To backup WhatsApp chat history on Android, you can use the built-in "Google Drive" backup feature:
Open WhatsApp and go to "Settings."
Tap "Chats."
Tap "Chat Backup."
Tap "Back Up Now" to start the backup process.
To restore the chat history, you can reinstall WhatsApp and log in with the same phone number. The app will prompt you to restore the chat history from Google Drive during the setup process.
For iOS, you can backup your Fm WhatsApp APK chats to iCloud:
Open WhatsApp and go to "Settings."
Tap "Chats."
Tap "Chat Backup."
Toggle on "Auto Backup."
To restore the chat history, you can reinstall WhatsApp and log in with the same phone number. The app will prompt you to restore the chat history from iCloud during the setup process.