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These apps allow you to send messages – to other app users only – that are not only secure but that also allow you to recall unread messages, wipe already read messages and even send messages that will automatically delete themselves after a set amount of time. There are alternatives to using Apple's built in text-messaging system, including secure messaging apps available on Apple's app store such as Threema (see Resources). This feature also doubles as an "Edit" button for your messages, with an option to make a change to the text also shown in the menu. However, it's important to keep in mind that you can only undo the message within 15 minutes of initially sending it.
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Then choose "Undo Send" from the options that appear and the message will be unsent for everyone. Simply tap and hold on the message you want to unsend, and wait for the options menu to appear before you release. With iOS 16, you can unsend a message through the screen with your chat. How to Unsend an iMessage (iOS 16 and Later) However, on older versions you cannot unsend an iMessage. Apple has announced that iOS 16 will include functionality to edit and delete messages, with an expected release date of fall 2022. This gives you the ability to tell if a message has been delivered and even to see if it has been read. SMS/MMS messages go through your cellular provider’s network, so Apple cannot control what happens to these messages once they have been sent.Unlike an SMS message, iMessages do not use the cell tower network at all, instead hooking into your Wi-Fi or cellular data network and sending the message using your data instead. The option to unsend a message won’t even appear on an SMS message to an android phone. You are notified that the recipient may still see the original message. If the recipient is using an older iOS version on their iPhone, the message will remain on the recipient’s phone.
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It does not work on earlier iOS versions. This only works if the recipient has an iPhone with iOS 16.
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