otp.com Alternatives & Competitors

Brings voice and messaging to your web and mobile applications.

Key Twilio features:

Scalability Ease of Integration Global Reach Feature-Rich Platform

Open Source

Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.

Key Authy features:

Multi-device synchronization Encrypted backups Offline usage capability Desktop app available

End-to-end encrypted password manager built for teams. Secure every login, share credentials safely, and keep all your business accounts protected with zero-knowledge encryption and Swiss privacy laws you can trust.

Key Proton Pass for Business features:

Privacy-Focused End-to-End Encryption Multi-Platform Support Open Source

Try for free Open Source paid Free Trial $1.99 / Monthly (Pass Essentials)

Google Authenticator is a multifactor app for mobile devices.

Key Google Authenticator features:

Enhanced Security Offline Access Compatibility Free of Charge

free

MailChimp is the best way to design, send, and share email newsletters.

Key MailChimp features:

Ease of Use Automation Features Comprehensive Reporting Integrations

Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

Key Brevo features:

User-Friendly Interface Comprehensive Analytics Customization Options Automation Features