Stytch vs BuildBase: the auth decision you cannot reverse cheaply
Stytch is an auth vendor you add to a stack. BuildBase is a backend that includes auth. The difference that matters is what it costs to change your mind later.
In short
Stytch sells authentication as its own product, with organizations, RBAC, SSO and MFA included and 10,000 monthly active users free. BuildBase includes auth as one of 20 modules beside billing, email and workflows, with no SSO, no MFA and no free plan. Pick Stytch if your backend works. Pick BuildBase if it does not.
Most comparisons in this category argue about features, and features are the part you can change. Here is the thing that does not change: whichever vendor holds your users' identities is the one you cannot leave on a quiet afternoon.
Billing you can swap. Email you can swap in a day. Auth holds the records every other table in your product joins against, and the password hashes may not be yours to export. Ask any auth vendor, us included, how you get your users out before you put them in. Stytch answers that question on its own pricing page, which is more than most do. That asymmetry, not the feature grid, is what this decision is actually about.
The one-paragraph answer
Pick Stytch if your backend exists and works and the missing piece is authentication. Adding a dedicated auth vendor to a working stack is an additive change, and additive changes are reversible in a way that architectural ones are not. Pick BuildBase if you are standing up the backend itself - if auth, workspaces, roles and billing are all still on the list - because those four systems have to agree about who a user is and what an organization is, and having them agree by default is worth more than any single one of them being best in class.
What each one is
Stytch sells authentication as its own product. You keep your database, your billing and your application code, and Stytch holds the identity layer and the flows around it. For B2B that layer is not thin: organizations, role-based access control, SSO and per-organization MFA controls are all part of it.
BuildBase includes auth as one of 20 modules on a single instance. A user belongs to a workspace, the workspace has roles, the roles gate permissions, and the subscription that defines what the workspace can do lives in the same system. None of those four things have to be taught about each other.
So the difference is not who has organizations and roles. Both do. It shows up at the join between identity and everything that is not identity. With Stytch, their organization is the tenant and your application owns the mapping from it to the subscription, the usage quota and the emails that tenant receives. You maintain that mapping for as long as the product lives. With a bundle, the workspace that signs in is the same record that gets billed, and there is no mapping because there are not two systems.
That is the same trade every bundle makes, and it cuts both ways. Fewer agreements to maintain, less freedom to replace one part.
Pricing
Stytch figures verified 21 September 2026 against stytch.com/pricing.
Stytch starts at $0. The always-free tier covers 10,000 monthly active users, unlimited organizations, 5 SSO or SCIM connections and 1,000 machine-to-machine tokens. Past that you pay for what you use, and their page is explicit that there are no hard caps and no pricing cliffs. An additional SSO or SCIM connection is $125. Removing their branding from emails and the login experience is $99. Enterprise is custom. The per-user rate past 10,000 sits behind a calculator rather than a published number, so it is not quoted here.
Our side, which does not need re-verifying because it comes from our own published plans: there is no free plan, and there is a 7-day trial that does not ask for a card. Launch is $49 a month and includes 25,000 monthly active users, 1,000 workspaces, 10 GB of storage and 3 team seats. Grow is $99 and Scale is $199. Storage is the only quota that bills over the allowance, at $0.10 per GB.
Put those side by side honestly. For authentication alone, Stytch is free up to 10,000 users and we cost $49 from the first one. The $49 is not buying auth. It is buying the other 19 modules, and if you do not need them it is the wrong $49 to spend.
| Feature | BuildBase | Stytch |
|---|---|---|
| Scope | Auth inside a 20-module backend | Authentication as its own product |
| Free tier | No free plan, 7-day trial, no card | 10,000 MAU, unlimited organizations |
| Entry paid plan | $49/mo (Launch), 25,000 MAU | $0 base, usage billed past the free tier |
| Auth methods | 8, dashboard toggles | Magic links, OTP, passwords, OAuth, SSO |
| SAML and MFA | Not available, on any plan | Both. 5 SSO or SCIM connections free, then $125 each |
| Billing, email, workflows | Included, same system as auth | Not part of the product |
| Organizations and RBAC | Included, same system as billing | Included, unlimited organizations |
What you get on our side of the table
Eight user-facing auth methods, all toggled from the dashboard rather than configured in code: Email/Password, Google, LinkedIn, GitHub, Microsoft, Magic Link, Passkeys and OAuth 2.0. Turning one on is a switch, not a deploy, which means adding magic link does not touch your Next.js code at all. Adding passkeys does not either, though it does make you settle your auth domain first.
Sessions run 30 days by default, configurable per session and capped at 180 days. Permissions refresh hourly, so a role change in the dashboard reaches a live session on the next refresh rather than the next click. That hourly number surprises people often enough to have its own guide, and it is the kind of detail worth knowing before you choose rather than after.
Every BuildBase app is also a full OAuth 2.0 authorization server, with dynamic client registration, token introspection, revocation and PKCE. That matters more than it used to, because it is what lets an AI agent hold scoped access to a user's account without holding their credentials.
Where Stytch wins
They ship SAML and MFA, and we ship neither. That is the honest headline here. Stytch includes five SSO or SCIM connections on its free tier and per-organization MFA controls. If your buyer is an IT department with a security questionnaire, it asks for both, and we lose that deal on the first page. Check their current list against your requirement before you read anything else on this page.
For auth alone they are cheaper, and it is not close. Ten thousand users, unlimited organizations and RBAC for $0, against $49 a month from us. If authentication is the only thing you are shopping for, the price decides it.
Adopting them is reversible; adopting us is not. Bolting an auth vendor onto a working stack changes one layer. Moving to a bundled backend changes the shape of your application. If your stack already works, the bundle is asking you to pay an architectural cost to solve a component-sized problem, and that is a bad trade whoever is selling it.
We have a ceiling and they do not have ours. Our connection-pool architecture tops out at roughly 1,000 organizations before it becomes the constraint, which is documented rather than hidden. A dedicated auth service is not carrying our multi-tenant database model, so it does not inherit that particular wall.
When each one is wrong
Stytch is the wrong call if authentication is one of several backend systems you still have to build. It will give you users, organizations and roles, and give you them well. You would still be writing subscriptions, usage metering, transactional email and the automation around all three, and then keeping each of them in agreement with an organization that lives in someone else's system. The cost of building auth yourself works through that arithmetic, and auth is rarely the expensive line.
BuildBase is the wrong call if your backend is built and running. Replacing a working identity layer to get bundled workspaces is the same mistake in the other direction. The bundle pays off while you are choosing the pieces, not after you have chosen them.
And both are the wrong call if the real question is enterprise identity. Neither a mid-market auth vendor comparison nor this post answers "what do we do when the buyer's IT team sends a questionnaire", and choosing on price when that is the actual requirement is how teams end up migrating twice.
If you are choosing more broadly
This is a two-name comparison, and the auth field is wider than two names. Best auth for B2B SaaS sorts the field by whether enterprise single sign-on is on your path yet, which is the question that actually splits it. If the shortlist is really about the whole backend rather than auth alone, best multi-tenant backend is the closer comparison.