Email List Verify - The Fastest Way to Improve Email List Deliverability and ROI
Aegis Authenticator - Aegis Authenticator is a free, secure and open source app to manage your 2-step verification tokens...
NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
BriteVerify - Email Validation & Email Verification reduces bounce rates up to 98%. Rapidly verifying email addresses has never been easier, just drag drop and deliver!
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.