Click on “Edit” and choose the “Delete Contact” button. Next, go to the Settings app, and scroll down until you see “Messages.” Click on it. Below Message filtering, click on “Filter Unknown Senders” to toggle on the feature.
The answer is affirmative. You can lock or hide messages and even turn off message previews on your device so that your personal information stays private.
How to hide a conversation on Android
Hiding messages will remove chats from view but won't delete them. This is fairly useful for housekeeping purposes as it can clear the app and make room for other chats. The only downside is that once you hide the chat, if someone responds to that chat, you have to find hidden chats to see the message and respond.
You can hide messages on your iPhone by using message filtering.
How to hide messages on iPhone without deleting?
Hide Text Messages Inside the Messages App with HiddenConvos
Open the conversation, tap the profile icon on top, tap Info, and toggle the Hide Alerts option.
Another way to hide messages is by disabling notifications on your iPhone.
Hide an iMessage app: Open a message, go to the three dot menu and choose Edit. Select minus button and choose Remove from Favorites. Hide an app from being seen: Open a message, go to three dot menu and select Edit. Under More Apps toggle off an app and select Done.
How to hide WhatsApp chats on iPhone
First, make sure any apps that you want to hide are stored on a homescreen page you're happy to hide too. Then hold your finger down on the homescreen until your app icons start wiggling. Next, tap on the bubble with dots inside at the bottom of your screen – the one that shows which page you're on.
On the home screen, long-tap an empty space and tap on Home screen settings. Scroll down and tap on Hide apps. Select the apps that you want to hide and tap on Apply. Tip: You can also use the Secure Folder in Samsung phones to hide the apps.