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Fact · Voice privacy and security

When Realtime Subtitle uses the Apple Speech engine, its privacy policy says audio may be processed on Apple's servers under Apple's privacy policy. The policy states no retention period and no review rule for Apple.

Quote found word for word on the live source, last checked October 25, 2026

In the source's own words

“音频 可能由 Apple 服务器处理 ,具体受 Apple 隐私政策 约束”

Realtime Subtitle privacy policy (隐私政策), 成渝 向 (developer of Realtime Subtitle), 2026, Section 3.1, 语音识别 (speech recognition).

Open the original
What it measures
The Apple Speech engine is one of two recognition engines the user chooses in settings. The policy presents the WhisperKit engine as fully on-device. The quote is the original Chinese; the claim translates it.
What it does not show
The policy does not say how long Apple keeps audio or whether people at Apple review it. Apple's own privacy policy is the source for that and is not read here.

In the data

A row of How Long Voice Assistants Keep Your Recordings, as Realtime Subtitle, Apple Speech: 音频 可能由 Apple 服务器处理 ,具体受 Apple 隐私政策 约束 days.

Service
Realtime Subtitle
What is kept
Audio recordings
When
Other
Reviewed by people
Not stated
As of
2026-10

Source

Used to calculate