{"id":3562,"date":"2025-05-19T12:01:38","date_gmt":"2025-05-19T12:01:38","guid":{"rendered":"https:\/\/persona.ly\/blog\/?p=3562"},"modified":"2025-05-19T12:01:39","modified_gmt":"2025-05-19T12:01:39","slug":"how-we-topped-d7-roas-by-400-by-w2-running-ios-and-android-re-engagement-campaigns-for-cookierun-kingdom","status":"publish","type":"post","link":"https:\/\/persona.ly\/blog\/2025\/05\/how-we-topped-d7-roas-by-400-by-w2-running-ios-and-android-re-engagement-campaigns-for-cookierun-kingdom\/","title":{"rendered":"How We Topped D7 ROAS by 400% by W2 Running iOS and Android Re-engagement Campaigns for CookieRun: Kingdom"},"content":{"rendered":"\n<p style=\"font-size:15px\"><em><a href=\"https:\/\/content.cdn.personaly.bid\/case_studies\/Devsisters_x_Personaly_Case_Study_RT_Final.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Download the pdf version of the case study<\/a><\/em><\/p>\n\n\n\n<div class=\"is-layout-flex wp-container-3 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column is-vertically-aligned-top\" style=\"flex-basis:25%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/CookieRun_-Kingdom-APP-ICON-CASE-STUDY.webp\"><img decoding=\"async\" loading=\"lazy\" width=\"372\" height=\"370\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/CookieRun_-Kingdom-APP-ICON-CASE-STUDY.webp\" alt=\"\" class=\"wp-image-3563\"\/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\" style=\"flex-basis:75%\">\n<div style=\"height:7px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>We worked with <strong>Devsisters Corporation<\/strong>, a leading Korea-based game developer, to re-engage users of <strong>CookieRun: Kingdom on iOS and Android in the US and South Korea<\/strong>.\u00a0<br>Ranked as a top-grossing RPG on Android and iOS worldwide, CookieRun: Kingdom boasts a 4.8-star rating on Android and 4.7 on iOS, reflecting its highly engaged audience and distinctive gameplay.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2>Results at a Glance<\/h2>\n\n\n\n<div class=\"is-layout-flex wp-container-7 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column\">\n<p class=\"has-text-align-left has-x-large-font-size\"><strong>400%<\/strong><\/p>\n\n\n\n<p>D7 ROAS above the KPI on W2 (iOS campaign)<\/p>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\">\n<p class=\"has-x-large-font-size\"><strong>290%<\/strong><\/p>\n\n\n\n<p>D7 ROAS above the KPI on W1 (Android campaign)<\/p>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\">\n<p class=\"has-x-large-font-size\"><strong>2.9x<\/strong><\/p>\n\n\n\n<p>iOS campaign scaling by W2 vs. W1<\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Campaign Goal<\/h2>\n\n\n\n<p>The goal of the campaign <strong>was to re-engage lapsed payers, bring them back to use the game and motivate them to make additional in-app purchases<\/strong>, with a specific ROAS being a KPI.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p><img decoding=\"async\" loading=\"lazy\" width=\"147\" height=\"180\" class=\"wp-image-3564\" style=\"width: 147px;\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/Hong-In-Kim-UA-Manager-at-Devsisters-Corporation-1.png\" alt=\"Hong In Kim, UA Manager at Devsisters Corporation 1\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\">&#8220;From the outset of our collaboration with Persona.ly, they have consistently surpassed our KPIs, distinguishing themselves from other partners by maintaining exceptional performance.<br>No matter how much we scale, we\u2019re thrilled with the quality of their campaigns.<br>We\u2019re especially excited about their success in untapping iOS re-engagement, bringing high-value players back to enjoy CookieRun: Kingdom.&#8221;<\/p>\n\n\n\n<p><\/p>\n<cite><strong>Hong In Kim, UA Manager at Devsisters Corporation<\/strong><\/cite><\/blockquote>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Programmatic Re-engagement Process <\/h2>\n\n\n\n<p>At the initial stage of the re-engagement campaign, using our programmatic ML-driven DSP segmentation engine, available to clients at no extra cost &#8211; <strong><em>Live Audiences<\/em><\/strong> &#8211; we quickly generated the audience to target.<\/p>\n\n\n\n<div class=\"is-layout-flex wp-container-10 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column\">\n<p>Unlike other third-party solutions, Persona.ly\u2019s <em><strong>Live Audiences<\/strong><\/em> updates user segments in real time. This enables advertisers to re-engage users the moment they are considered churned (without waiting for third-party batch updates), suppress users when they return to the app, and reduce costs and dependency on external solutions.