oPenGP alternatives

oPenGP is a proprietary app for iPhone and iPad. It is a paid product (one-time $5). Developed by grégory descamps.

Alternatives

• GnuPG
• GPG4Win
• Kleopatra
• Axcrypt
• AES Crypt
• Lock GnuPG
• Encrypto
• FreeOTFE
• GoAnywhere OpenPGP Studio
• Challenger
• APG
• Unicode Crypter