WhatsApp Lock: How to Password Protect WhatsApp on Desktop and Mobile

Rosa Reyes
July 07, 2023 Preview 37.8K Preview 2
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This article mainly talks about WhatsApp desktop password protection. It also shows you how to put a lock on WhatsApp mobile app.

WhatsApp is one of the most popular and widely used instant messaging and VoIP services in the world. It allows users to easily send messages, make calls and share files. WhatsApp is available as a mobile app for iOS and Android devices. It also provides a desktop app for Windows and Mac computers. If you want to use WhatsApp in browser, you can navigate to its web site and then link your phone to your computer.

In the digital age, privacy protection is more important than ever. WhatsApp has taken efforts to protect users’ data. For example, it puts end-to-end encryption on chats and backup data.

What can users do to protect privacy on WhatsApp? You can sign out of the app, but it will be impractical because you probably use WhatsApp on a daily and even hourly basis. Also, you can lock your computer or phone when you are away from it, but sometimes there are situations where you have to let others use your device. There’s a solution! You can lock WhatsApp desktop or mobile app. Let’s look at how to set password for whatsapp desktop and mobile app below.


How to set WhatsApp desktop password protection on Windows PC

Windows doesn’t come with a feature for you to put a password on individual apps. Luckily, there are third-party tools available. You can easily and effectively password protect WhatsApp desktop with Cisdem AppCrypt, the best app locker for Windows.

1. Download and install AppCrypt on your PC.

Free Download Windows 11/10/8/7

2. The first time you open the tool, set a password.

a window asking users to set a password

3. Open File Explorer. On the left, choose This PC. Enter “whatsapp” in the search box, and you will see WhatsApp.exe.

“whatsapp” entered in the search box

4. On the taskbar, click the tool’s icon. If you can’t see it, click the Arrow Up icon first.

the taskbar

5. You will be prompted to enter the password. Enter the password to access the tool’s interface.

a dialog asking for password

6. Drag WhatsApp.exe into the interface. Alternatively, click the Add button to add WhatsApp.exe.

WhatsApp is added

Now the WhatsApp desktop app is locked.

When you or someone else tries to open it, a dialog box will show up asking for password. To unlock WhatsApp, one will need to enter the correct password.

WhatsApp is locked

If one enters the wrong password, WhatsApp will still be locked and secured. And AppCrypt will record this failed attempt, with the date and time.

a list of failed attempts

To remove the lock, go to the tool’s interface (which requires the password), select WhatsApp, and press the Delete key.


As long as AppCrypt is running, it will prevent any unauthorized access to the locked WhatsApp. Here is how to make this tool run all the time. Click Preferences  in the toolbar. Enable Launch at system startup.

the Launch at system startup option in Preferences

There is also an option, which, if enabled, will automatically relock WhatsApp when WhatsApp is unlocked and inactive for a period of time. Enable the option if needed.

You lock WhatsApp for the sake of privacy protection. If you want to lock certain apps during certain hours to reduce distractions or to limit screen time, the Custom Schedule feature can help.

the Custom Schedule feature

the Custom Schedule feature enabled

How to set password for WhatsApp desktop app on Mac

If you are a Mac user who wants to prevent others who can access your Mac from opening your WhatsApp desktop app, you can also use AppCrypt. It’s easy to use with a simple interface. Blow is how to use it to put WhatsApp desktop password lock.

1. Download and install AppCrypt on your Mac.

Free Download macOS 10.12 or later

2. Set a password when you open it for the first time.

set a password

3. Click the lock icon in the top menu bar and choose Open Main Window.

the top menu bar

4. Enter the password.

enter the password

And you will see the main window.

the main window

5. Under the App Lock tab, click the Add button. In the Applications folder that appears, select WhatsApp and click Open. Alternatively, you can use drag and drop.

WhatsApp app is added to lock

It is that easy.

Here are some useful details to know.

There is also a feature to block websites. Choose the Web Block tab in the main window. You can block specific websites/webpages including whatsapp.com on Chrome, Safari, Opera, etc. To unblock WhatsApp website, just click AppCrypt’s icon in the menu bar. Click Disable Web Block and enter the password.

