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    FusionAuth - Modern Customer-Deployable CIAM Solution

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    Deployed on AWS
    The only Customer Identity and Access Management (CIAM) with hybrid, dedicated deployment you can dev and test anywhere.

    Overview

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    FusionAuth is an OIDC, SAML, and OAuth-compatible auth server. This includes user management, groups, roles, unlimited enterprise SAML and OIDC connections, and social logins such as Facebook and Google. It is compatible with SAMLv2 and OAuth2 clients. The Starter plan includes premium auth features including advanced MFA, single sign-on, passwordless and social login, LDAP connectors, application theming, breached password detection, machine-to-machine authentication, and more. On the Starter plan, support is provided through the community, including forums, Slack, and GitHub. The Starter plan allows up to 10,000 monthly active users. The service runs on a dedicated EC2 instance. This is a single server with 3 days of backups. You can configure one custom domain name.

    Highlights

    • User management, groups, roles, unlimited enterprise SAML and OIDC connections, and social logins such as Facebook and Google. It is compatible with SAMLv2 and OAuth2 clients.
    • Premium authentication features include advanced MFA (including TOTP, SMS and email), , generic LDAP connectors, application theming, breached password detection, machine-to-machine authentication, and more.
    • Runs on a dedicated EC2 instance. This is a single server with 3 days of backups. You can configure one custom domain name.

    Details

    Delivery method

    Deployed on AWS

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    Pricing

    FusionAuth - Modern Customer-Deployable CIAM Solution

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    Pricing is based on the duration and terms of your contract with the vendor, and additional usage. You pay upfront or in installments according to your contract terms with the vendor. This entitles you to a specified quantity of use for the contract duration. Usage-based pricing is in effect for overages or additional usage not covered in the contract. These charges are applied on top of the contract price. If you choose not to renew or replace your contract before the contract end date, access to your entitlements will expire.
    Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator  to estimate your infrastructure costs.

    1-month contract (1)

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    Dimension
    Description
    Cost/month
    FusionAuth
    FusionAuth Plan as defined in your private offer.
    $400.00

    Additional usage costs (1)

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    The following dimensions are not included in the contract terms, which will be charged based on your usage.

    Dimension
    Description
    Cost/unit
    overage
    MAU overages charged on an arrears basis as needed.
    $0.01

    Vendor refund policy

    All fees are non-cancellable and non-refundable except as required by law.

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    Legal

    Vendor terms and conditions

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    Usage information

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    Delivery details

    Software as a Service (SaaS)

    SaaS delivers cloud-based software applications directly to customers over the internet. You can access these applications through a subscription model. You will pay recurring monthly usage fees through your AWS bill, while AWS handles deployment and infrastructure management, ensuring scalability, reliability, and seamless integration with other AWS services.

    Support

    Vendor support

    AWS infrastructure support

    AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.

    Customer reviews

    Ratings and reviews

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    116 external reviews
    Star ratings include only reviews from verified AWS customers. External reviews can also include a star rating, but star ratings from external reviews are not averaged in with the AWS customer star ratings.
    Computer Software

    Good Product, Horrible Customer Treatment

    Reviewed on Oct 07, 2025
    Review provided by G2
    What do you like best about the product?
    We have complex needs in that we’re a multi-sided, multi-tenant enterprise SaaS platform and need to support customer specific identity providers for SSO. We also require end-to-end authentication across different applications, microservices, and APIs. FusionAuth’s flexible multi-tenant architecture and first-class developer experience enabled us to unify all of this in short order, and made it simpler than others (at the time) to do so.
    What do you dislike about the product?
    Their commercial practices are horrible. For many years we were a "no maintenance" customer, never needing to leverage their support or complain in any way. At the request of their CEO we let them do a press release about our selection of them. We served as a sales reference too, even speaking with prospects, at least one of which became a customer spending more than double what we did.

