I know there are several pieces of software which offer the ability to encrypt files client-side and other software which encrypts files server-side, but that's not what I want. I'm planning to begin using the cloud to sync files between my iDevices and Windows PC. I'm currently using iTunes, but this doesn't provides a true 'sync' feature (i.e. it doesn't update files automatically). My concern with using the cloud is that I want my files to be encrypted, but on the client side. So basically what I'm looking for is encryption software which will run on a Windows PC and iOS to allow decryption of files from the cloud (specifically OneDrive). As I don't want it to go through a third party to encrypt I expect the encryption key would sync via iTunes (just a suggestion).


  • Allows encryption of files before uploading to the cloud (OneDrive)
  • Is cross-platform (specifically between Windows PC and iOS)
  • Does NOT sync the encryption key through a third party (i.e. client-side encryption key created)
  • Is free software (I wish is to be free on Windows, but I don't mind paying a modest fee for the app for iOS i.e. between free (ideal) up to $4.99)

I have seen Prot-On, but I am unsure whether this is actually what I am looking for (anyone with personal experience may be able to help here, as the website doesn't make it clear to me).

Thanks in advance


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.