Which is cheaper, Auth0 (B2C) or Stack Auth?

Auth0 (B2C) is 1.4x cheaper than Stack Auth. Auth0 (B2C) starts at $0/mo, Stack Auth starts at $0/mo.

Does Auth0 (B2C) have a free tier?

Yes, Auth0 (B2C) offers a free tier with MAUs: 25000, organizations: 5, enterpriseConnections: 1, m2mTokens: 1000, tenants: 1, adminContributors: 3, logRetentionDays: 1, actionsAndForms: 5.

What is the switching cost between Auth0 (B2C) and Stack Auth?

Auth0 (B2C) has significant switching cost. Stack Auth has drop-in switching cost. Stack Auth is easier to switch away from.

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Auth0 (B2C) vs Stack Auth

Auth

Auth0 (B2C)

← More affordable

Flexible authentication and authorization platform for B2C applications, by Okta

Switching Cost: significant

Stack Auth

Open-source Auth0/Clerk alternative with managed hosting or free self-hosting, built for Next.js

Switching Cost: drop-in

Analysis

The pricing gap between Auth0 (B2C) and Stack Auth runs about 1.4x — significant consideration for scaling.

Their pricing models diverge: Auth0 (B2C) uses tiered, while Stack Auth operates on a per-seat basis.

Teams prioritizing vendor flexibility should choose {winner} — lower switching costs preserve your future options.

Bottom Line

Teams prioritizing vendor flexibility should choose {winner} — lower switching costs preserve your future options.

Price Difference

1.4x

Auth0 (B2C) is cheaper by $14/mo

Pricing Model

Different

Tools charge using different pricing philosophies

Switching Costs

Stack Auth

Lower switching costs for easier migration

Related Guides

Alternatives

Auth0 (B2C) Alternatives

Alternatives

Stack Auth Alternatives

Best Free

Best Free Auth