FusionAuth
FusionAuthReviews from AWS customer
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A safe, easy-to-use platform for authentication made our SaaS projects much simpler.
What do you like best about the product?
I love how FusionAuth is so developer-centric and flexible. It took me just days to integrate it into our SaaS platform, rather than the weeks of authentication setup we used to go through. The flexibility related to user authentication flows, specifically multi-tenant login, social login, passkeys, and biometrics, is just outstanding. Universal logins along with two-factor support were quite a professional first-day undertaking in terms of security setups.
What do you dislike about the product?
The major drawback that I have faced has to do with pricing clarity as one scales. For startups or teams who have just started with user authentication, it is not always obvious wherein the long run the cost implications lie. It would be very useful if FusionAuth was clearer on its cost structures at scale.
What problems is the product solving and how is that benefiting you?
We have pretty much brought all our authentication systems for numerous web apps onto one platform through FusionAuth. Creating and keeping up login and confirmation functionalities had been quite tedious and chaotic for our team to do piecemeal. But after implementing FusionAuth, we were able to fastly deploy secure APIs along with MFA and Single Sign-On without reeling under many errors.
FusionAuth Is a Beast Once You Tame It — Secure, Powerful, and Occasionally Infuriating
What do you like best about the product?
What really won me over with FusionAuth is how naturally it fits into our Microsoft-heavy environment. Setting up SSO across Outlook, Teams, and SharePoint felt like flipping one big switch — suddenly, people weren’t forgetting passwords or pinging IT for access issues every other day. Conditional Access is one of those features I didn’t know I needed until I had it; I can allow access based on location or device, which has been huge for our remote team. Also, being able to roll out MFA using the Microsoft Authenticator app made our compliance team very happy without annoying our staff.
What do you dislike about the product?
The initial setup almost broke me. Trying to integrate FusionAuth with our older on-prem Active Directory was like stitching two universes together, and don’t get me started on SAML — it feels half-baked compared to Okta’s clean implementation. Also, some of the policies become a labyrinth over time; one misstep and you’re locked out of your own admin portal wondering what went wrong.
What problems is the product solving and how is that benefiting you?
Before FusionAuth, managing user access felt like whack-a-mole — new hires, password resets, inconsistent MFA rules across tools. Now, I can onboard a new employee in minutes: create the user, drop them into the right group, and they’re good to go with full device-level security via BitLocker and conditional access.
Strong, Scalable MFA with Some Friction: FusionAuth Delivers Where It Counts
What do you like best about the product?
What I appreciate most about FusionAuth is how seamlessly it secures our environment using multi-factor authentication (MFA) without compromising on usability. The FusionAuth Push feature is by far the most convenient — I just tap my phone to approve access, no codes needed. Its integration with Microsoft 365, on-prem Active Directory, Meraki, and even third-party apps like AWS and Falcon Antivirus has made deployment very flexible across our stack. I also really value the Unified Endpoint Visibility dashboard — it gives me a clear view of every device accessing our systems, from corporate laptops to BYODs.
What do you dislike about the product?
FusionAuth’s setup process can be overwhelming, especially when configuring SSO with on-prem systems — the documentation is there, but it demands careful reading. It’s also frustrating that you need internet access for it to work; there's no offline mode fallback. And while the mobile-first experience is great, it becomes a problem if the phone is lost or forgotten — you’re effectively locked out.
What problems is the product solving and how is that benefiting you?
By enforcing MFA and verifying the security posture of each device (OS version, encryption, etc.), it reduces our exposure to phishing, stolen credentials, and insider misuse. FusionAuth has been very helpful in meeting insurance and compliance needs for me as someone who works in a regulated field. Compared to free alternatives like Google Authenticator or Microsoft Authenticator, FusionAuth stands out by offering push notifications, endpoint trust policies, and integration support — features we rely on every day.
FusionAuth: Serious Security with a Surprisingly Smooth User Experience
What do you like best about the product?
What I appreciate most about FusionAuth is how seamlessly it balances strong multi-factor authentication (MFA) with flexible integration into our existing infrastructure. The Duo Push-style interface, where users can just tap a notification instead of putting in codes, makes it more easier for people to use, even teams who aren't very tech-savvy. We’ve even been able to scale usage across over 2,000 endpoints without breaking a sweat.
