Identifier for Advertisers (IDFA)
What is Apple's Identifier for Advertisers (IDFA)? Get the full definition and learn more about the mobile growth realm with Storemaven's glossary.
What is Apple’s Identifier for Advertisers (IDFA)?
Simply put – IDFA is a unique Apple ID each mobile device has. The Identifier For Advertisers, better known as an IDFA, is (according to Apple) – “an alphanumeric string that’s unique to each device…”.
App marketers use IDFAs for advertising tasks, like tracking conversions, estimating unique users, and attributing sales.
It’s important to understand that, while Apple’s IDFAs give advertisers data regarding the behavior of App Store users, they do not reveal personal user information.
Why Are Identifier for Advertisers Important?
IDFAs are important because they allow advertisers to learn about their target audiences and the way said audiences interact with marketing campaigns. This information can then be used to craft better, more engaging ads that result in more installs, revenue, and success.
Note: The Android equivalent to Apple’s IDFA is known as a Google Advertising ID (GAID).
Navigate between the letters to explore additional glossary terms:
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- User Segmentation
- User Acquisition for Mobile Apps
- Paid App User Acquisition
- Organic User Acquisition
- Explorative Users
- Decisive Users
- App Store Update
- Supply Side Platform
- Software Development Kit (SDK)
- Soft Launch
- SKAdNetwork
- Sessions Per Active Device
- Sales Per Paying User
- Google Play Search
- Apple Search Ads
- App Store Subtitle
- App Store Seasonality
- App Store Search
- App Store Screenshots
- App Store Screenshot View Rate
- App Store Sales
- App Store Analytics: Standard Downloads
- App Store Analytics: Source Type
- App Store Analytics: App Store Sessions
- App Size
- Rewarded Video Ads
- Return on Ad spend (ROAS)
- Replicated App Store Page
- Real-Time Bidding (RTB)
- Re-engagement
- Google Play Third-party Referral
- Google Play Ranking
- App Store Web Referral
- App Store Reviews
- App Store Review Engagement Rate
- App Store Redownloads
- App Store Ratings
- App Store Ranking
- App Store App Referral
- App Store Analytics: Region
- App Retention Rate
- Product Page Conversion Rate
- Proceeds Per Paying Users
- Preloaded Apps
- Pre/Post App Store Tests
- Post-Install Event
- Playable Mobile Ads
- Performance Marketing
- Pay Per Install
- Google Play Product Page
- Google Play Personalization
- Apple’s Product Page Optimization (PPO)
- App Store Product Page Views (Unique Devices)
- App Store Product Page Views
- App Store Product Page
- App Store Proceeds
- App Store Preview Videos
- App Store Pre-Orders
- App Store Pre-Launch
- App Store Personalization
- App Store Paying Users
- App Store Page Scroll Rate
- App Store Analytics: Purchasable Item
- App Store Analytics: Product Page
- App Store Analytics: Pre Orders
- App Store Analytics: Platform Version
- App Store Analytics: Page Type
- Monthly Active Users (MAU)
- Mobile Growth
- Mobile Game Monetization
- Mobile Game Marketing
- Mobile Game Business Model
- Mobile Delivery Platform
- Mobile Bid Adjustment
- Mobile Attribution Window
- Mobile Attribution Manipulation
- Mobile App Retention
- Mobile App Onboarding
- Mobile App Monetization
- Mobile App Advertising
- Mobile Ad Viewability
- Mobile Ad Fraud
- Mobile App Growth
- Average Revenue Per Paying User (ARPPU)
- Average Revenue Per Daily Engaged User (ARPDEU)
- Average Revenue Per Daily Active User (ARPDAU)
- Attribution
- ARPU – Average Revenue Per User
- Apple Arcade
- Apple App Store Connect
- App Store Optimization (ASO)
- App Store Audience Testing
- App Store Analytics: App Version
- App Store Analytics: App Store Active Devices
- App Store Analytics: App Referrer
- App Store Analytics: Active In Last 30 Days
- App Store Acquisition Channels
- App Store A/B testing
- Ad Unit
- Ad Server
- Ad Revenue
- Ad Network
- Ad Mediation
- Ad Impression
- Ad Exchange
- A/B Testing Statistics
- Keyword Localization
- K-Factor
- Google Play Keywords
- App Store Keywords Research
- App Store Keywords
- App Store and Google Play Keywords Optimization
- Interstitial Ads
- Interactive Ads
- Installs Per Mille (IPM)
- In-App Events
- In-App Bidding
- In-App Advertising
- App Store In-App Purchases
- App Store Impressions (Unique Devices)
- App Store Impressions
- App Store Icon
- App Store Analytics: Installations
- App Install Rates
- App Influencer Marketing
- Growth Loop
- Google Play Points
- Google Play Pass
- Google Play Experiments
- Google Play Developer Console
- Google Advertising ID (GAID)
- Gametech (Game Technology)
- Game Bundles
- Google Play Short Description
- Google Play Long Description
- Deep Linking
- Daily Active Users (DAU)
- App Store Description Read Rate
- App Store App Description
- App Store Analytics: Device
- App Store Analytics: App Store Deletions
- App Store Analytics: App Download Date
- Google Play Creatives
- CTR (Click Through Rate)
- Cross Promotion
- Cost Per View (CPV)
- Cost Per Mille (CPM)
- Cost per Install
- Cost Per Engagement (CPE)
- Cost Per Completed View (CPCV)
- Cost Per Click (CPC)
- Cost Per Action (CPA)
- Churn Rate
- Casual Games
- Apple’s Custom Product Pages
- App Store Culturalization
- App Store Creatives
- App Store Conversion Rate
- App Store Categories
- App Store Analytics: Campaign
- App Store Analytics: App Store Crashes
- App Conversion Rate
- App Clip Sessions
- App Clip Installations
- App Clip Crashes
- App Clip Card Views (Unique)
- App Clip Card Views
- App Clip Active Devices
Related Terms
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Google Advertising ID (GAID)
What is GAID (Google Advertising ID)? Get the full definition and learn more about the mobile growth realm with Storemaven's glossary.
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Interstitial Ads
What is an Interstitial Ad? Get the full definition and learn more about the mobile growth realm with Storemaven's glossary.
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Interactive Ads
What is Interactive Advertising? Get the full definition and learn more about the mobile growth realm with Storemaven's glossary.
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