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Apple Adds Motion-Data Restriction in iOS 27.2 to Curb Shake-to-Jump Ads

Apple released iOS 27.2 with a Restrict Motion Data setting that lets users block selected apps from reading gyroscope and accelerometer data, targeting shake-to-jump splash ads. Ifanr tests found most apps stopped responding, though one app could still occasionally trigger.

AI News Feed · 2026-10-28 12:27

The setting is found under Settings, Privacy & Security, Motion & Fitness, then Restrict Motion Data. Users tap Edit in the upper right corner and select the apps they want to block. Ifanr reported that listed apps are denied sensor data at the system level. The ad image can remain, but shaking no longer triggers a jump.

In tests, before the setting was enabled, normal hand lifts or light shakes caused some splash ads to open Taobao in less than half a second. After adding apps to the list, some still showed a “shake phone or tap to learn more” prompt but did not respond to vigorous shaking and ended after the five-second countdown on the app’s home page. Other apps stopped loading the shake icon and fell back to static splash ads, which Ifanr said may depend on each advertising SDK’s backup strategy.

Baidu Netdisk was an exception. Ifanr said its shake ad could still be triggered with very low probability in repeated tests, possibly because its jump mechanism uses other logic beyond gyroscope and accelerometer data.

The toggle is not tied to hardware region, but it appears only when the user is signed in with a mainland China Apple ID. If the App Store account is switched to the U.S. or Hong Kong, the setting entry disappears, Ifanr reported.

Ifanr cautioned that the block is global for each selected app. Apps that rely on motion sensors in normal use, such as Baidu Maps or Amap for walking navigation, Keep for motion counting, or Game for Peace for gyroscope-assisted aiming, may be affected. It recommended adding an app only after a user encounters a shake ad.

The shake-to-jump ad format spread after Chinese regulators in 2021 cracked down on splash ads with tiny skip buttons and full-screen text prompts. Ad platforms turned to motion sensors, which apps could read without a permission pop-up, and the format became standard around Double 11 that year, according to Ifanr. Industry standards later set a trigger threshold of no less than 15 m/s² and a rotation angle above 35 degrees, but many apps used more sensitive triggers, Ifanr said.

Chinese Android vendors began adding similar controls around 2023, some with a “deny only during splash” option that releases sensor access inside the app, avoiding navigation disruptions, Ifanr reported. The iOS 27.2 move brings Apple’s system-level control into the same fight, albeit later.