{"id":58497,"date":"2026-05-21T22:10:43","date_gmt":"2026-05-21T19:10:43","guid":{"rendered":"https:\/\/affisemmp.com\/?post_type=glossary-term&p=58497"},"modified":"2026-09-14T11:03:08","modified_gmt":"2026-09-14T08:03:08","slug":"cross-device-tracking","status":"publish","type":"glossary-term","link":"https:\/\/affisemmp.com\/ru\/glossary-term\/cross-device-tracking\/","title":{"rendered":"Cross-Device Tracking"},"content":{"rendered":"

What is Cross-Device Tracking?<\/strong><\/h2>\n

Cross-Device Tracking<\/b> is the analytical method used by Mobile Measurement Partners (MMPs) to identify and link a single user\u2019s behavior across multiple devices, such as a desktop computer, smartphone, tablet, and smart TV.<\/p>\n

This enables marketers to map a continuous, unified user journey, ensuring that an ad clicked on a laptop can be accurately credited when the user ultimately downloads the app and makes a purchase on their mobile phone.<\/p>\n

How Cross-Device Tracking Works<\/strong><\/h2>\n

MMPs and advertising platforms rely on two primary methodologies to construct a «device graph»\u2014the database that connects different hardware to a single identity.<\/p>\n\n\n\n\n\n\n
Tracking Method<\/strong><\/td>\nHow it Works<\/strong><\/td>\nAccuracy<\/strong><\/td>\nPrivacy Status<\/strong><\/td>\n<\/tr>\n<\/thead>\n
Deterministic Matching<\/b><\/span><\/td>\nLinks devices using exact, persistent user data, primarily through logged-in accounts (e.g., matching a hashed email used to log into a website on desktop and an app on mobile).<\/span><\/td>\nHigh<\/b> (Near 100%)<\/span><\/td>\nFully compliant, as it relies on first-party consented data.<\/span><\/td>\n<\/tr>\n
Probabilistic Matching<\/b><\/span><\/td>\nUses machine learning to analyze anonymous data points\u2014such as IP addresses, Wi-Fi networks, browsing habits, and operating systems\u2014to infer that two devices belong to the same person.<\/span><\/td>\nMedium to High<\/b> (70-90%)<\/span><\/td>\nHeavily scrutinized and increasingly restricted by Apple\u2019s ATT and upcoming privacy regulations.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Why Cross-Device Tracking is Essential<\/strong><\/h2>\n

Without cross-device infrastructure, mobile marketing data becomes heavily siloed, leading to critical errors in budget allocation.<\/p>\n

    \n
  • \n

    Solving the Double-Counting Problem:<\/b> If a user clicks a web ad on their laptop and later installs the app via a mobile ad, a siloed system counts this as two separate users. Cross-device tracking deduplicates this, revealing it as a single acquisition path.<\/p>\n<\/li>\n

  • \n

    True ROAS Calculation:<\/b> High-ticket purchases and subscription sign-ups often involve research on a desktop before execution on mobile. Tracking this flow ensures top-of-funnel web campaigns receive the attribution credit they deserve.<\/p>\n<\/li>\n

  • \n

    Web-to-App Optimization:<\/b> It powers seamless transitions between mobile browsers and native apps, allowing marketers to run cheaper web campaigns that successfully funnel users into high-retention app environments.<\/p>\n<\/li>\n<\/ul>\n

    Cross-Device Capabilities in Affise MMP<\/strong><\/h2>\n

    Affise MMP<\/b> utilizes advanced Identity Resolution (IDR) to ensure your attribution data remains accurate across screens without violating user privacy.<\/p>\n

      \n
    • \n

      Unified User Profiles:<\/b> Affise creates a single source of truth for each user, stitching together their interactions from mobile web, desktop, and native apps into one cohesive timeline.<\/p>\n<\/li>\n

    • \n

      Privacy-First Architecture:<\/b> Affise prioritizes deterministic, hashed matching (like login IDs) to maintain compliance with GDPR, CCPA, and Apple\u2019s ATT framework, reducing reliance on easily blocked cookies.<\/p>\n<\/li>\n

    • \n

      Deep Linking Infrastructure:<\/b> Affise provides the necessary deep linking technology to safely pass attribution data when routing a user from a desktop email or social media post directly into a specific page within your mobile app.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false},"class_list":["post-58497","glossary-term","type-glossary-term","status-publish","hentry"],"acf":[],"yoast_head":"\nCross-Device Tracking Definition: Marketing Glossary<\/title>\n<meta name=\"description\" content=\"What is Cross-Device Tracking? 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