Web Block tab

How to lock WhatsApp on iPhone

The content above is for WhatsApp desktop app. Now let’s talk about the mobile one.

To offer additional security, WhatsApp allows iPhone users to protect its app with Touch ID or Face ID, depending on the iPhone model.

Note: When WhatsApp is locked, if a call comes in, you can still answer it. And you can still reply to messages from notifications.

Touch ID is required to use WhatsApp

  • Models supporting Face ID: iPhone 14 Pro Max, iPhone 14 Pro, iPhone 14 Plus, iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13 mini, iPhone 13, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12 mini, iPhone 12, iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS Max, iPhone XS, iPhone XR and iPhone X
  • Models supporting Touch ID: iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone SE (2016), iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone SE (2020)

To be able to use Touch ID or Face ID for WhatsApp, you need to first set up Touch ID or Face ID in your device’s settings.

1. Open WhatsApp on your iPhone.

2. Tap Settings in the lower right corner of the screen.

3. Go to Privacy > Screen Lock.

WhatsApp screen lock

4. Enable Require Face ID or Require Touch ID.

5. From the three options allowing you to decide how often the WhatsApp lock will ask for fingerprint or face recognition, select the option that suits your need.

enable Require Face ID or Require Touch ID

How to put lock on WhatsApp in Android phone

Before October 2019, there were two ways for Android users to secure WhatsApp app. If your phone provides a built-in feature to lock apps, then you can readily use it. If not, you can use a third-party app locker. On October 31, 2019, WhatsApp introduced fingerprint lock for Android. Note that it’s only for Android devices with a fingerprint sensor running Android 6.0+. And it doesn’t work on certain Samsung models (Samsung Galaxy S5, Samsung Galaxy Note 4, or Samsung Galaxy Note 8).

Also note that the locking doesn’t prevents you from answering a WhatsApp call.

  1. Set up fingerprint on your phone.
  2. Open WhatsApp.
  3. Tap the 3-dot icon and select Settings > Account > Privacy.
  4. Scroll down and tap Fingerprint lock.
  5. Enable Unlock with fingerprint.WhatsApp lock for Android
  6. Confirm your fingerprint by touching the sensor.
  7. Select the amount of time for WhatsApp to automatically be locked by fingerprint.

If you turn on the option Show content in notifications, you will be able to preview messages inside message notifications.

To turn off the fingerprint lock for WhatsApp, go to the app’s settings and turn off Unlock with fingerprint.

Use WhatsApp web? Try this tool to lock it

Above are how to password lock WhatsApp app on desktop and mobile. How about WhatsApp web? Although its web version is limited in some features, some users still used to using it on the web for saving memory or other reasons. Fortunately, there’s a Chrome extension can help you use WhatsApp web safely.

Password Lock for WhatsApp Web allows you to password protect your WhatsApp web account on Chrome browser. Once adding this extension, it’ll prompt you to set a password the next time you visit WhatsApp web. Then the password will be required every time you or other users of this computer try to access WhatsApp web. What’s more, to further protect your privacy, this extension enables you to password lock WhatsApp web instantly. Just click the Chrome extension icon on the top right corner. Tap on this WhatsApp locker extension to activate it quickly.

WhatsApp locker extension


As you can see, it’s easy to apply WhatsApp desktop password protection and mobile app fingerprint locks. By doing so, you can keep your chat, conversations and privacy away from prying eyes. If there isn’t a built-in feature to lock apps, you can turn to third-party solutions such as AppCrypt for Mac. In addition to adding WhatsApp lock, you can also use the same tool to lock other apps on your computer.

Rosa Reyes
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Rosa has worked in Mac software industry for more than eight years. She believes that the purpose of software is to make life better and work more productively. In addition to writing, Rosa is also an avid runner.

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Comments (2) Leave a Reply

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  • Lee

    I had no idea you could lock WhatsApp on desktop and mobile! This is a game changer for me since I'm always worried about someone snooping through my messages. Thanks for the great guide, it was really easy to follow and now I feel much more secure. Cheers!

    0 months ago commonReply

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  • Rubenbowen

    It's nice to be able to securely lock your WhatsApp. Especially when friends,family and who know uses my Mac...

    7 years ago commonReply

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