Private Photo, Video Locker – This is at first glance quite a common application for secure file storage. With it, you can hide the files you need from prying eyes, and only with a password you can open this data. However, there is one feature in it, it does not just hide the files you need, but completely masks them under the calculator. Even when the application starts, it will look like an ordinary calculator, and only after you type the desired code and press = it will give you access to the application itself or the file.
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