FusionAuth vs Seamless Auth
FusionAuth
fusionauth.io
Seamless Auth
seamlessauth.comSide by side
| Figure | FusionAuth | Seamless Auth |
|---|---|---|
| Price from | $162/mo | $49/mo |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 8 | 4 |
| Spec score · Passwordless Authentication Software | 9.2 (#3) | 7.9 (#15) |
| Authentication methods | Supported methods include passwords, social and enterprise identity providers, passkeys and one-time passwords. | The product supports passkeys, magic links, email and phone OTP, and TOTP MFA. |
| Integrations | Identity-provider integrations include Apple, Facebook, Google, Twitter and arbitrary OIDC or SAML v2 providers, with connectors, plugins and monitoring integrations also available. | The maker documents React, Express, Fastify, and Next.js integrations, with a framework-agnostic core for other runtimes. |
Plans
FusionAuth
- CommunityFree
- CommunityFree
- Starter$162 a month
- Starter$162 a month
- Enterprise$2,970 a month
- Enterprise$2,970 a month
- Essentials$2,970 a month
- Essentials$2,970 a month
Seamless Auth
- Free trialFree
- MVP$49 a month
- Business$149 a month
- EnterprisePriced on request
In their own words
FusionAuth
FusionAuth is a Customer Identity and Access Management server for authentication, authorization, and user management. It supports username and password login, passkeys, one-time passwords, and external identity providers, including Apple, Facebook, Google, and Twitter. It implements OAuth 2.0, OpenID Connect, and SAML v2. Authorization includes role-based access across users, roles, groups, applications, and entities, plus fine-grained authorization integration. Teams can customize pages and messages and use lambda functions and webhooks. It can run locally, on-premises, in private or air-gapped cloud environments, or as a managed FusionAuth Cloud instance. The free Community Edition is self-hosted and unlimited, with no trial clock. Starter costs $162 a month billed annually and includes one connector and 100 machine-to-machine entities; Essentials and Enterprise cost $2,970 a month billed annually. FusionAuth supports Android, iOS, Linux, macOS, Windows, web, and API deployments.
Seamless Auth
Seamless Auth has no write-up on Specifiction yet; its figures are above.