We are evaluating SuperTokens and Lock. If Auth0 becomes expensive, we can host another solution.

We chose Auth0 after we did some research into other candidates. We looked into Cognito by Amazon because it was the cheapest.

We also looked at Okta, and although this might have changed in the last three years, at that time Okta didn't have a clear strategy to support a large volume of customers. It looked like they were more focused on enterprises and their pricing model did not work with the needs of a customer-facing authentication system. Today they have an offering for that, but three years ago it wasn't like that. 

We also looked at some on-premises solutions, like Shibboleth, but we didn't seriously consider them.

We evaluated a couple of other options before choosing Auth0. We looked at Microsoft and Okta. We went with Auth0 because at the time Microsoft was about to renew, so it wasn't as easy to set up, although Microsoft is a fine product and Okta is also a fine product, at that stage, it was more aligned on-prem authentication than it was to B2C.

We have been evaluating multiple single sign-on solutions including Auth0 and Okta.

We run a successful proof of concept but we did not select Auth0 because their entire structure is hosted on AWS, and we are a data center company so we thought that having the backend hosted on AWS was not the right choice for us.

Had this same solution been available as a private deployment then it would have been the right fit for us.

Before choosing this product, I also evaluated Stormpath.

We did some evaluation. We evaluated the solutions that are available from various cloud providers such as AWS, GCP, and Azure.

We also looked into Okta, which was its competitor at that time. Now, Okta is the owner of Auth0. At that time, we felt that Auth0 had a big advantage over Okta. Auth0 was focused on the external users' experience. Okta, for example, was more focused on internal employees logging into the systems. It was more about internal entity management. We wanted something for external users, and Auth0 was really great at that.

We went with Auth0 also because it is a company that is fully committed only to identity management. With cloud providers, this is just another service that can be maintained. So, we wanted to go with a provider that is really focused on delivering only external identity management solutions for customers like us.