Suggest an alternative to

Humanizer

Very simple captcha with Rails 3 & 4 & 5 & 6 & 7 support

Why do you think that https://github.com/AndyObtiva/glimmer is a good alternative to Humanizer

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with Humanizer. Optional.

A valid email to send you a verification link when necessary or log in.