iOS

iOS's Recently Deleted album provides a 30-day retention period as a unified system-level mechanism.

On iOS, an app is typically suspended by the system after entering the background or being locked in order to save power and resources; to keep sensor collection and reminders working while the screen is locked, it generally needs to rely on specific background execution capabilities (such as audio playback or the motion and fitness background mode) and accept the system's constraints on power consumption and runtime duration.

The built-in screen time management features of iOS and Android use a soft blocking mechanism, but the ignore-limit button is simple to operate, so users easily skip past the limit on impulse.

Badgey currently supports only the iOS platform, and Android users cannot use it.

iOS uses the Core Motion framework to fuse raw accelerometer and gyroscope data and output high-level information such as device orientation and gravity direction.

GlossPage currently supports only the iOS platform.

The mobile sandbox mechanism is a security design in which the operating system delineates an independent running space for each app; an app can only access data within its own container, and cross-app reading and writing must go through controlled interfaces provided by the system.

iOS's restrictions on background execution and screen recording make it difficult for computer-use agents to run continuously without the user's awareness.

The iOS sandbox is especially strict, and third-party apps can hardly directly simulate global touch events or read the interface contents of other apps.

The iOS ecosystem has never before had a foldable-form device, so the naming, precision, sampling frequency and privacy permission model of the iPhone Duo's angle sensor API are all unknown.