Calculator Lock
Tools
2026-11-06
66.99MB
2.4.1
Android
584
Screenshots
Introduction
Calculator Lock is a system utility for Android devices designed to effectively protect users' photos and videos. Upon opening the app, users are presented with a list of their installed applications, which can then be managed through various available options. The app includes a built-in viewer for photos and videos, as well as a privacy-focused browser that ensures no browsing history is saved. Users can also set password protection for specific applications. Furthermore, the app’s icon can be customized to appear as a standard calculator icon.

Features
Hide Photos and Videos
Secret media files are stored within Calculator Lock and will not appear in any other photo albums, galleries, or file managers. Keep your private photos, videos, and movies safe from prying eyes.
Video Player and Built-in Photo Viewer
You can play hidden videos directly inside Calculator Lock. The video player offers convenient controls—such as brightness and volume adjustment, and one-tap muting—allowing you to quickly adapt to any situation.
The built-in photo viewer lets you easily browse all the photos hidden within the app. HideU also supports photo editing: add filters, crop images, insert text, or adjust basic parameters—just like using a standard system photo editor!
Private Browser
If you want to protect your browsing data, the private browser is an excellent choice, offering a secret and anonymous browsing experience.
App Lock
For locked apps, users must enter a password or draw a pattern to gain access. App Lock prevents your private information from being exposed to others.
Cloud Services
Back up all your personal files and data to the cloud in a secure, private manner, ensuring maximum protection for your information.
Icon Disguise
The app’s icon resembles a standard system calculator, and it functions as a fully operational calculator as well. Accessing the private vault is discreet—no one but you will ever know that this hidden space exists.

Advantages and disadvantages
Pros
Working calculator provides a credible disguise
Hides media, documents, audio, and text files
App Lock protects messengers and other sensitive apps
Built-in viewers reduce the need to expose hidden media
Cons
Ads repeatedly interrupt app switching and storage access
Deleting app data or generated folders can cause permanent file loss

Highlights
Seamless Organization
The app offers a completely organized gallery for storing your data within a foolproof system. It allows you to import catalogues and organize them in folders. The stored data will be 100% safeguarded and away from any type of unauthorized access.
Break-in Alerts
The break-in alerts help to notify the users if any unauthorized person tries to access your hidden data. It also offers a decoy password option that gives access to a fake vault and safeguards your real hidden vault. It is the best option to make your privacy well-guarded and give peace of mind while avoiding any type of data-leaking threat.
Customized Access
You are allowed to use a password for quick and easy access to your hidden content. It is customizable, as you can change the password, or even the security questions if you want to. You can also enjoy a personalized experience while using various themes. It also offers quick retrieval of accidentally deleted content while using the recycle bin feature. You can browse privately within the app and lock any app on your device.

Summarize
Calculator Lock offers a secure and innovative solution for protecting your personal files, images, and videos. Designed to appear as a fully functional calculator, this app discreetly hides your sensitive data within a private vault, accessible only through a numeric PIN. Its primary purpose is to safeguard your privacy by concealing media and files while adding an extra layer of security to your apps through app locking functionality.