{"id":1758,"date":"2026-07-15T17:00:00","date_gmt":"2026-07-15T22:00:00","guid":{"rendered":"https:\/\/tolinku.com\/blog\/?p=1758"},"modified":"2026-03-07T03:50:08","modified_gmt":"2026-03-07T08:50:08","slug":"attribution-for-subscription-apps","status":"publish","type":"post","link":"https:\/\/tolinku.com\/blog\/attribution-for-subscription-apps\/","title":{"rendered":"Attribution for Subscription Apps: Revenue Tracking"},"content":{"rendered":"\n

Subscription apps have a unique attribution challenge: the install is free, the value comes from ongoing payments. A user acquired from a Facebook ad who installs, starts a free trial, converts to paid, and stays subscribed for 18 months is worth far more than one who installs, starts a trial, and cancels. Attribution needs to track this entire lifecycle, not just the install.<\/p>\n\n\n\n

This guide covers attribution for subscription apps. For gaming app attribution, see attribution for mobile gaming apps<\/a>. For attribution models, see last-click vs multi-touch attribution<\/a>.<\/p>\n\n\n\n

The Subscription Attribution Funnel<\/h2>\n\n\n\n
Ad Click \u2192 Install \u2192 Onboarding \u2192 Trial Start \u2192 Trial Active \u2192 Trial-to-Paid \u2192 Renewal \u2192 Churn\n<\/code><\/pre>\n\n\n\n
Each step needs to be tracked and attributed back to the acquisition source:<\/p>\n\n\n\n
\n\n\n\n\n\n\n\n\n
Event<\/th>\nAttribution Question<\/th>\n<\/tr>\n<\/thead>\n
Install<\/td>\nWhich campaign drove the install?<\/td>\n<\/tr>\n
Trial start<\/td>\nWhich channel's users start trials at the highest rate?<\/td>\n<\/tr>\n
Trial-to-paid<\/td>\nWhich source has the best trial conversion rate?<\/td>\n<\/tr>\n
Renewal (Month 2+)<\/td>\nWhich source retains subscribers longest?<\/td>\n<\/tr>\n
Churn<\/td>\nWhich source has the highest churn rate?<\/td>\n<\/tr>\n
LTV (12 months)<\/td>\nWhich channel delivers the highest lifetime value?<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Key Metrics by Acquisition Source<\/h2>\n\n\n\n
Funnel Metrics<\/h3>\n\n\n\n
\n\n\n\n\n\n\n
Metric<\/th>\nDefinition<\/th>\nWhy It Matters<\/th>\n<\/tr>\n<\/thead>\n
Install-to-trial rate<\/td>\nTrial starts \/ installs<\/td>\nOnboarding effectiveness by source<\/td>\n<\/tr>\n
Trial-to-paid rate<\/td>\nPaid conversions \/ trial starts<\/td>\nQuality of acquired users<\/td>\n<\/tr>\n
Day 0 paid conversion<\/td>\nUsers who paid immediately (no trial)<\/td>\nHigh-intent user percentage<\/td>\n<\/tr>\n
Free-to-paid rate<\/td>\nPaid conversions \/ free installs<\/td>\nOverall conversion by source<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Revenue Metrics<\/h3>\n\n\n\n
\n\n\n\n\n\n\n\n
Metric<\/th>\nDefinition<\/th>\nWhy It Matters<\/th>\n<\/tr>\n<\/thead>\n
ARPPU (Average Revenue Per Paying User)<\/td>\nRevenue \/ paying users<\/td>\nRevenue quality<\/td>\n<\/tr>\n
LTV (Lifetime Value)<\/td>\nTotal revenue per user over lifetime<\/td>\nTrue user value<\/td>\n<\/tr>\n
LTV:CAC ratio<\/td>\nLTV \/ cost per acquisition<\/td>\nCampaign sustainability<\/td>\n<\/tr>\n
Payback period<\/td>\nMonths until CAC is recovered<\/td>\nCash flow<\/td>\n<\/tr>\n
ROAS (30\/60\/90\/365 day)<\/td>\nRevenue \/ ad spend at each window<\/td>\nTime-boxed ROI<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Retention Metrics<\/h3>\n\n\n\n
\n\n\n\n\n\n\n
Metric<\/th>\nDefinition<\/th>\nWhy It Matters<\/th>\n<\/tr>\n<\/thead>\n
Month 1 retention<\/td>\n% still subscribed after 1 month<\/td>\nEarly churn indicator<\/td>\n<\/tr>\n
Month 3 retention<\/td>\n% still subscribed after 3 months<\/td>\nMedium-term quality<\/td>\n<\/tr>\n
Month 12 retention<\/td>\n% still subscribed after 12 months<\/td>\nLong-term value<\/td>\n<\/tr>\n
Churn rate by source<\/td>\nMonthly churn rate per acquisition channel<\/td>\nChannel quality<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Tracking Subscription Events<\/h2>\n\n\n\n
Server-Side Event Tracking<\/h3>\n\n\n\n
Track subscription events on your server using App Store and Google Play server notifications:<\/p>\n\n\n\n
