There are third-party audio and voice recording apps with features that make secret recordings easier, but that just means another app on your iPhone. Don't Miss: Use Your iPhone to Hear the World Around You Better, Spy on Conversations, Troubleshoot Weird Sounds & More.But that's not enough to remain unnoticed. When you finally start a recording, you can turn off the display, and it'll still record, so at least there's that. No matter which of those methods you use, somebody will likely spot you trying to secretly record a conversation since you have to fumble around with your iPhone. You could even ask Siri, but it will only open Voice Memos for you, not start a recording, so you would have to hit record yourself, then stop. If you've added the Voice Memos control to Control Center, you could long-press it and tap 'New Recording,' then tap stop in the app. Typically, to make an audio recording in Voice Memos, you open the app, hit record, and then tap the stop button to save. But if your goal is to record audio on the down-low without being noticed, you'll need to know the hidden shortcut. Your iPhone's built-in Voice Memos app is a great way to record the audio around you, whether it be conversations, lectures, meetings, interviews, discussions, chitchat, gossip, or other kinds of talks.

Voice recorder app store