finpin

Unlike password-based solutions that require you to remember just another PIN or password, sezame is a secure and simple multi-factor authentication solution. 
You only need the username and your fingerprint on your smartphone to log into any sezame-enabled site.

Sezame

Passwordless multi-factor authentication.

rownd

mhamann

Rownd is a user authentication and account platform that helps you convert more visitors to your website into actual (paying) customers.
We’re focused on passwordless sign-in that uses email and SMS as a means of distributing authentication links that allow users to verify 
their email/phone after they’ve had the opportunity to explore your product or service.
When you install the Rownd plugin for WordPress, you’ll bring our powerfully simple authentication and user account capabilities into 
your website, blog, or ecommerce site.
Rownd integrates with the existing WordPress user management system, which means we’re compatible with WooCommerce and many other 
WordPress addons! We’ll also detect whether you have WooCommerce installed and provide options to customize your customer experience 
during the checkout process.
Whether you’re accepting user signups already or want to start, Rownd makes it super-simple to get visitors and customers up and running quickly. 
Easily trigger our sign-in dialog by setting some HTML data attributes in your code or writing some simple Javascript and we’ll handle getting 
your users verified and signed in using our unique, passwordless approach.
To get started, you’ll need:
<ol>
<li>A free <a href="https://app.rownd.io" rel="nofollow ugc">Rownd account</a></li>
<li>A Rownd app key</li>
</ol>
Once you install this plugin, drop your app key and secret into our settings and you’ll be good to go!
Usage of this plugin is governed by Rownd’s <a href="https://rownd.io/terms-and-conditions" rel="nofollow ugc">terms of service</a>.

Rownd — Instant user accounts and authentication

Instantly turn visitors into users with Rownd's radically simple, user-centric authentication.

Sezame vs Rownd — Instant user accounts and authentication