Instant 2FA vs Virgil Security: What are the differences?

Developers describe Instant 2FA as "Add two-factor auth to any site in minutes". Add a powerful, simple and flexible 2FA verification view to your login flow, without making any DB changes and just 3 API calls. On the other hand, Virgil Security is detailed as "We make every developer into an applied cryptologist". Virgil consists of an open-source encryption library, which implements CMS and ECIES(including RSA schema), a Key Management API, and a cloud-based Key Management Service.

Instant 2FA and Virgil Security can be primarily classified as "Security" tools.

Virgil Security is an open source tool with 139 GitHub stars and 12 GitHub forks. Here's a link to Virgil Security's open source repository on GitHub.