PGPMailer

PGPMailer is a secure-first Android email client with modern UI and OpenPGP support.

Key features:

• IMAP/SMTP account setup with diagnostics
• Folder-based mailbox with search and filters
• Compose plaintext, signed, or encrypted emails
• Inline OpenPGP encryption/signing compatible with common OpenPGP tools
• Key manager for generating, importing, trusting, and searching public keys
• Secure decryption for encrypted messages and attachments
• In-app secure PDF preview for decrypted attachments
• PIN protection with optional biometric authentication
• Encrypted local storage for sensitive app data

PGPMailer is designed for users who want control over their email security while keeping a practical day-to-day workflow.