<\/p>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\"><div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/Live-Audiences-Persona.ly_.webp\"><img decoding=\"async\" loading=\"lazy\" width=\"477\" height=\"368\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/Live-Audiences-Persona.ly_.webp\" alt=\"\" class=\"wp-image-3570\"\/><\/a><\/figure><\/div><\/div>\n<\/div>\n\n\n\n<p>From the first week of the campaign, we outperformed the D7 ROAS KPI by nearly 4 times, for both iOS and Android campaigns. As our programmatic DSP gathered more data for our machine learning algorithm to refine predictions, we consistently outperformed the ROAS KPI.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2>Campaign Results<\/h2>\n\n\n\n<h3>iOS Campaign<\/h3>\n\n\n\n<div class=\"is-layout-flex wp-container-13 wp-block-columns\">\n<div class=\"is-layout-flow wp-block-column\">\n<p>In the first week of running the iOS re-engagement campaign, we outperformed the D7 ROAS KPI by nearly 4 times. Further optimizations enabled us to outperform the D7 ROAS KPI by 5 times while scaling the campaign by 2.9 times.<\/p>\n<\/div>\n\n\n\n<div class=\"is-layout-flow wp-block-column\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-ROAS-Relative-to-KPI-iOS-Campaign.webp\"><img decoding=\"async\" loading=\"lazy\" width=\"554\" height=\"476\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-ROAS-Relative-to-KPI-iOS-Campaign.webp\" alt=\"D7-ROAS-Relative-to-KPI-iOS-Campaign\" class=\"wp-image-3565\"\/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3>D7 ROAS and Campaign Scaling &#8211; Android Campaign<\/h3>\n\n\n\n<p>From the first week of the campaign, thanks to factors such as targeting audiences who were more likely to make new in-app purchases and a special event in the CookieRun: Kingdom app, we outperformed the D7 ROAS KPI by 3.9 times.<\/p>\n\n\n\n<p>We further scaled the campaign while substantially outperforming the ROAS KPI beyond the special event period.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-ROAS-and-Campaign-Scaling-Android-Campaign-1.webp\"><img decoding=\"async\" loading=\"lazy\" width=\"691\" height=\"317\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-ROAS-and-Campaign-Scaling-Android-Campaign-1.webp\" alt=\"\" class=\"wp-image-3567\"\/><\/a><\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3>Bid Optimization<\/h3>\n\n\n\n<p>As part of the strategy and to ensure the incrementality, only video creatives were used for the re-engagement campaign. Being the most lucrative ad units in the programmatic ecosystem, video creatives enabled us to both immerse users back into the game and ensure no conversions were <a href=\"https:\/\/persona.ly\/glossary\/fraud-prevention\/\" target=\"_blank\" rel=\"noreferrer noopener\">misattributed<\/a>.<\/p>\n\n\n\n<p>The use of our proprietary Live Audiences allowed us to focus on two segments of users:<\/p>\n\n\n\n<ol>\n<li>High-paying users &#8211; based on the amount spent in the app<\/li>\n\n\n\n<li>Payers &#8211; users who made purchases in the past but haven\u2019t reached the High-paying users spending threshold<\/li>\n<\/ol>\n\n\n\n<p>The campaign\u2019s key challenge was identifying users within each segment who had the highest probability of making additional purchases.<\/p>\n\n\n\n<p>Our bid optimization strategy included two critical steps:<\/p>\n\n\n\n<ol>\n<li><strong><a href=\"https:\/\/persona.ly\/glossary\/real-time-bidding\/bid-shading-making-the-most-of-first-price-auctions\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bid shading<\/a>:<\/strong> A practice used by ML-based DSPs to predict auction market prices based on historical data and bid optimally. Processing over 4 million ad auctions per second, our machine learning-driven platform adjusts bids based on the audience\u2019s predicted lifetime value (LTV), enabling significant budget savings.<\/li>\n\n\n\n<li><strong>Bid optimization based on multiple factors:<\/strong> Following the initial learning period, our DSP\u2019s ML algorithm predicted user behaviors that increased the likelihood of users making additional purchases.<\/li>\n<\/ol>\n\n\n\n<p>The graph below displays the effect of bid optimization: as we focused on users with a higher probability of making additional purchases, the eCPM increased to win the audience in programmatic auctions. The D7 re-purchase after reattribution increased in line with eCPM.