{"id":13999,"date":"2025-03-22T15:07:00","date_gmt":"2025-03-22T15:07:00","guid":{"rendered":"https:\/\/adjoe.io\/?post_type=glossary&#038;p=13999"},"modified":"2025-07-10T15:29:20","modified_gmt":"2025-07-10T15:29:20","slug":"cost-per-install-cpi","status":"publish","type":"glossary","link":"https:\/\/adjoe.io\/zh-tw\/glossary\/cost-per-install-cpi\/","title":{"rendered":"Cost Per Install (CPI)"},"content":{"rendered":"\n<div class=\"glossary-description\">\n\t\t<div class=\"glossary-description__wrapper\">\n              <h1 class=\"glossary-description__title\">\n          What Is Cost Per Install?\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\tCost per install (CPI) is a bidding or pricing model. In a CPI campaign, publishers serve ads on multiple platforms to drive users to install the mobile app they are advertising. <br><br>CPI is the market price used in mobile app campaigns to measure the impact of ad spend. It is the cost that advertisers pay for a single install. \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;\">CPI is a fixed price, set in advance, and is the cost that advertisers pay the publisher for a single install<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The CPI is determined by many factors, such as geolocation, vertical, and ad unit<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">CPI is low risk for advertisers compared with other pricing models, such as CPM <\/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\"><strong>How Do You Calculate Cost Per Install?<\/strong><\/h2>\n\n\n\n<p>You can calculate cost per install by dividing the total ad spend for a particular campaign over a specific period by the number of new installs attributable to the campaign during the same period.&nbsp;<\/p>\n\n\n\n<p>To simplify this, here\u2019s the formula for calculating cost per install.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>The Cost Per Install Formula<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized is-style-default\"><img decoding=\"async\" src=\"https:\/\/adjoe.io\/app\/uploads\/2022\/02\/CPI-01-1024x405.png\" alt=\"formula for cost per install \u2013 CPI formula: ad spend\/installs from campaign\" class=\"wp-image-14283\" width=\"910\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2022\/02\/CPI-01-1024x405.png 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/02\/CPI-01-300x119.png 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/02\/CPI-01-768x304.png 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/02\/CPI-01-1536x608.png 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/02\/CPI-01-2048x811.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>So, let\u2019s say you spent 500 US dollars on advertising for your app, and it produced 250 new app installs, your CPI would be calculated as follows.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-background has-fixed-layout\" style=\"background-color:#f3f4f5\"><tbody><tr><td><strong>$500 <\/strong><\/td><td>\u00f7<\/td><td><strong>250<\/strong><\/td><td><strong>=<\/strong><\/td><td><strong> $2 per Install<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><strong>What Could Affect My CPI?<\/strong><\/strong><\/h3>\n\n\n\n<p>You should bear in mind when you\u2019re calculating your CPI that there is a short list of factors that will inevitably influence your CPI metric, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:18px\">\n<li><strong>GEO: <\/strong>More developed GEOs will have a higher CPI. For example, in the United States, the average CPI will be much higher than the average CPI in Latin America.<\/li>\n\n\n\n<li><strong>Channel: <\/strong>Some<strong> <\/strong>niche channels that have a very select audience are able to demand a higher CPI compared with mainstream channels.<\/li>\n\n\n\n<li><strong>App vertical: <\/strong>Some app genres are more competitive than others. The CPI for <a href=\"https:\/\/adjoe.io\/glossary\/hypercasual-games\/\" target=\"_blank\" rel=\"noreferrer noopener\">hypercasual games<\/a> is usually drastically lower than other gaming verticals such as casual and <a href=\"https:\/\/adjoe.io\/glossary\/what-are-hardcore-mobile-games\/\" target=\"_blank\" rel=\"noreferrer noopener\">hardcore games<\/a>.<\/li>\n\n\n\n<li><strong>Cost of ad unit: <\/strong>A CPI might be higher for some of a publisher\u2019s inventory \u2013 especially if it is more in demand.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Use Cost Per Install?<\/strong><\/h2>\n\n\n\n<p>CPI is a pretty easy way to measure the return on investment (ROI) from your ad spend \u2013 especially, if you are buying ads on a pay-per-install basis. In that case, you only pay for the ad network once someone has downloaded and installed the ad. This is one of the best ways to boost your ad spend.<\/p>\n\n\n\n<p>It incentivizes ad networks to deliver the highest number of installs, since they only get paid when users install your app. Analyzing CPI data can help you determine the most efficient use of your ad spend and which platform is the best for your app to boost downloads.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why Does Cost per Install Matter?<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adjoe.io\/app\/uploads\/2022\/08\/glossary_CPI_square-03-3-1024x652.jpg\" alt=\"lady holding smartphone with two hands and dollar sign icons\" class=\"wp-image-29120\" width=\"910\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2022\/08\/glossary_CPI_square-03-3-1024x652.jpg 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/08\/glossary_CPI_square-03-3-300x191.jpg 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/08\/glossary_CPI_square-03-3-768x489.jpg 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/08\/glossary_CPI_square-03-3-1536x978.jpg 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2022\/08\/glossary_CPI_square-03-3-2048x1304.