You can only recover the messages and conversations you've deleted within the last 30 to 40 days. If you delete a message before you update to iOS 16, iPadOS 16, or later, you can't recover that message.
Deleting and recovering messages changes only your own Messages conversations, not those of your recipients. You can restore messages you deleted for up to 30 days. In the Messages conversation list, do one of the following: Tap Edit in the top-left corner, then tap Show Recently Deleted.
An iPhone with iOS 16 or later saves messages you delete in the Recently Deleted folder for 30 days. You can restore the conversations you need in a few clicks. Older iOS versions don't have this feature. However, if you make backups (for example, iCloud), your SMS are saved there.
Clearing or deleting your messages on your devices doesn't mean the data is permanently gone, it's just been filed away differently.
In a message conversation, touch and hold the message bubble or attachment that you want to delete. Tap More. Tap Delete , then tap Delete Message. If you want to delete all messages in the thread tap Delete All, in the upper-left corner.
To permanently remove a message, tap Edit (or Filters) in the top-left corner, tap Show Recently Deleted (or Recently Deleted), select the messages or conversations you want to remove, tap Delete, then follow the onscreen instructions.
With iCloud for Messages enabled, any messages deleted from the iPhone are deleted from iCloud as well. So yes, after 30 days the messages in iCloud will be deleted if they are deleted from the iPhone. We hope this helps you. Take care and stay safe.
Text messages hang around after you delete them because of how the iPhone deletes data. When you delete some kinds of items from the iPhone, they aren't removed. Instead, they're marked for deletion by the operating system and hidden so they appear to be gone, but they're still on the phone.
So, can police recover deleted pictures, texts, and files from a phone? The answer is yes—by using special tools, they can find data that hasn't been overwritten yet. And these days, encryption isn't quite the silver bullet solution it once was.
You can only recover messages and conversations that you deleted within the last 30 to 40 days.
Restore Texts from a Wireless Backup
If you are currently using a wireless backup service, check when the last backup was made. If the most recent backup was made before you accidentally deleted the texts, you can restore that backup to your phone and the text messages will be restored to your phone as well.
How long do deleted text messages stay in iCloud? Normally your deleted text messages will be kept for 30 days.
When you set up iCloud for Messages, your messages are stored in the cloud instead of locally on your device. You can see them on any device that's set up for iCloud and Messages, including your iPhone, iPad, iPod touch, and Mac.
If you enable Messages in the iCloud feature, when you delete a message, it will instantly delete from all your Apple devices that use the same iCloud and Apple ID. But if you have backed up your iPhone before you deleted the text messages, the messages will still stay in the iCloud backup.
For Android
Google Drive is one simple and effective way to recover deleted text messages on Android without a computer. But you can only recover via Google Drive if you have taken the time to back up your data in Google drive, including your text messages.
Deleted texts are stored on the internal memory of Android phones and are usually permanently deleted after a certain amount of time, that is if your child doesn't regularly clean their phone's recycle bin. You might be able to restore deleted texts by going to Messages > Recycle Bin on your child's phone.
When you delete a message on Android can the other person still see it? Yes, the other person can still see the message if they have not deleted it from their end.
You can delete individual texts or conversations within your messaging app. For individual Android texts: Hover over the text you want to delete within the conversation. Select the trash can icon in the top right corner to delete.
Deleting Individual Messages
Now tap and hold your finger on the text you want to delete, and the message will highlight itself. An action bar will appear at the top of the display, and tapping the garbage can icon in the top-right corner of your display will erase the message.
When you delete a message, it's saved in your Trash for 30 days, after which it's permanently erased. When you delete an email from iCloud.com, it's deleted on all your devices that have Mail turned on in iCloud settings. You can also change where your deleted messages are stored.
Messages in iCloud are updated automatically, so you always have the same view everywhere you use iMessage. When you delete a message, photo, or conversation on one device, it's removed from all of your devices. And since all of your attachments are stored in iCloud, you can save space on your device.”