    Last year, out of the blue, FusionAuth dropped a more than 2x price increase coupled with an annual commitment under the guise of dropping high availability hosting from the plan we were on. We didn't need any of the features in the new tier, either.

    Their account executive hounded us relentlessly via email and voice mail, all the while ignoring our request for specifics as to how a downgrade would be handled if we did not proceed. Ironically, their VP of sales would email about "our continued partnership." Meanwhile, their backoffice kept renewing our existing plan, sending mixed messages.

    After years of being their advocate, we were left feeling like just another number to squeeze for revenue.
    What problems is the product solving and how is that benefiting you?
    FusionAuth’s IAM platform was built with developers in mind and is API-first, meaning developers are able to easily integrate its authorization and authentication services such as OAuth, OpenID Connect and SAML directly into the products they're building. At the time we selected them, they were leagues ahead of other competitors like Auth0 in this regard.
    Marc F.

    FusionAuth improves my productivity while keeping my applications secure

    Reviewed on Oct 05, 2025
    Review provided by G2
    What do you like best about the product?
    FusionAuth manages user authentication for my internal and client side applications and what I enjoy the most is how easy it is to set up single sign-on and multi-factor authentication. As once configured, I never have to manage them again. I enjoy the simplicity of the Dashboards and the low frequency of user facing changes.
    What do you dislike about the product?
    Troubleshooting documentation, and documentation on tweaking some components, is to me overly complex. I also didn’t anticipate the configuration time due to the state of the legacy systems. Further, I feel reluctant documentation around advanced settings and some high level prompts on what is to come would go a long way.
    What problems is the product solving and how is that benefiting you?
    I can now focus my uncovered time on user facing applications, knowing that the security of user access to back-end applications is stream lined and also since FusionAuth improves compliance around security and manages support requests around blocked accounts.
    Ashura J.

    Solid!

    Reviewed on Sep 23, 2025
    Review provided by G2
    What do you like best about the product?
    It's user friendly, offers great flexibility with customizable workflows that are easy to set up & use
    What do you dislike about the product?
    Nothing so far. I like the software.....
    What problems is the product solving and how is that benefiting you?
    Mostly login issues,
    Mike P.

    FusionAuth is My Favorite Authentication Provider for My Apps.

    Reviewed on Sep 22, 2025
    Review provided by G2
    What do you like best about the product?
    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.
    What do you dislike about the product?
    The admin UI could use some work. It is quite frustrating going through many menus for what should be simple adjustments. It takes a lot longer than it should to set some advanced features like a tenant-specific role or a webhook. Other useful features are paid and can be expensive for smaller projects.
    What problems is the product solving and how is that benefiting you?
    FusionAuth saves me countless hours on building authentication systems from scratch, which is a significant portion of time wasting effort. It automates user account consolidation, password management, complicated login processes, user sign up and sign in, and user centralization. With authentication systems no longer being an issue, I can dedicate my time on the actual product.
    Troy S.

    Top-Notch Identity Provider, Top-Notch Support, Minimal Cost

    Reviewed on Sep 17, 2025
    Review provided by G2
    What do you like best about the product?
    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 do you dislike about the product?
    Minor gripe, but I would find it helpful to be able to generate more advanced reports on users, usage, sessions, etc from the dashboard directly. Some of the reports I've had to generate in the past were easier to generate by using their API, then writing a quick script to roll-up results. Otherwise, not much to "dislike" about the service - it's frankly been one of the easiest to incorporate into our stack. Very pleased with our decision.
    What problems is the product solving and how is that benefiting you?
    We needed an affordable way to implement multi-tenancy in a B2B scenario, are were particularly interested in the "Identity Provider" support so we could offer customized SSO for each tenant individually. Achieving this with competitors would be possible, but at significant cost. The primary benefit to FusionAuth for our team has been the ability to fully isolate tenants and configure them to meet varying customer needs. Furthermore, their API has made it possible to automate much of the provisioning and deprovisioning of tenants, users, and other bits of configuration.
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