Samsung Messages vs Google Messages: Privacy & Locking

Samsung Messages and Google Messages both offer end-to-end encryption (E2EE) for one-to-one chats, but only when both people use the same app and the default SMS/RCS protocol is active. The key privacy difference is that Google Messages encrypts RCS chats by default, while Samsung Messages only offers E2EE for RCS when it is set as the default messaging app on a Samsung phone. For locking, neither app has a built-in app lock, but Samsung Messages can be locked using Samsung’s Secure Folder, while Google Messages relies on the phone’s built-in screen lock or third-party app lockers.

Background: The Two Default Messaging Apps

Samsung Messages has been the pre-installed SMS/RCS app on Galaxy phones for years, offering a familiar interface and deep integration with Samsung’s One UI. Google Messages is Google’s own SMS/RCS app, which has become the default on Pixel phones and many other Android devices. Since 2023, Samsung has begun pre-installing Google Messages as the default on some Galaxy devices, but Samsung Messages remains available and is still the default on many older or budget models. Both apps support RCS (Rich Communication Services), the modern protocol that replaces SMS/MMS with features like read receipts, typing indicators, and higher-quality media.

How Privacy Features Compare

The core privacy feature in both apps is end-to-end encryption, which ensures that only the sender and receiver can read messages. Here is how each app handles it:

• Google Messages: E2EE is automatically enabled for all RCS chats between Google Messages users. This includes one-on-one conversations and, as of 2024, group chats. The encryption is based on the Signal protocol, and no one, not even Google, can read the messages.
• Samsung Messages: E2EE is only available when the app is set as the default messaging app on a Samsung device. When it is, RCS chats between two Samsung Messages users are encrypted. However, if you are using Samsung Messages on a non-Samsung phone (which is rare) or if the app is not the default, RCS encryption is not offered.

Both apps also offer the ability to delete messages, but only Google Messages has a built-in “delete for everyone” feature that removes a message from both sides. Samsung Messages does not have this feature, so you can only delete messages from your own device.

Message Locking Options: What Each App Offers

Neither app has a built-in “lock” for individual conversations, but there are workarounds:

• Samsung Messages: You can move conversations into Samsung’s Secure Folder, which is a separate, password-protected space on Galaxy phones. To do this, long-press a conversation, select “Move to Secure Folder,” and the chat will be hidden from the main app. The Secure Folder requires a PIN, pattern, or biometric authentication to open.
• Google Messages: There is no built-in lock or hidden folder. The only way to lock the app is to use the phone’s screen lock (e.g., fingerprint or PIN) and set the phone to lock immediately when the screen turns off. Some third-party app lockers can also be used, but they may conflict with notifications or accessibility settings.

For both apps, you can also disable message previews on the lock screen to keep content private, but this does not lock the app itself.

Common Problems and Misconceptions

A common misconception is that SMS messages are encrypted. They are not. SMS (Short Message Service) is a plain-text protocol that can be intercepted by carriers or law enforcement. RCS encryption only applies when both users have RCS enabled and are using the same app. If you send an SMS to a non-RCS user, it is not encrypted.

Another problem is that Samsung Messages may not offer E2EE if the user has not set it as the default app. On some Galaxy phones, Samsung Messages is pre-installed but Google Messages is the default, so users may think they are using Samsung Messages when they are not. To check, go to Settings > Apps > Choose default apps > SMS app.

Also, if you switch from Samsung Messages to Google Messages, your chat history does not automatically transfer. You can use Samsung Smart Switch to move messages, but RCS encryption keys are not transferred, so old chats may not be readable in the new app.

How to Choose Between the Two

The choice depends on your priorities:

• Choose Google Messages if: you want default E2EE for all RCS chats, you have a Pixel or a phone where Google Messages is the default, or you want the “delete for everyone” feature.
• Choose Samsung Messages if: you are deeply integrated into the Samsung ecosystem, you want the Secure Folder lock, or you prefer the One UI look and feel. However, be aware that E2EE is only available when it is the default app.
• If you value privacy above all: Google Messages is the safer choice because it encrypts RCS by default, even if you do not change any settings.

You can also use both apps on the same phone, but only one can be the default for SMS/RCS. The other can still receive messages if you manually open it, but it will not receive notifications for incoming messages unless it is the default.

Safety and Security Considerations

Beyond encryption, consider these safety aspects:

• Backups: Both apps back up your messages to the cloud (Google Drive for Google Messages, Samsung Cloud for Samsung Messages). These backups are not end-to-end encrypted, meaning the service provider can technically access them. If you want full privacy, disable cloud backups.
• Metadata: Even with E2EE, your carrier can see that you sent a message, the timestamp, and the recipient’s phone number. This metadata is not encrypted.
• Phishing: Both apps allow you to report spam and block numbers, but they do not filter all malicious links. Be cautious of unknown senders.

Frequently Asked Questions

Can I lock individual conversations in Google Messages?

No, Google Messages does not have a built-in feature to lock individual conversations. You can only lock the entire app using the phone’s screen lock or a third-party app locker. Samsung Messages allows you to move conversations to Secure Folder, which acts as a lock.

Is Samsung Messages more private than Google Messages?

Not necessarily. Samsung Messages offers E2EE only when it is the default app and both users are on Samsung Messages. Google Messages offers E2EE by default for all RCS chats. So in most real-world scenarios, Google Messages is more private because encryption is automatic.

Are SMS messages encrypted?

No, SMS messages are not encrypted. They are sent in plain text and can be read by your carrier or anyone who intercepts them. RCS messages are encrypted only when both users have RCS enabled and are using the same app that supports E2EE.

What happens to my messages if I switch from Samsung Messages to Google Messages?

Your SMS/MMS messages can be transferred using Samsung Smart Switch, but RCS chat history may not transfer completely. Also, encryption keys are not transferred, so old RCS chats may not be readable in the new app. It is recommended to back up important conversations before switching.

Does Google Messages have a secret mode?

No, Google Messages does not have a secret or incognito mode. The only way to hide conversations is to use the phone’s screen lock or a third-party app locker. Samsung Messages has a “Private mode” that hides Secure Folder content, but it is not a full secret mode.

Can I use both apps at the same time?

Yes, you can install both apps on the same phone, but only one can be the default for SMS/RCS. The non-default app can still be used to send and receive messages, but you will not receive notifications for incoming messages unless you open the app manually.

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