Prot-On is a free Android application developed by Protección On-Line that allows you to encrypt and control your files, including photos, videos, audios, documents, and text. With Prot-On, you can decide and track who and when can access your shared files. You can also view and play your protected files directly on your mobile device, and keep control of any existing copies wherever they may be, whether in the cloud, on other phones, computers, or storage devices.

The app is very easy to use, and you can get started by simply downloading it and creating an account. If you regret having shared a file, you can take away access in an instant. With Prot-On, you can have peace of mind knowing that your files are secure and under your control.