Ultra Lock - App Lock & Vault
Ultra Lock - App Lock & Vault has 3,399,794 installs (+0.3% a month, measured over 41 days), rated 4.4 from 22,559 ratings, #2,676 of 247,518 in Tools.
Description
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All of the other App Lock applications provide just PIN and Pattern lock options to lock your apps and vault. Most of the time, our friends and colleagues can guess our PIN or Pattern by peeping over our shoulder a few times. Are your friends, colleagues, and family members guessing your PIN frequently? We provide the Ultra Lock app to solve your problem.
Apart from PIN and Pattern lock option, Ultra Lock provides the following unique lock options,
1. Hours and Minutes PIN: This option sets the current hours and minutes as your lock screen PIN. For example, if the current time is 10:50 AM, then your lock screen PIN will be 1050. Since hours and minutes in the cellphone changes every minute, your PIN will also change every minute. The best part is, you needn't remember the ever-changing PIN.
2. Date and Month PIN: If you don't want to change your lock screen PIN to every minute, you can make use of the Date and Month PIN which changes to your lock screen PIN to the current Date and Month. For example, if the current date is 06/05/2018 in MM/DD/YYYY format, then your lock screen PIN will be 0506. On the next day, the PIN will be 0606.
3. Battery and Battery PIN: Battery and Battery PIN will set your lock screen PIN as the current battery percentage on your cell phone. For example, if the current battery level is 50% then your lock screen PIN will be 5050.
Apart from them, Ultra Lock provides the various combinations of the Hours, Minutes, Date, Month and Battery level such as Minutes and Date PIN, Month and Minutes PIN, Hours and Date PIN, Minutes and Battery PIN, etc., Using them, will make it tough for others to guess your App Lock password.
Other Cool Features in the app,
1. Time-Based Lock: You can enable or disable the lock for a particular set of apps based on the time. For example, you can lock your social networking apps only during your office hours from 9 AM to 5 PM and unlock it after that time.
2. WiFi-Based Lock: You can enable or disable the lock for a particular set of apps based on your connected WiFi. For example, You can enable lock for Messaging apps when you connected to your office WiFi and disable lock for them when you disconnect from that.
3. Intruder Detection: The app will capture the photo using the front camera if someone tries to access your locked apps and show a notification about it when you unlock the lock screen next time.
4. Last Unlock Time: Ultra Lock will show a notification with the last opened time of the locked apps when you unlock the particular apps.
5. Lock PIN Modifiers: We provide reverse and offset modifiers which hardens the task of guessing your PIN. For example, If you use the reverse modifier option Hours and Minute PIN type and the current time is 12:15 PM, then Ultra Lock will set the lock screen PIN for the App Lock as 5121 which is reverse of the current time.
6. Random Numeric Keypad: The lock screen of the App Lock shows the numeric keypad in random order.
7. Photo and Gallery Lock: You can lock your private photos and videos inside Ultra Lock.
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AccessibilityService Disclosure
Ultra Lock needs the Accessibility Service API to detect when you open an app that you have locked. This allows the app to show the lock screen and protect your privacy.
Usage:
• Detect app launches
• Show lock screen over protected apps
We do not collect, store, or share any personal or sensitive data using this service.
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If you would like to be a Beta tester or provide feedback on the app, please send us an e-mail at help@miragestack.com. We will get in touch with you.
Is Ultra Lock - App Lock & Vault safe?
StoreTally doesn't rate safety. Here's what the store and our tracking show:
Reviews The reviews Google Play shows first (its most relevant), from the US store, in any language.
From 22,471 ratings.
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★☆☆☆☆ MD Mahmudul Hasan · 23 Sep 2026 · v2.0.3All the important photos and videos I had stored here have been automatically deleted! 😭 I did not expect this from this app.🙄Developer reply · 24 Sep 2026Sorry for the inconvenience caused to you. Please send an E-mail to help@miragestack.com with the following details. 1. Did you update the app recently? 2. Did you uninstall/re-install the app recently? 3. Have you used any storage clean up recently?
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★★★☆☆ Ishika Banger · 9 Sep 2026 · v2.0.3It is good lock to protect your personal apps like gallery
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★★★★★ Jeff Cook · 6 Sep 2026 · v2.0.3been happy with it for a few years and really like the fact that it uses Biometrics now much faster to use
Growth change in installs
| Per | Growth | Growth % | Actual change | Measured over |
|---|---|---|---|---|
| day | Not enough history yet | |||
| week | +1,704 | +0.1% | +1,940 | 8 days |
| month | +9,424 | +0.3% | +12,926 | 41.1 days |
| year | Not enough history yet | |||
How these figures are measured
Change in installs, scaled to each window from the real gap between crawls. A window needs a full period of history before it reports anything.
Tracking since 2026-09-29. History accumulates as changes are observed — check back soon.
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Rising in Tools this week
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+66,974 | +60.3% |
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