What do you dislike about the product?
The initial setup, especially configuring SSO with on-prem Active Directory or federated 365 domains, required a lot of careful reading and re-reading of documentation. It’s not something you want to rush, and integration with legacy systems wasn’t as plug-and-play as we’d hoped. Sometimes, the authentication pop-ups don’t appear unless the app is manually opened, which frustrates some of our users.
What problems is the product solving and how is that benefiting you?
FusionAuth has helped us make sure that only authorised people may access critical data in a safe and compliant way. This gives IT admins and end users piece of mind. We operate in a regulated industry, and FusionAuth's flexible MFA methods (push notifications, passcodes, biometrics, etc.) meet those security requirements without adding friction. We considered Microsoft Authenticator and Google Authenticator, but FusionAuth won out due to its granular device tracking and integration-friendly architecture.
Reliable Identity Management for Modern Fintech Needs
What do you like best about the product?
FusionAuth has been a bit of a game-changer for us—not in the flashy, overhyped way some tools promise to be, but in a grounded, reliable kind of way. What I’ve come to appreciate is how it quietly takes care of the identity chaos that used to haunt our stack. Setting up OAuth2 and SSO was surprisingly smooth; I had our core app talking to FusionAuth in under ten minutes, which honestly shocked me after wrestling with tools like Keycloak in the past.
What do you dislike about the product?
Multi-tenant setups took some brainpower and trial-and-error, especially since our team doesn’t live and breathe IAM. The reporting side also feels undercooked—it gives you the basics, but if you’re used to slicing and dicing access logs like you can with tools like Okta, you’ll feel a bit boxed in. And while support is helpful, I’ve had moments where I wished for a bit more than just a link to the docs when tackling edge-case scenarios.
What problems is the product solving and how is that benefiting you?
We no longer have five different half-baked login flows duct-taped together, and managing access across environments doesn’t require a prayer and a late night. The fact that we can host it ourselves gives us peace of mind—especially in Fintech, where compliance paranoia is kind of the norm. Compared to Auth0, which got expensive fast, and rolling our own solution (which was a nightmare I’d rather not revisit), FusionAuth hits that sweet spot: flexible enough to grow with us, stable enough to trust, and just opinionated enough to keep us out of trouble.
FusionAuth Platform Review: A Developer-Friendly, Secure IAM Solution for Modern Applications
What do you like best about the product?
FusionAuth comes highly recommended as a secure, flexible, and production-ready identity and access management (IAM) solution. It's perfect for projects that need scalable identity services, complete with full Active Directory and LDAP support, multi-tenant management, and tools designed with developers in mind.
What do you dislike about the product?
All good. Still not found any issues in FusionAuth
What problems is the product solving and how is that benefiting you?
Unified Identity Management
Problem: Juggling authentication across various applications—whether they’re web-based, mobile, or APIs—using custom authentication logic can lead to errors, security issues, and scalability challenges.
How FusionAuth Helps:
FusionAuth streamlines user authentication by leveraging industry standards like OAuth2, OpenID Connect, and SAML, creating a cohesive identity platform for all our applications.
Problem: Juggling authentication across various applications—whether they’re web-based, mobile, or APIs—using custom authentication logic can lead to errors, security issues, and scalability challenges.
How FusionAuth Helps:
FusionAuth streamlines user authentication by leveraging industry standards like OAuth2, OpenID Connect, and SAML, creating a cohesive identity platform for all our applications.
FusionAuth is a one stop gateway that simplified our workflow and boosted security.
What do you like best about the product?
FusionAuth's ability to concentrate everything I need into one, simple platform appeals most to me. FusionAuth provides one tidy dashboard where all of my professional apps sit; I no longer have to go through bookmarks or balance several logins to identify the correct tools. Not only tools, the single sign-on and multi-factor authentication are daily lifesaver. It feels like my entire workflow got a speed boost and a security upgrade all at once.
What do you dislike about the product?
The multi-step login, especially with MFA, can feel a bit tedious—there have been moments where codes don’t sync or I need to retry a few times. Also, switching devices (especially phones) messes with the setup and isn't as seamless as it should be. And compared to a few competitors like Okta or Auth0, FusionAuth's UI feels a little more functional than refined.
