--- title: "Apple iOS 14.5: AppTrackingTransparency Requirements" description: Apple has released iOS 14.5, making IDFA opt-in only. Pixalate’s opinion is that all app developers will implement the AppTrackingTransparency framework or risk being delisted from the App Store. image: https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/ios-idfa-ad-fraud-protection-faqs.png --- [![pixalate-full-logo](https://www.pixalate.com/hs-fs/hubfs/Pixalate_Logos/pixalate-full-logo.jpg?width=150&height=60&name=pixalate-full-logo.jpg "pixalate-full-logo")](https://www.pixalate.com) Search **Menu** ** ** ![](https://www.pixalate.com/hubfs/Blog_Media/Blog%20photos/ios-idfa-ad-fraud-protection-faqs.png) [Mobile](https://www.pixalate.com/blog/topic/mobile) | [Thought Leadership](https://www.pixalate.com/blog/topic/thought-leadership) | [Privacy](https://www.pixalate.com/blog/topic/privacy) | 1 min read # Apple iOS 14.5: AppTrackingTransparency Requirements Written by [Pixalate](https://www.pixalate.com/blog/author/pixalate) Apr 28, 2021 2:00:00 PM Apple has released [iOS 14.5](https://developer.apple.com/news/?id=ecvrtzt2), making IDFA opt-in only. According to Apple: > With the upcoming public release of iOS 14.5, iPadOS 14.5, and tvOS 14.5, all apps must use the AppTrackingTransparency framework to request the user’s permission to track them or to access their device's advertising identifier. Unless you receive permission from the user to enable tracking, the device's advertising identifier value will be all zeros and you may not track them. Pixalate’s opinion is that all app developers will implement the AppTrackingTransparency framework or risk being delisted from the App Store and ask for the required permissions to track a user’s device advertising identifier. According to a recent “Apple IDFA Survey,” as reported in [Forbes](https://www.forbes.com/sites/johnkoetsier/2021/03/09/apple-idfa-survey-385-will-allow-mobile-apps-to-track-them-in-ios-14-and-google-is-the-most-trusted-big-tech-company/?sh=714bcbd02f99), only 38% of iOS users are expected to opt-in. However, this is still an open question, and we are waiting to see what the actual numbers of adoption will be. Pixalate has been working on providing different methods for alternative ID capture. Our key-value pair (KV) parameters can capture alternative IDs in our tags, such as an SDK user ID and [IDFV](https://developer.apple.com/documentation/uikit/uidevice/1620059-identifierforvendor), when available.  Pixalate plans to incorporate these IDs in our products, to mitigate the impact of reduced IDFA visibility. These IDs can be viable supplements to additional data we collect (e.g., IPv6) to better approximate the same user/device in our global data pool. [View our FAQ for more details.](https://www.pixalate.com/blog/ios-idfa-ad-fraud-protection-faqs) We will update this blog post as new data is available. ### Search Blog Search ### Follow Pixalate ### Subscribe to our blog *By entering your email address and clicking Subscribe, you are agreeing to our [Terms of Use ](https://www.pixalate.com/terms)and [Privacy Policy.](https://www.pixalate.com/privacypolicy) Previous Story [← Google leading in CTV: Most popular SSP among top 500 Roku apps](https://www.pixalate.com/blog/ctv-roku-app-ads-txt-adoption-2020-0) [** ](https://www.pixalate.com/blog) Next Story [Pixalate Week in Review: April 26 - 30, 2021 →](https://www.pixalate.com/blog/programmatic-ad-fraud-news-april-30-2021) ## You May Also Like These Stories on Mobile [![](https://www.pixalate.com/hubfs/Blog%20Media/2026%20Covers%20and%20Images/OpenEPG%20landing%20page%20hero%20image.png) ](https://www.pixalate.com/blog/pixalate-launches-openepg-1.0-analytics-to-bring-linear-tv-grade-measurement-verification-to-open-programmatic-ctv) [Mobile](https://www.pixalate.com/blog/topic/mobile) ### [Pixalate Launches OpenEPG™ 1.0 Analytics to Bring Linear TV-Grade Measurement & Verification to Open Programmatic CTV; 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