Authy vs Let's Encrypt: What are the differences?
Developers describe Authy as "The easiest way to add Two-Factor Authentication to any website or app". We make the best rated Two-Factor Authentication smartphone app for consumers, a Rest API for developers and a strong authentication platform for the enterprise. On the other hand, Let's Encrypt is detailed as "A free, automated, and open Certificate Authority (CA)". Let’s Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).
Authy and Let's Encrypt can be primarily classified as "Security" tools.
According to the StackShare community, Let's Encrypt has a broader approval, being mentioned in 269 company stacks & 137 developers stacks; compared to Authy, which is listed in 20 company stacks and 5 developer stacks.