Frontegg

Frontegg provides customer identity and access management for customer-facing applications. Its listed authentication options include password-based and passwordless sign-in, social logins, enterprise SSO, passkeys and MFA. Access controls include roles, permissions, relationship-based access control, feature flags, subscription management and API access control. B2B tools cover invitations and user groups, tenant-specific MFA and session policies, and tenant-level IP and domain restrictions. Teams can offer an embedded self-service admin portal for identity and account management. Developer resources include client SDKs for React, Next.js, Angular, Vue and Vanilla.js, backend SDKs, and JWKS token validation; Android Kotlin and iOS Swift integrations are documented for step-up authentication. Listed integrations include Slack, Microsoft Teams, Salesforce, HubSpot and Twilio, with custom webhooks for other services. Pay as you go is free, billed $0/month, and includes 7,500 monthly active users, five enterprise connections, unlimited organizations and a custom domain. Enterprise pricing is custom.

Frontegg brings authentication, authorization and B2B tenant controls together for customer-facing applications. Review the email configuration limits and the included free-plan quantities against your requirements.

Frontegg is aimed at developers and architects building customer-facing products, as well as infosec, customer success, support and product teams. Its B2B tenant controls may suit teams managing identity and access across customer organizations.

Frontegg is customer identity and access management software for applications with external users. It suits product, engineering, security and customer-success teams building B2B products that need tenant controls as well as sign-in. Its broad feature set is compelling, while the email-service limits and Enterprise pricing deserve close scrutiny.

Overview

Frontegg combines authentication, authorization and customer account administration in one service. An embedded self-service admin portal lets customers manage identities and accounts without requiring a separate administration product. Developers can integrate with client SDKs for React, Next.js, Angular, Vue and Vanilla.js, backend SDKs, or JWKS token validation. Android Kotlin and iOS Swift integrations support step-up authentication.

The platform is designed for customer-facing applications rather than only workforce identity. Its authorization scope includes roles, permissions, relationship-based access control (ReBAC), feature flags, subscription management and API access control. That breadth can replace several components in a B2B stack, but teams needing only basic login may find the scope more than they need.

Key features

Authentication and authorization

Sign-in can use passwords, passwordless flows, social logins, enterprise SSO, passkeys and MFA. MFA methods include authenticator apps, SMS, built-in authenticators, security keys and email. SAML 2.0 and OpenID Connect cover common enterprise federation requirements. Directory synchronization, lifecycle provisioning and adaptive access policies add controls for organizations with changing users and risk conditions.

B2B tenant administration

User invitations, groups, tenant-specific MFA and session policies, plus tenant-level IP and domain restrictions give each customer organization its own administrative boundaries. This is a meaningful advantage for multi-tenant SaaS products that must delegate control without exposing neighboring tenants. The embedded portal also supports customer self-service instead of routing every account change through your support team.

Integrations and operations

Named integrations include Slack, Microsoft Teams, Salesforce, HubSpot and Twilio, with custom webhooks for other services. Frontegg says data is encrypted at rest and in transit and lists WAF, firewalls, intrusion detection, logging, monitoring and alerts for infrastructure security. Its Trust Center states compliance with SOC 2 Type II and ISO 27001, and the company says it performs penetration tests twice a year.

Email handling has material caveats. Only one external provider can be configured at a time, limited to Amazon SES, SendGrid or Mailgun. Using Frontegg as the provider caps sending at 100 emails per day and does not allow template or subject-line customization. Products with branded, high-volume or multi-provider messaging should plan around an external provider.

Pricing

Pay as you go

The free plan costs nothing, billed at $0/month. It includes 7,500 monthly active users, five enterprise connections for SSO or SCIM, unlimited organizations and a custom domain. This is a substantial starting allowance for an early B2B product, although the MAU and connection caps become relevant as adoption and enterprise sales grow.

Enterprise

Enterprise uses custom pricing and requires contacting sales. It includes everything in Pay as you go, with add-ons, multiple environments, advanced fraud protection, a 99.99% uptime SLA and Premium Support. Choose it when production assurance, separated environments or higher-touch support justify a negotiated contract; smaller teams should first determine whether the free allowance covers their launch.

The pricing comparison also lists community support and email support, while Premium Support is specified for Enterprise. Review email requirements and connection growth before committing to a plan.

Platforms

Frontegg supports Android, iOS, web and API integrations. Mobile documentation covers Android Kotlin and iOS Swift for step-up authentication, while the web and backend SDK choices accommodate common JavaScript frameworks and server-side implementations.

Who it's for

Frontegg is best for SaaS teams building B2B applications with multiple customer organizations, delegated administration and enterprise identity requirements. Developers and architects get SDK and API options; infosec teams get federation, adaptive access and infrastructure controls; customer-success and support teams benefit from the embedded portal; product teams can use feature and subscription controls.

It is less suitable when the requirement is a narrowly focused login widget, when custom email branding is essential but an external provider cannot be used, or when five enterprise connections and 7,500 MAUs will quickly be exceeded without an Enterprise budget.

Pros and cons

• Pro: Authentication, authorization and tenant administration are delivered together, reducing the need to stitch separate customer IAM and B2B controls.
• Pro: Tenant-specific policies, IP and domain restrictions, invitations and groups support delegated enterprise administration.
• Pro: The free plan includes 7,500 MAUs, five SSO/SCIM connections, unlimited organizations and a custom domain.
• Con: Only one external email provider may be configured, limiting multi-provider architectures.
• Con: Built-in email is restricted to 100 messages per day and fixed templates and subject lines.
• Con: Enterprise pricing is custom, so costs for multiple environments, fraud protection and SLA-backed support require a sales discussion.

Alternatives

Clerk is a better fit for teams wanting a freemium developer identity service with a Hobby tier offering 50,000 MRU per app, three dashboard seats and three social connections. Choose Descope instead if open-source SDKs and a Free Forever plan with 7,500 MAUs, 10 active tenants and three SSO connections are priorities.

FusionAuth suits organizations that prefer self-hosting with unlimited core authentication in its free Community plan. Google Cloud Identity is an option for teams seeking annual enterprise security, automated provisioning and context-aware controls at $6 a month. miniOrange Identity and Access Management offers a free customer-IAM tier with social logins and a free trial on paid options.

WorkOS is worth considering for teams that want separate products such as AuthKit or Radar with usage-based terms. Auth0 Guardian is a narrower mobile MFA choice with a free tier for 25,000 MAUs. AWS IAM Access Analyzer is a free alternative for validating IAM policies rather than providing a complete customer IAM platform.

For broader category browsing, see Identity and Access Management Software, Single Sign-On Software and Customer Identity and Access Management Software.

Verdict

Choose Frontegg for a B2B customer-facing product that needs tenant-aware authentication, authorization and self-service administration in one platform. Its free allowance and broad controls make it a credible starting point, but teams should look elsewhere if branded or high-volume email is central, if they need more than five enterprise connections without a custom contract, or if a simpler identity layer will do.