\/\/ Apple App Store Server Notifications V2\napp.post('\/webhooks\/apple', async (req, res) => {\n  const notification = decodeAppleNotification(req.body);\n\n  switch (notification.notificationType) {\n    case 'SUBSCRIBED':\n      await trackEvent(notification.originalTransactionId, 'trial_start', {\n        productId: notification.productId,\n        price: notification.price\n      });\n      break;\n\n    case 'DID_RENEW':\n      await trackEvent(notification.originalTransactionId, 'renewal', {\n        productId: notification.productId,\n        price: notification.price,\n        renewalNumber: notification.renewalCount\n      });\n      break;\n\n    case 'EXPIRED':\n    case 'DID_FAIL_TO_RENEW':\n      await trackEvent(notification.originalTransactionId, 'churn', {\n        reason: notification.expirationReason\n      });\n      break;\n\n    case 'DID_CHANGE_RENEWAL_STATUS':\n      if (!notification.autoRenewStatus) {\n        await trackEvent(notification.originalTransactionId, 'cancellation_intent', {});\n      }\n      break;\n  }\n\n  res.sendStatus(200);\n});\n\n\/\/ Google Play Real-Time Developer Notifications\napp.post('\/webhooks\/google', async (req, res) => {\n  const notification = decodeGoogleNotification(req.body);\n\n  switch (notification.subscriptionNotification.notificationType) {\n    case 4: \/\/ SUBSCRIPTION_PURCHASED\n      await trackEvent(notification.purchaseToken, 'subscription_start', {\n        productId: notification.subscriptionId\n      });\n      break;\n\n    case 2: \/\/ SUBSCRIPTION_RENEWED\n      await trackEvent(notification.purchaseToken, 'renewal', {\n        productId: notification.subscriptionId\n      });\n      break;\n\n    case 13: \/\/ SUBSCRIPTION_EXPIRED\n      await trackEvent(notification.purchaseToken, 'churn', {});\n      break;\n  }\n\n  res.sendStatus(200);\n});\n<\/code><\/pre>\n\n\n\n
Linking Subscriptions to Attribution<\/h3>\n\n\n\n
Connect subscription events to the original attribution source:<\/p>\n\n\n\n
interface UserAttribution {\n  userId: string;\n  installSource: string;       \/\/ 'facebook', 'google', 'organic'\n  campaignId?: string;\n  installDate: Date;\n  subscriptionEvents: SubscriptionEvent[];\n}\n\nasync function getAttributedRevenue(\n  source: string,\n  dateRange: DateRange\n): Promise<RevenueReport> {\n  const users = await db.query(`\n    SELECT\n      u.install_source,\n      u.campaign_id,\n      COUNT(DISTINCT u.user_id) AS users,\n      COUNT(DISTINCT CASE WHEN s.event = 'trial_start' THEN u.user_id END) AS trials,\n      COUNT(DISTINCT CASE WHEN s.event = 'subscription_start' THEN u.user_id END) AS paid,\n      SUM(CASE WHEN s.event IN ('subscription_start', 'renewal') THEN s.revenue ELSE 0 END) AS total_revenue\n    FROM users u\n    LEFT JOIN subscription_events s ON u.user_id = s.user_id\n    WHERE u.install_source = ?\n      AND u.install_date BETWEEN ? AND ?\n    GROUP BY u.install_source, u.campaign_id\n  `, [source, dateRange.start, dateRange.end]);\n\n  return users;\n}\n<\/code><\/pre>\n\n\n\n
LTV Calculation by Source<\/h2>\n\n\n\n
Cohort-Based LTV<\/h3>\n\n\n\n
Calculate LTV by acquisition cohort and source:<\/p>\n\n\n\n
async function calculateLTV(\n  source: string,\n  cohortMonth: string,\n  daysAfterInstall: number\n): Promise<number> {\n  const result = await db.query(`\n    SELECT\n      AVG(cohort_revenue) AS avg_ltv\n    FROM (\n      SELECT\n        u.user_id,\n        SUM(CASE\n          WHEN s.event_date <= u.install_date + INTERVAL ? DAY\n          THEN s.revenue\n          ELSE 0\n        END) AS cohort_revenue\n      FROM users u\n      LEFT JOIN subscription_events s ON u.user_id = s.user_id\n      WHERE u.install_source = ?\n        AND DATE_FORMAT(u.install_date, '%Y-%m') = ?\n      GROUP BY u.user_id\n    ) cohort\n  `, [daysAfterInstall, source, cohortMonth]);\n\n  return result[0].avg_ltv;\n}\n<\/code><\/pre>\n\n\n\n
LTV Curves<\/h3>\n\n\n\n
Plot LTV over time for each acquisition source:<\/p>\n\n\n\n
\n\n\n\n\n\n\n
Source<\/th>\nDay 0 LTV<\/th>\nDay 30 LTV<\/th>\nDay 90 LTV<\/th>\nDay 365 LTV<\/th>\n<\/tr>\n<\/thead>\n
Facebook<\/td>\n$0.00<\/td>\n$4.50<\/td>\n$12.00<\/td>\n$38.00<\/td>\n<\/tr>\n
Google Search<\/td>\n$0.00<\/td>\n$5.20<\/td>\n$14.50<\/td>\n$45.00<\/td>\n<\/tr>\n
TikTok<\/td>\n$0.00<\/td>\n$3.80<\/td>\n$9.50<\/td>\n$28.00<\/td>\n<\/tr>\n
Organic<\/td>\n$0.00<\/td>\n$6.00<\/td>\n$16.00<\/td>\n$52.00<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Google Search users have the highest paid LTV (organic is higher but has no acquisition cost). TikTok users have the lowest LTV, suggesting lower-quality traffic for this app type.<\/p>\n\n\n\n
