\/07\/how-in-app-mediation-works-1024x932.png\" alt=\"diagram demonstrating the differences between waterfall and header bidding\" class=\"wp-image-85587\" style=\"width:710px\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-mediation-works-1024x932.png 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-mediation-works-300x273.png 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-mediation-works-768x699.png 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-mediation-works-1536x1398.png 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/07\/how-in-app-mediation-works.png 1875w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">3. Transparency<\/h3>\n\n\n\n<p>Transparency is also one of the benefits that in-app bidding has to offer&nbsp; publishers. They can more easily gain insights and understanding into what partners are willing to pay for ad inventory and are subsequently able to set more competitive prices.&nbsp;<\/p>\n\n\n\n<p>Waterfall bidding, on the contrary, often only allows publishers to view the value of the bids after the auction has concluded.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Greater Efficiency<\/h3>\n\n\n\n<p>In-app bidding tends to be easier for publishers to integrate, monitor, and adjust \u2013 it doesn\u2019t need many resources.&nbsp;<\/p>\n\n\n\n<p>This is compared with the tediousness of setting up waterfalls and manually managing and optimizing each demand source. Mobile header bidding therefore gives publishers more time to spend testing new monetization strategies, creating new apps, and other important activities with higher impact.<\/p>\n\n\n\n<p>Selling and buying inventory through this method also reduces latency, as the auction happens at a faster pace.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<div style=\"height:22px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>For many publishers in the mobile adtech space, mobile header bidding has become an extremely attractive alternative to waterfall bidding. This is due to in-app bidding\u2019s reputation as fair, transparent, efficient, and lucrative. Selling ad inventory this way brings in greater revenue, as bid prices are typically more competitive.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">FAQs<\/h3>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1681207001782\"><strong class=\"schema-faq-question\">What Is In-App Bidding?<\/strong> <p class=\"schema-faq-answer\">It is a real-time programmatic method of buying ad inventory. It allows multiple demand partners to bid on the same inventory simultaneously, and the highest bid wins within milliseconds.<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1684739997985\"><strong class=\"schema-faq-question\">How Does In-App Bidding Work?<\/strong> <p class=\"schema-faq-answer\">Once an app publisher has integrated a mobile header bidding solution into their mobile app, the solution is ready to send ad requests and receive bid requests from various demand sources. The demand source submitting the highest bid \u2013 the highest CPM \u2013 wins the ad impression.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1684740031834\"><strong class=\"schema-faq-question\">What Are the Benefits of In-App Bidding?<\/strong> <p class=\"schema-faq-answer\">In-app bidding is seen among app publishers as better for revenue. This is due to an increased competition among sources compared with waterfall mediation, as these demand sources want to bid high enough to win ad placements. This type of mediation is also known for being , fairer, more transparent, and more efficient than waterfall bidding. That\u2019s because the highest bid always wins in in-app bidding.<br\/><br\/><br\/><\/p> <\/div> <\/div>\n","protected":false},"author":25,"featured_media":52028,"menu_order":0,"template":"","ppma_author":[46,50],"class_list":["post-50126","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>In-App Bidding: How It Works &amp; Benefits Publishers | adjoe<\/title>\n<meta name=\"description\" content=\"What is in-app bidding &amp; how does it work? 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