FusionAuth suited my needs as the authentication system for a number of web applications I use and I particularly like the ease with which I can control different methods of logging in - email/password, social logins, and even magic links. The self-hosted option is particularly appealing because the APIs are simple, and control over the data is guaranteed. I have the freedom of self-hosting without the worry of being stuck in a rigid setup.

Have been using FusionAuth as our primary identity provider for a few years now. It's been fantastic. Their documentation is professionally written and well organized - that along with their "Ask AI" feature has made it possible to accomplish some sophisticated configurations to meet our customer needs without having to reach out needlessly for support. Speaking of support... they are very friendly and quick to respond to messages. Various installation methods (managed or self-hosted) and different plan tiers make it quite flexible for various product needs. The starter plan is very generous and compared to other offerings on the market the cost is minimal. Overall I'm very pleased with selecting FusionAuth as our identity provider.

What we truly like is that it is quite seamless to utilise several separate client environments with only a single FusionAuth instance. The flexibility of the theming of our online onboarding process of new B2B customers has allowed us to add a branded login experience without any glitches. We also found the custom data fields so helpful in assigning specific fields of data to user profiles, in order to drive some of our internal analytics.