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App Tracking Transparency (ATT) is Apple's framework for requesting access to a user's IDFA. If you use any of our attribution integrations, this article will explain what you need to do to make your app compliant. What is App Tracking Transparency (ATT)?Starting in iOS 14.5, collecting the IDFA will require permission from the user. This is done by integrating Apple's AppTrackingTransparency framework in your app. How Does ATT Affect RevenueCat?RevenueCat will continue working as expected because RevenueCat doesn't depend on IDFA or collectDeviceIdentifiers to work. However, depending on the integrations or workflows you have, you may need to update your app to ask the user permission to collect the IDFA via collectDeviceIdentifiers. This section will help you figure out whether you need to integrate ATT.If any of the following apply to you, you don't need to integrate ATT:You only use integrations that don't require or rely on IDFA to work, such as Amplitude or Mixpanel. You don't mi

It’s a common issue that comes up on every single analytics platform - in one system you have 3105 active trials, on another, 5046. What’s the deal?These discrepancies are common, and can happen for a variety of reasons. This article covers why you can expect certain discrepancies between RevenueCat's analytics and other platforms, and what you can do if things don't seem right. Common Discrepancies Having a better understanding of how RevenueCat collects data and generates analytics can help a lot when comparing against other platforms. The following are the most common things to consider the vast majority of discrepancies can be attributed to. What is the source?The first thing to ask yourself when comparing analytics systems is to ask yourself, "What is the source of this data?". If the sources are different, then you should expect differences in the data as well. RevenueCat only collects data that is sent through our in-app SDKs or REST API - there's no connection to any other sour

App rejections are an unfortunate and dreaded aspect of launching a new app. It’s bound to happen at some point, and in the case of subscriptions and in-app purchases, it’s usually not something that you or RevenueCat can resolve.RevenueCat can’t contact Apple on your behalf and we can’t expedite the review process, but we can help you troubleshoot the rejection and work toward a resolution.If you’ve read through our docs on rejections and are still having issues, read on. Background / Review EnvironmentUnfortunately, Apple’s sandbox environment is notoriously flaky - there are regular outages and sometimes purchases can get hung up in their system. Most of the time this error is due to sandbox downtime, but you can read about all the causes for this error in our guide on error handling.Even worse is that Apple’s reviewers use this unstable environment for App Review, which can cause issues when the reviewer tests in-app purchases like subscriptions.The App Review team typically doesn’