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>1. Track the cost and effectiveness of your ads.<\/strong><\/p>\n\n\n\n<p>The biggest benefit is that you get what you pay for. If your goal is to boost app installs, you can adjust the CPI to increase the number of installs you\u2019d like to get from a certain channel. Alternatively, you can adjust the price to better hit your <a href=\"https:\/\/adjoe.io\/glossary\/roas\/\" target=\"_blank\" rel=\"noreferrer noopener\">ROAS<\/a> targets for a certain channel.<\/p>\n\n\n\n<p><strong>2. Boost your rankings in the app stores.<\/strong><\/p>\n\n\n\n<p>If you spend a lot on paid acquisition, this can lead to more downloads. And a boost in your app ranking. Leading to an uplift in your app\u2019s visibility.<\/p>\n\n\n\n<p><strong>3. It\u2019s low risk for advertisers compared with CPM.<\/strong><\/p>\n\n\n\n<p>To install an app, there must be high user intent. Meaning, advertisers know that they are paying for users who are generally interested in their app and more likely to engage with it. Meaning, this pricing model reduces wasted marketing efforts, time, and money.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Should You Use Cost Per Install as a KPI?<\/strong><\/h3>\n\n\n\n<p>You could have the best app in the market, but if you don\u2019t look at long-term retention metrics as well as your CPI, you might not achieve any of the sustainable growth you want for your app.<\/p>\n\n\n\n<p>Here\u2019s the bottom line: Installs are great, but it\u2019s the postinstall actions that lead to longer-term success for your app. So, realistically, CPI should be just one component of your KPIs, along with other metrics such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\" style=\"font-size:18px\">\n<li><a href=\"https:\/\/adjoe.io\/glossary\/daily-active-users-dau\/\" target=\"_blank\" rel=\"noreferrer noopener\">Daily active users (DAU)<\/a><\/li>\n\n\n\n<li>Monthly active users (MAU)<\/li>\n\n\n\n<li>Session length<\/li>\n\n\n\n<li>Average revenue per user (ARPU)<\/li>\n\n\n\n<li>Monthly recurring revenue (MRR)<\/li>\n\n\n\n<li>Return on ad spend (ROAS)<\/li>\n\n\n\n<li><a href=\"https:\/\/adjoe.io\/glossary\/app-lifetime-value-ltv\/\" target=\"_blank\" rel=\"noreferrer noopener\">Lifetime value (LTV)<\/a><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adjoe.io\/app\/uploads\/2023\/02\/glossary_CPI_square-02-1024x671.jpg\" alt=\"bar graph showing how cost per install affects app installs\" class=\"wp-image-42131\" width=\"900\" srcset=\"https:\/\/adjoe.io\/wp-content\/uploads\/2023\/02\/glossary_CPI_square-02-1024x671.jpg 1024w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/02\/glossary_CPI_square-02-300x196.jpg 300w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/02\/glossary_CPI_square-02-768x503.jpg 768w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/02\/glossary_CPI_square-02-1536x1006.jpg 1536w, https:\/\/adjoe.io\/wp-content\/uploads\/2023\/02\/glossary_CPI_square-02-2048x1341.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>You should use CPI for many reasons, as it is a good indicator of your campaign\u2019s effectiveness and is low risk for advertisers compared with other pricing models.&nbsp;<\/p>\n\n\n\n<p>But whatever you do, make sure you always maintain a holistic overview of your CPI and other metrics, such as LTV and ROAS. Otherwise, you\u2019ll only have a one-dimensional insight \u2013 a short-term insight \u2013 into how your app is performing.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FAQs<\/strong><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1645549531693\"><strong class=\"schema-faq-question\">What Does &#8220;CPI&#8221; Stand for?<\/strong> <p class=\"schema-faq-answer\">\u201cCPI\u201d stands for \u201ccost per install.\u201d<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1645549609911\"><strong class=\"schema-faq-question\">What Is the Average Cost per Install?<\/strong> <p class=\"schema-faq-answer\">Prices will vary greatly depending on the type of app, ad unit, and GEO.<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1645549661253\"><strong class=\"schema-faq-question\">How Do I Calculate CPI?<\/strong> <p class=\"schema-faq-answer\">To calculate the cost per install, take the amount of your mobile ad spend and divide it by the number of installs your ads generated.<br\/><br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1645549691555\"><strong class=\"schema-faq-question\">What Is the Target Cost per Install?<\/strong> <p class=\"schema-faq-answer\">In short, it depends. You need to be competitive within your app genre, GEO, and platform.<\/p> <\/div> <\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n","protected":false},"author":29,"featured_media":29118,"menu_order":0,"template":"","ppma_author":[70],"class_list":["post-13999","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>What Is Cost Per Install: CPI Campaigns Defined | adjoe<\/title>\n<meta name=\"description\" content=\"Discover the importance of cost per install in your campaigns. Why does CPI matter in mobile adtech &amp; which other KPIs should you track with it? 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