What problems is the product solving and how is that benefiting you?
FusionAuth solved one of the biggest daily headaches: managing access to seven different tools I rely on throughout the day. Instead of logging into each one separately, I just sign in once and I’m good to go. It has reduced password fatigue significantly, improved our team’s compliance efforts, and made onboarding and offboarding users practically effortless thanks to automated provisioning. I’ve used Okta in the past, and while it’s solid, I’ve found FusionAuth’s developer-first approach and pricing far more aligned with our team’s real-world needs.
FusionAuth greatly helps with identity management for hybrid environments
What do you like best about the product?
FusionAuth's seamless interaction with on-site and cloud-based solutions is what most appeals about it. It has been quite simple to set up roles, control user access, and apply SSO throughout several SaaS systems. It also has strong API support and seamlessly incorporate into our CI/CD processes which have greatly delighted me.
What do you dislike about the product?
One drawback I have observed is that, like Entra ID P2, some of the sophisticated security and identity governance tools call for premium licensing. Furthermore, especially in troubleshooting, the on-site synchronizing mechanism might be more open and user-friendly. Although FusionAuth is quite flexible, mass actions usually call for scripting knowledge—PowerShell in other platforms or custom CLI tools here—which might not be perfect for non-technical teams.
What problems is the product solving and how is that benefiting you?
FusionAuth has greatly simplified user ID management for hybrid systems. Managing access for remote and on-site users used to be a disjointed mix of systems, but with FusionAuth we handle all centrally—policies, roles, device access, even audit trails. Especially in relation to legacy AD systems, the speed at which we can onboard or deprovision users has saved our team innumerable hours.
FusionAuth is a very developer friendly identity solution that works without any issue
What do you like best about the product?
I love how FusionAuth lets me own my data and run everything on-premise, which gives me a level of control that SaaS solutions like Auth0 just don’t offer. Setting it up was smooth and the API-first design and thorough documentation also meant I didn’t have to guess or dig through forums. It’s refreshing to see a platform that doesn’t get in my way when I want to tweak things deeply, even with custom themes and tenant-specific configurations.
What do you dislike about the product?
The UI is functional but not exactly delightful—it’s very utilitarian. Also, multi-tenancy is great, but it can feel a bit over-complicated at times, especially when managing separate branding per tenant. Finally, while the documentation is robust, some edge-case behaviors around SSO and JWT token handling could be better clarified.
What problems is the product solving and how is that benefiting you?
FusionAuth solved a major headache for me—managing authentication across multiple apps without giving up control or paying a fortune. I’ve used Auth0 before, but the free tier ran out fast and the lock-in was a real concern. With FusionAuth, I can run everything locally, customize login flows, and even add social login without needing a PhD in identity protocols. FusionAuth also saved me much time and resources by eliminating the need to roll my own auth while still letting me build exactly what I want.
FusionAuth is secure, smart, and surprisingly simple to use
What do you like best about the product?
What I love most about FusionAuth is how it brings together all the tools and platforms I need under one secure roof and as a result I no longer waste time hunting down login links or juggling a dozen passwords and everything I need is in one place. It’s easy to use, integrates seamlessly with other systems, and the browser extension makes starting my day effortless. I especially appreciate the ability to customize access depending on roles within the organization and something other tools like Okta and OneLogin struggled to handle as cleanly.
What do you dislike about the product?
One thing I wish FusionAuth handled better is session duration and I’d love the option to stay logged in for a defined number of days without being forced to reauthenticate so often. Occasionally, if a deployment isn’t planned well, it can feel overwhelming for new users to get the hang of. I’ve also noticed some limitations with integrating tools like Jira and Git, which competitors like Okta seem to support more readily.
What problems is the product solving and how is that benefiting you?
Before using FusionAuth, my daily routine started with manually logging into more than 10 applications, often spending 10–15 minutes just getting set up. Now, I log in once, and FusionAuth handles the rest—saving me time and mental bandwidth every single day. It’s also solved the major headache of password management; I only need to remember one, and with MFA options like SMS or app authentication, I feel secure.
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