How to Lock Apps on Mac, iPhone and Android

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Method 2: Lock Apps on Mac via Built-in Disk Utility

The second way you can try is having your data protected with a inside lock that can only be opened by you or by someone who knows the password.

Step 1. Type in Disk Utility in the Spotlight Search. And double-click to open it.

Step 2. Click File > New Image > Image from Folder.

Step 3. Select the app folder you want to lock and click the choose button.

You can see in the photo as below. Only the apps in folder state can be selected. That means, you must keep you app in folder then can use this way to lock your app successfully.

Step 4. A new window will pop up. When you set up your choices, click Save button. Then the app folder will be locked well.

Click the down arrow from Encryption to choose a suitable encryption way.

 

Part 3. How to Lock Apps on iPhone

1. Enable Guided Access to feature your iPhone

There is a built-in feature which named Guided Access, allows you to lock apps on iPhone. You can enable this feature on your iPhone with following the steps below:

Step 1. Launch the Settings app on your iPhone and tap on general.

Step 2. Tap on Accessibility, scroll down and choose Guided Access under the Learning section.

Step 3. Tap to turn on Guided Access.

Step 4. Tap on Passcode Settings and set a passcode for Guided Access.

2. Start to lock Apps on iPhone with Guided Access:

Step 1. Launch the App which you want to lock. In this case, we used Camera.

Step 2. Triple click the Home button to Start Guided Access and lock Camera App.

Step 3. Tap on Start at the top of the screen.

Step 4. Tap on Start at top right corner of the screen to begin Guided Access.

This is it! Now, you are safe to hand over your Mac and iPhone to your kids, friends or with whom you are not comfortable to share apps.

Part 4. How to Lock Apps on Android

There are various kinds of screen locks for Android, such as PIN, password, pattern, etc., which can help you lock Android phone well. But it is too troublesome to unlock the Android every time when you go to use the phone. So if you want to protect your important apps, you can use an app name Smart App Protector to lock apps on Android.

Step 1. Download Smart App Protector from Google Play Store and install it on your Android phone.

Step 2. Launch the program. It will require you to install a Smart App Protector helper that ensures the major app service wouldn’t be killed by third party apps.

Step 3. The original password is 7777, but you are able to change it in app Settings.

Step 4. Next, come to Running tab. Click ADD button and choose apps that you need to lock from the pop out list. Click ADD button again.

Step 5. Finally, check whether the app has been locked on Android or not.

Conclusion

To lock app is necessary if you want to prevent your private information from leaking or you don’t want others to visit a certain app in your device. Hope the ways above can help you solve your problems with success.

For iPhone and Android phone user, we can use the bulid-in or free app to lock our privacy well.

For MAC user, even the build-in free Disk Utility can lock app, but it has limit only for the app on folder state. With the AppCrypt, you can easily lock the apps and block the distracted websites. Download to make a free trial now.