PreCloud: Encrypt file note is a free iPhone application designed to enhance the security of your files and notes before uploading them to cloud storage. This open-source tool operates entirely on your device, ensuring that your passwords, encryption processes, and encrypted data remain private and secure. The app utilizes the well-established PGP encryption algorithm, widely recognized for its reliability, making it suitable for users who prioritize data protection.

In addition to file encryption, PreCloud allows users to generate strong passwords and supports the encryption of large files up to 1GB. The application does not have a server, meaning all operations are conducted locally, providing an added layer of security. Users are advised to keep their master password secure, as losing it will result in the inability to decrypt their files and notes.