Trial Optimization by Source<\/h2>\n\n\n\n
Trial Configuration Testing<\/h3>\n\n\n\n
Different acquisition sources may respond differently to trial configurations:<\/p>\n\n\n\n
\n\n\n\n\n\n
Source<\/th>\n7-Day Trial Conversion<\/th>\n14-Day Trial Conversion<\/th>\nNo Trial Conversion<\/th>\n<\/tr>\n<\/thead>\n
Branded search<\/td>\n45%<\/td>\n42%<\/td>\n30%<\/td>\n<\/tr>\n
Social (Meta)<\/td>\n25%<\/td>\n30%<\/td>\n12%<\/td>\n<\/tr>\n
Display<\/td>\n18%<\/td>\n22%<\/td>\n8%<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n
Social users benefit more from longer trials (they need more time to experience the product), while search users already have intent and convert well with shorter trials or no trial at all.<\/p>\n\n\n\n
SKAdNetwork and Subscription Events<\/h2>\n\n\n\n
On iOS, SKAdNetwork<\/a> limits what you can report back to ad networks. For subscription apps, use the conversion value to encode subscription events:<\/p>\n\n\n\n
\/\/ SKAN 4.0 conversion value scheme for subscription apps\nfunc updateSKANConversion(event: SubscriptionEvent) {\n    var fineValue: Int = 0\n\n    switch event {\n    case .install:\n        fineValue = 0\n    case .trialStart:\n        fineValue = 10\n    case .trialDay3Active:\n        fineValue = 20\n    case .trialDay7Active:\n        fineValue = 30\n    case .paidConversion(let tier):\n        switch tier {\n        case .monthly: fineValue = 40\n        case .annual: fineValue = 50\n        case .premium: fineValue = 60\n        }\n    }\n\n    SKAdNetwork.updatePostbackConversionValue(fineValue, coarseValue: .high) { error in\n        if let error = error {\n            print("SKAN update failed: \\(error)")\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n
Tolinku for Subscription Attribution<\/h2>\n\n\n\n
Tolinku's analytics<\/a> track deep link clicks and attribute conversions, including subscription events. When a user clicks a Tolinku deep link and later subscribes, the conversion is attributed to the original click source. Configure subscription event tracking in the Tolinku dashboard<\/a>.<\/p>\n\n\n\n
For mobile attribution, see mobile attribution: a developer's guide<\/a>. For gaming app attribution, see attribution for mobile gaming apps<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Track attribution for subscription-based apps. Measure trial-to-paid conversions, LTV by channel, and subscription revenue by source.<\/p>\n","protected":false},"author":2,"featured_media":1757,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"Attribution for Subscription Apps: Revenue Tracking","rank_math_description":"Track attribution for subscription-based apps. Measure trial-to-paid conversions, LTV by channel, and subscription revenue by source.","rank_math_focus_keyword":"attribution subscription apps","rank_math_canonical_url":"","rank_math_facebook_title":"","rank_math_facebook_description":"","rank_math_facebook_image":"https:\/\/tolinku.com\/blog\/wp-content\/uploads\/2026\/03\/og-attribution-for-subscription-apps.png","rank_math_facebook_image_id":"","rank_math_twitter_title":"","rank_math_twitter_description":"","rank_math_twitter_image":"https:\/\/tolinku.com\/blog\/wp-content\/uploads\/2026\/03\/og-attribution-for-subscription-apps.png","footnotes":""},"categories":[14],"tags":[37,28,520,20,69,530,146,231],"class_list":["post-1758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytics","tag-analytics","tag-attribution","tag-campaign-measurement","tag-deep-linking","tag-mobile-development","tag-revenue","tag-saas","tag-subscriptions"],"_links":{"self":[{"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/posts\/1758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/comments?post=1758"}],"version-history":[{"count":3,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/posts\/1758\/revisions"}],"predecessor-version":[{"id":2700,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/posts\/1758\/revisions\/2700"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/media\/1757"}],"wp:attachment":[{"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/media?parent=1758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/categories?post=1758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tolinku.com\/blog\/wp-json\/wp\/v2\/tags?post=1758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}