To delete WhatsApp messages on iPhone permanently, please follow these steps:
1. Open WhatsApp on your iPhone.
2. Go to the chat that contains the message you want to delete.
3. Swipe left on the message you wish to delete. You'll see three options appear: More, Reply, and Copy.
4. Tap on "More."
5. A circle checkbox should appear next to the message, and additional options will appear at the bottom of the screen. Tap on the trash bin icon (Delete) located at the bottom left.
6. You'll be presented with two options: "Delete for Me" and "Delete for Everyone." To permanently delete the message from both your device and the recipient's device, select "Delete for Everyone." Note that this option only works if both you and the recipient have the latest version of WhatsApp installed.
7. Once you select "Delete for Everyone," the message will be permanently deleted from the chat. However, it is important to note that it may still show up in search results due to cache or indexing.
To remove messages from search results:
1. Exit WhatsApp and go to the iPhone's Settings menu.
2. Scroll down and tap on "General."
3. Tap on "iPhone Storage" (or "Storage & iCloud Usage" on older iOS versions).
4. In the list of apps, find WhatsApp and tap on it.
5. Tap on "Offload App" or "Delete App." This will remove WhatsApp from your iPhone.
6. Reinstall WhatsApp from the App Store.
7. During the installation process, you'll be prompted to restore your chat history. Choose to restore your chats.
By offloading and reinstalling WhatsApp, you are clearing the app's cache and any indexed data in the search results, which should prevent the deleted messages from appearing when you search for them.
Remember, if you delete WhatsApp messages on iPhone permanently means that they cannot be recovered. So, make sure to consider this before deleting any important conversations.