Duo Security vs Google Authenticator

Duo Security
Two-factor authentication done right. Duo Security lets your users use their mobile phones to secure their logins, protecting your company from account takeover. Duo’s solution is cloud-based, which means there's no software to install, and no server to set up. Our patented technology and drop-in integrations enable you to seamlessly integrate Duo into your existing application login workflow.
Google Authenticator
Google Authenticator generates 2-step verification codes on your phone. Enable 2-step verification to protect your account from hijacking by adding another layer of security. With 2-step verification signing in will require a code generated by the Google Authenticator app in addition to your account password.
Comparing Duo Security vs Google Authenticator is like comparing apples to oranges. Because your business is unique and nobody except you can decide, which is better for your company. But we can add some fun to your research and suggest some new comparison parameters.

Ok, now let's compare the UI. Looks like Google Authenticator has more user-friendly interface than Duo Security because it's bigger. At least on our screenshots

To compare the popularity of the solutions we counted how many alternatives people search for each of them on the Internet. And it turns out that Google Authenticator is more popular than Duo Security

Now let's look at the recent activities of our competitors:

- Duo Security raised $70 million (in 2017)
- Duo Security unveiled new service to protect enterprises against data breaches (in 2015)
- Two-Factor authentication service Duo raises $12 million (in 2014)

Looks like Duo Security was recently more active than Google Authenticator (at least in our news).