telephonaki - Get your own Greek landline number in just a minute
SafeNote - Encrypt and send files and notes with a link that automatically destruct after being read. SafeNote is a free web-based service that allows you to share a note or a file with confidentiality. There is no way to spying on you even to a hacker.
ZeeroChat - ZeeroChat - Deletes Everything!
Cryptgeon - Securely share self-destructing notes
Cashew Secure Messenger - Cashew text messaging APP with HIPAA and Sarbanes-Oxley (SOX), Compliant secure text messaging for...
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.