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-Re-Purchase-CVR-Growth-and-eCPM-Android-Campaign.webp\"><img decoding=\"async\" loading=\"lazy\" width=\"691\" height=\"271\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2025\/05\/D7-Re-Purchase-CVR-Growth-and-eCPM-Android-Campaign.webp\" alt=\"\" class=\"wp-image-3568\"\/><\/a><\/figure><\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>About Devsisters<\/h2>\n\n\n\n<p>Since its founding in 2007, Devsisters has been providing games and services, centered around the Cookie Run IP, that have been loved by more than 200 millions users around the world. <a href=\"https:\/\/www.devsisters.com\/en\" target=\"_blank\" rel=\"noreferrer noopener\">Devsisters<\/a> is currently expanding its horizons to multiple platforms, such as mobile, PC, console gaming, and VR.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p><\/p>\n\n\n\n<p><img decoding=\"async\" loading=\"lazy\" width=\"145\" height=\"296\" class=\"wp-image-3467\" style=\"width: 145px;\" src=\"https:\/\/persona.ly\/blog\/wp-content\/uploads\/2024\/09\/Rachel-SEO-Business-Development-Director-Korea-at-Persona.ly-1.webp\" alt=\"Rachel SEO - Business Development Director, Korea at Persona.ly (1)\"><\/p>\n\n\n\n<p class=\"has-medium-font-size\">&#8220;We\u2019re thrilled with the outstanding results of our re-engagement campaign for Devsisters\u2019 CookieRun: Kingdom. This success underscores the power of our programmatic expertise in driving high-value user engagement for one of South Korea\u2019s most iconic mobile games.<br>Beyond our advanced machine learning-driven DSP, we aim to provide strategic insights and foster long-term partnerships with our clients.&#8221;<\/p>\n<cite><a href=\"https:\/\/www.linkedin.com\/in\/dana-purinson-035464111\/\"><\/a><a href=\"https:\/\/www.linkedin.com\/in\/rachel-seo-199a74127\/\">Rachel SEO<\/a> &#8211; Business Development Director, Korea at Persona.ly<br><\/cite><\/blockquote>\n\n\n\n<h2>About Persona.ly<\/h2>\n\n\n\n<p>Persona.ly is a data-driven product company specializing in mobile user acquisition and retargeting, powered by proprietary machine learning algorithms and a robust first-party data management platform (DMP).<\/p>\n\n\n\n<p>We help leading mobile companies like King, <a href=\"https:\/\/persona.ly\/blog\/2024\/11\/how-we-outperformed-the-roas-kpi-in-3-weeks-for-goddess-of-victory-nikke\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tencent<\/a>, <a href=\"https:\/\/persona.ly\/blog\/2022\/11\/mobile-retargeting-papaya-gaming\/\" target=\"_blank\" rel=\"noreferrer noopener\">Papaya<\/a>, <a href=\"https:\/\/persona.ly\/blog\/2023\/10\/how-we-outperformed-d7-roas-5-6x-for-grand-summoners-hardcore-rpg-on-ios\/\" target=\"_blank\" rel=\"noreferrer noopener\">NextNinja<\/a>, Tilting Point, <a href=\"https:\/\/persona.ly\/blog\/2025\/01\/how-persona-ly-increased-d7-ftd-cvr-for-non-payers-by-1-6x-in-2-months-for-nexons-maplestory-m\/\" target=\"_blank\" rel=\"noreferrer noopener\">Nexon <\/a>and many others reach and exceed their growth goals by accurately predicting which users are most likely to engage and convert. Our machine learning models are optimized to target high-value users based on predicted lifetime value (LTV), driving strong return on ad spend (ROAS) and long-term user quality.<br><br>Our in-house <a href=\"https:\/\/persona.ly\/programmatic-dsp\" target=\"_blank\" rel=\"noreferrer noopener\">programmatic DSP<\/a> is directly integrated with top-tier ad exchanges and OEMs, processing over 4 million ad requests per second globally.<br><br>By combining real-time predictive analytics with programmatic scale, we empower our partners to unlock smarter growth, higher LTV, and measurable incremental impact.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Download the pdf version of the case study We worked with Devsisters Corporation, a leading Korea-based game developer, to re-engage users of CookieRun: Kingdom on iOS and Android in the US and South Korea.&nbsp;Ranked as a top-grossing RPG on Android and iOS worldwide, CookieRun: Kingdom boasts a 4.8-star rating on Android and 4.7 on iOS, &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/persona.ly\/blog\/2025\/05\/how-we-topped-d7-roas-by-400-by-w2-running-ios-and-android-re-engagement-campaigns-for-cookierun-kingdom\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;How We Topped D7 ROAS by 400% by W2 Running iOS and Android Re-engagement Campaigns for CookieRun: Kingdom&#8221;<\/span><\/a><\/p>\n","protected":false},"author":17,"featured_media":3569,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[53],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.13 - 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