The phone hides the recording, and there is no recording or related hidden recording software in the background?

There are many methods and softwares to hide mobile phone recording. Here are some different ways:

For Apple phones, you can use the pre-installed application Voice Memos to record, and it can also hide the recording. Enter the recording interface, click the button in the upper right corner and check "Hide Recording".

In addition to voice memos, there are other applications that can be used for recording. Such as a recording pen, a quick recording pen and the like. The recording interfaces of these applications are hidden and difficult to find.

For Android phones, you can also use some applications to achieve the effect of hiding the recording. Such as Vault, Hide it Pro and Secret Voice Recorder. These applications can not only hide audio recordings, but also hide photos, videos, files and other functions.

Some of the hidden recording methods mentioned above hide the recording function in the application settings, and some use special icons or menus to hide the recording function. But in any case, these methods are to prevent the recording from being discovered unintentionally or intentionally.