Secure Your Android Apps with Password Protection

Our smartphones contain a wealth of personal information, making it crucial to have an extra layer of protection for sensitive data. While screen locks provide some level of security, handing over your phone to someone else can still be unsettling. In such cases, you can protect sensitive apps, such as banking apps, by setting a password to safeguard them. It’s also possible to secure other apps, like messages, photos, and videos. In this article, we will explore various options available for locking apps with passwords on Android devices.

Locking Apps with Passwords

Before we dive into the details, it’s important to understand that protecting an entire app is different from setting a password for specific files or folders. If you want to secure files, folders, pictures, and videos with a password on your Android device, you can refer to our article on how to password protect files and folders. In this article, we will focus on locking complete apps with passwords to restrict access.

Using App Settings

The most effective way to lock apps on Android is to activate the built-in fingerprint lock or PIN protection within the app itself. Many apps support these security features. For example, popular messaging apps like WhatsApp offer additional fingerprint lock options. To enable this feature in the Android app, navigate to “Settings > Account > Privacy > Fingerprint lock.” In this section, you can register your fingerprint and configure settings such as lock timing and content display in notifications. Once enabled, you’ll need to verify your fingerprint or enter a PIN every time you open WhatsApp. Similarly, most banking and credit card apps provide fingerprint and face ID options for added security.

In devices without a home button, you’ll find the option labeled as “Screen Lock,” which allows you to enable face ID for protection. Whether you choose fingerprint or face ID, you can still reply to messages from the notification screen or answer calls while the app remains locked.

Using Third-Party Apps

While many apps offer built-in lock features, they might not provide options for fingerprint, face ID, or PIN protection every time you open the app. Additionally, you may want to protect files, folders, photos, and videos within the app itself. If you’re looking for a single solution to lock everything with a password or pattern, several third-party apps are available for this purpose.

1. AppLock

Considered one of the best apps for locking other apps and hiding photos, AppLock offers comprehensive protection. To get started, download and install AppLock from the Google Play Store. Upon launching the app, you’ll be prompted to set up an unlock pattern and accept the agreement. AppLock will also require necessary permissions to access your files. One of the great features of AppLock is its ability to automatically lock apps, photos, videos, and other important items based on its recommendations. However, you can always add more items to be locked.

The main page of AppLock displays a list of apps on your phone along with their status, indicating whether they are protected or not. A locked sign in front of an item indicates that it is protected, meaning you’ll need to enter the pattern lock to unlock it. By tapping on an item, you can change its status. For example, if Android’s default “Files” folder is not protected in AppLock, you can search for it on the main page and change its status to protect it.

AppLock allows you to protect apps, files, folders, photos, videos, and other items. You can secure the entire “Photos” folder and even the Camera app with AppLock.

2. AppLocker

AppLocker is another popular app for password-protecting items on your Android device. It features a unique fake cover that, when someone tries to open a locked app, displays a screen that simulates an app crash. By long-pressing the “OK” button on the fake screen, AppLocker reveals the actual lock screen, and tapping “OK” returns you to the home screen. AppLocker also offers the “Intruder Selfie” feature, which, when enabled, takes pictures of intruders who attempt to open locked items multiple times. It captures an image after a specified number of incorrect attempts.

To set up AppLocker, install the app and follow the on-screen instructions to configure the unlock pattern for the items on your phone. The app may present a message encouraging you to subscribe to the pro version, but you can cancel this message and continue using the free version, which is sufficient for app locking purposes. After accepting the user agreement and granting the necessary permissions, you’ll see a list of locked and unlocked apps based on recommendations. You can easily lock or unlock apps with a single tap. There is also a convenient toggle button in the upper right corner to quickly enable or disable the entire AppLocker app.

3. Lock Master

Lock Master is an app-locking application that offers additional features such as junk cleaning, phone boosting, and battery saving. It can cool your device, delete duplicate files, clean up WhatsApp data, and provide Wi-Fi security. Lock Master also includes a vault where you can hide your pictures and videos, as well as the ability to clone apps. In addition to taking an intruder selfie, you can hide social media accounts like Facebook, Twitter, and LinkedIn within Lock Master.

After installing Lock Master, launch the app to set up the unlock pattern and grant the necessary permissions. You’ll then have access to its various features and functionalities.

By employing these third-party apps, you can add an extra layer of protection to your sensitive apps and data, ensuring the privacy and security of your Android device.


While using a screen lock on your Android device is essential, adding app locks can provide an additional level of security for apps containing sensitive or personal information. By following the methods outlined in this article, you can safeguard your apps with passwords, PINs, fingerprints, or face ID, depending on the options available. Whether you choose to utilize the built-in security features of specific apps or install third-party apps like AppLock, AppLocker, or Lock Master, it’s crucial to prioritize the protection of your personal data and maintain peace of mind.