To hide App, you will have to moved those Apps into secure folder.
Step 1: Open Secure Folder.
Step 2: Tap Add Apps or the + symbol
Step 3: Select the apps you want to add. You can also download apps directly into the Secure Folder by tapping “Download from Play Store”
Step 4: Tap Add
How to Lock Apps
To lock App
Step 1: Download App Lock from the Google Play Store
Step 2: Launch the app and set a pattern lock
Step 3: Now configure an E-Mail ID for security and backup purposes.
Step 4: Under the Privacy tab, you can find a list of apps installed. You can select any one of them to lock.
Step 5: Done. Now whenever you open the app you have locked using AppLock, you will be asked for a password to unlock it.
Step 6: You can also unlock it using your fingerprint.