To stop iPhones from sharing texts, you need to turn off Text Message Forwarding for other devices and manage iCloud Messages/iMessage Settings (Send & Receive, iCloud Sync) on each device, ensuring each phone uses its own Apple ID for text syncing. The key steps involve disabling SMS forwarding on the main phone and signing out of or adjusting message settings on other shared devices to isolate messages to their respective numbers.
You and your wife might be sharing Apple Accounts. Each person should have their own Apple Account, as it links your iCloud data (messages, emails, photos, etc.), Media & Purchases, as well as personal information to your personal devices.
iPhone 13 users often face message syncing across devices and receiving texts on only one phone number. To stop texts from syncing on multiple iPhones sharing the same Apple ID, disable 'Text Message Forwarding' in Settings > Messages.
On your iPhone or iPad, go to the Settings app > Apps > Messages > Shared with You, then turn off Automatic Sharing or turn off Shared with You for a specific app.
Unfortunately, your wife can access your text messages—perhaps through automatic backups, iCloud, or even spyware. Alternatively, she might just be picking up your phone. You can probably tell if she's reading them. Perhaps messages are read when you haven't opened them.
Remove your associated iPhone or iPad
It can get confusing, because sharing an Apple ID with another family member allows them to see your text messages. This is because iMessage is designed to work across all of your Apple devices, like your iPhone, Mac and iPad.
How to hide texts on your iPhone lock screen
Go to the Settings app on your iPhone. Tap Apps, then tap Messages. Tap Text Message Forwarding, then turn on any devices you want to include. If any devices aren't appearing in the list, see the Apple Support article Forward text messages from your iPhone to other devices.
Your iCloud account is a gateway to all your synced data, including text messages. Someone can spy on your messages by: Logging into your iCloud account from another device to view message backups. Using a shared Apple ID (common in families) to receive your iMessages on their device.
Spyware and monitoring apps need elevated permissions to access your SMS messages. You can check whether any apps have permission to see your SMS messages by going to the Permission manager in your Android settings. To check and disable SMS permissions on an Android device: Open Settings > Privacy > Permission manager.
Tracking apps, including parental control apps, are among the most common methods people use to spy on their spouses. These apps can log your activities, track your GPS location, and even pry into your personal conversations, recording both messaging apps and phone calls.
How to separate our Apple IDs and share things explicitly?
The USSD code *#62# is used to check the number your calls are forwarded to when your phone is unreachable—such as when it's off or out of coverage.
How can I deactivate SMS forwarding? Use your carrier's deactivate code (e.g., ##21#) or disable it through your phone settings.