Ultra Lock

Ultra Lock Ultra Lock is a full-featured app locker for Android, letting you secure apps with dynamic PINs based on time, date, month, or battery level, plus intruder photo detection for stronger privacy.

Ultra Lock

Ultra Lock is a full-featured app lock tool. You can protect apps with PIN codes or passwords, using different input styles. If you want something more dynamic, Ultra Lock lets you create a screen lock PIN using the current time on your device—so the time you see becomes the password for unlocking.

It’s designed to improve privacy and also includes a range of combination-based PIN options using time, minutes, date, month, and even battery level. Examples include minute + date, month + minute, hour + date, minute + battery level, and more.

Why Ultra Lock Stands Out

Ultra Lock differentiates itself from many other app lockers by using lock styles that make guessing your PIN or pattern much harder.

• Hours & Minutes PIN: creates a lock code that changes every minute. Since the PIN is based on the current hour and minute, you don’t have to memorize a single static number.



• Date & Month PIN: a more predictable option that still changes daily. The PIN follows the current date and month, giving you a daily rotating code.
• Battery PIN: generates the unlock PIN based on your device’s current battery level—adding a creative, harder-to-predict twist.

Intruder Detection

For added security, Intruder Detection can capture a photo using the front camera when someone attempts to open locked apps. The app then shows a notification the next time you unlock your lock screen.

Note: Some user reports mention occasional technical issues. Also, since it does not include biometric unlocking, it may not be the best fit for users specifically looking for an automatic lock system.

Key Features

Time-Based Lock

Enable or disable locking for selected apps during specific hours.

• Example: lock social apps only during work hours (e.g., 9:00 AM–5:00 PM) and automatically unlock them outside that window.

WiFi-Based Lock

Lock apps based on the WiFi network you’re connected to.

• Example: enable locking for messaging apps when connected to your office WiFi, and disable it when you disconnect.

Intruder Detection

If someone tries to access locked apps, Ultra Lock uses the front camera to take a photo and notifies you next time you unlock.

Last Unlock Time

When you unlock the protected apps, Ultra Lock can display a notification showing the last time the locked apps were opened.

Lock PIN Modifiers

Ultra Lock includes modifiers to make PIN guessing harder, such as:

• Reverse modifier
• Offset modifier

Example: If you use the Hours & Minute type with the reverse modifier and the current time is 12:15 PM, Ultra Lock sets the lock screen PIN to 5121 (the reverse of the current time).

Random Numeric Keypad

The numeric keypad on the lock screen appears in a random order each time.

Photo and Gallery Lock

You can store and lock your private photos and videos inside Ultra Lock.

Advantages

• Smarter app locking with stronger security options.
• Quick setup: choose the lock type you like, apply your password/PIN, then tap save so the protection is active for future visits.
• Only authorized users can access: every time someone opens the protected apps, they must enter the correct password.
• Great for keeping sensitive activity private: it helps prevent others from seeing what you’re doing.

Tip: It’s also important to plan ahead so you don’t lose access if you forget your credentials.

More Lock Options (How They Work)

Time-Based Password (APK 1.4)

Ultra Lock (APK 1.4) can use time as a password. You can set a specific date or time interval, and then lock access using that schedule. If you don’t choose the correct date/time, you won’t be able to open it—making access possible only for the owner who remembers the correct timing.

WiFi Lock

Ultra Lock can also lock itself when you connect to a selected WiFi network. You set the password as usual, then choose the WiFi lock option. While you’re on that network, access is locked—so online attempts fail. When you turn it off (or leave the network as required), the lock behavior stops and you can open the app normally, since the password protection tied to that condition is no longer active.