Prot-On is a free iPhone application developed by Proteccion On-Line SL, falling under the Utilities & Tools category. It allows users to encrypt and control access to various types of files such as photos, videos, audios, texts, and documents.

With Prot-On, users can encrypt their files directly on their mobile devices and track who has access to them and when. The app enables users to manage permissions, revoke access instantly, and securely share files while retaining control over them.

Key features include the ability to change permissions for file access even after distribution, assign time-limited viewing permissions for photos, track access activity, prevent unauthorized sharing of files, and encrypt various file types like photos, documents, videos, and texts for secure communication.

Prot-On offers a simple and intuitive way to manage permissions, making it a valuable tool for protecting privacy and securely sharing sensitive information across multiple platforms.