iPhone 13 Pro series models are equipped with ProMotion display technology, which can achieve an adaptive refresh rate from 10Hz to 120Hz. Apple said that the adaptive refresh rate of ProMotion technology is ideal for scrolling through content, games, etc., and can bring a smoother viewing experience.
However, according to MacRumors reports, App Store developers found that most application animations are limited to 60Hz, which leads to a very uneven viewing experience for users. 9to5Mac also reported that ProMotion works at a full 120Hz when scrolling and full-screen conversion, but the animation effect is limited to 60Hz.
On the iPad Pro, which also supports ProMotion technology, there is no limitation. All animations are presented at 120Hz.
Regarding the above issues, Apple has made clarifications and explanations:
All third-party apps will soon be able to take full advantage of the 120Hz ProMotion refresh rate.
Apple said that all third-party applications can take full advantage of the 120Hz ProMotion refresh rate, but developers need to add an entry to the application’s Plist. The required plist entry documentation will be provided to developers soon.
Apple requires this measure to provide a higher refresh rate only to applications that will benefit from the technology, which will optimize the battery life of the iPhone 13 Pro and Pro Max.
There is also a bug that affects animations built with Core Animation, and Apple said it will fix the problem in the upcoming firmware.
As the developers found, the standard UI animations of third-party applications will automatically be used in conjunction with ProMotion display technology, which is suitable for all applications. Applications that can benefit from faster frame rates will be able to add this support.
Currently, since the related support is limited to standard animation, there may be significant differences between interactions such as scrolling and closing pop-up windows. As developers fully support ProMotion functionality in the future, this issue will be resolved.
iPhone 13 Pro and iPhone 13 Pro Max adopt Super Retina XDR displays that support ProMotion adaptive refresh rate technology, and support an adaptive refresh rate range from 10 Hz to 120 Hz, which can provide high frame rates when the user needs them, and Save power when necessary and extend battery life.
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