Apple Developers Required to Justify Use of Some APIs in Latest Move to Boost Privacy

In an effort to bolster user privacy, developers will need to justify their use of certain Apple APIs before their apps can be listed on the App Store, according to a new article on the Apple developer website spotted by 9to5Mac.

iOS App Store General Feature Desaturated
The Apple Developer website now lists some APIs as "Required Reason APIs," meaning that developers have to clarify why they are using them in their privacy manifest. Some commonly used APIs, such as UserDefaults, which stores user preferences, now fall under the Required Reason category.

With the launch of watchOS 10, iOS 17, iPadOS 17, tvOS 17, and macOS Sonoma later this year, developers will receive a warning if they submit apps using a Required Reason API without specifying its usage. From spring 2024, any apps using these APIs without a legitimate justification will be rejected in the review process.

Apple explains that main reason for this change is to curb fingerprinting, a method used to track users across different apps and websites. Fingerprinting uses API calls to gather details about a user's device, such as screen resolution, model, and operating system. This data is then used to create a unique "fingerprint," enabling the user to be identified across various apps or websites.

According to Apple, Required Reason APIs will guarantee that apps only employ these APIs for their prescribed use. In the event of a rejection, Apple will permit developers to contest the decision and submit a request for approval if their case does not fit within the existing guidelines. See the Apple Developer website for more information.

Popular Stories

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...
Apple TV 4K hero 221018 feature

Here is Everything New for the Apple TV in the tvOS 18.3 Update So Far

Tuesday December 17, 2024 6:25 am PST by
Apple on Monday seeded the first tvOS 18.3 beta to developers for testing. The update will likely be released in January. So far, there are only minor changes for the Apple TV, with one new feature and a few code changes discovered. Below, we outline what is new in tvOS 18.3 so far. Robot Vacuum Support in Home App First, tvOS 18.3 will add robot vacuum support to the Home app on the...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
iPhone 17 Slim Feature

'iPhone 17 Air' With 'Major' Design Changes and 19-Inch MacBook Detailed in New Report

Sunday December 15, 2024 9:47 am PST by
Apple is planning a series of "major design" and "format changes" for iPhones over the next few years, according to The Wall Street Journal's Aaron Tilley and Yang Jie. The paywalled report published today corroborated the widely-rumored "iPhone 17 Air" with an "ultrathin" design that is thinner than current iPhone models. The report did not mention a specific measurement, but previous...

Top Rated Comments

fatTribble Avatar
18 months ago
I applaud efforts like these from Apple. Anything to enhance privacy for end users is a win in my book. ???
Score: 29 Votes (Like | Disagree)
George Bailey Avatar
18 months ago

As a developer I can't tell you how much of a pain this is going to be.
As a developer I don't see this being much of a hindrance. I already justify my code by writing comments.

I can't really see someone thinking "Wait, I have to justify my code? That's outrageous!"
Score: 27 Votes (Like | Disagree)
dominiongamma Avatar
18 months ago

As a developer I don't see this being much of a hindrance. I already justify my code by writing comments.

I can't really see someone thinking "Wait, I have to justify my code? That's outrageous!"
I like your attitude towards it, instead of “oh it’s going to be a pain” which gives me little faith in a developer to protect my privacy because it’s too inconvenient for them
Score: 25 Votes (Like | Disagree)
Zc456 Avatar
18 months ago
I can already hear Zuck yelling in frustration from within Facebook HQ.
Score: 22 Votes (Like | Disagree)
fatTribble Avatar
18 months ago

Good for privacy reason, however how much apps will slip through QC and checks? Many stories how fraudulent apps slipped through. The Apple App Store was once the example of quality apps compared to it's Android counterpart. Now it just feels like Android Junk.
Any gaps in QC can be improved over time. Because they potentially don’t catch everything doesn’t mean they should just give up.
Score: 14 Votes (Like | Disagree)
zahuh Avatar
18 months ago
As a developer I can't tell you how much of a pain this is going to be. As a consumer, it's not going to stop me from downloading an app but I guess good to know.
Score: 13 Votes (Like | Disagree)