Sign-in and user management, including organisations for B2B apps.
Clerk handles sign-up, sign-in and user management for you, with ready-made screens you drop into your app. It supports organisations, so business customers can invite their team members, which is why it appears in our B2B build.
Good for
Watch out for
| Build | Role | Plan | Monthly | Notes |
|---|---|---|---|---|
| Auth-heavy B2B app (Neon + Clerk) | AuthOrgs, MFA, branding removed | Hobby, then Pro $25/mo ($20/mo billed annually) | £18.72 (annual £14.98) | Hobby: no MFA, fixed 7-day session, 100 MROs, max 20 members per org. Pro includes 50,000 MRU, then $0.02/MRU. VAT unknown |
| Auth-heavy B2B app (Neon + Clerk) | Auth add-on (optional)Unlimited members per org, verified domains, custom roles | $100/mo ($85/mo billed annually) | £74.89 (annual £63.66) | Extra MROs $1/mo each |
Clerk vs Supabase Auth vs Auth0 for sign-in
Hobby (free, 50,000 retained users) or Pro $25/mo ($20/mo billed annually), 50,000 included then $0.02 each
Hobby has no multi-factor sign-in and keeps Clerk branding; both need Pro. Past 50,000 retained users, each extra user is $0.02 a month.
Neon
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Used in 1 build, compared in 1
Stripe
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Good for: Subscriptions and one-off payments where you are happy to be the seller
Used in 4 builds, compared in 1
Vercel
Hosting for web apps, built around Next.js.
Good for: Next.js apps, which it runs with no setup
Used in 9 builds, compared in 1
Postmark
Sends app emails, with a paid plan sized for growing apps.
Good for: Apps that have outgrown free email plans
Used in 1 build, compared in 1
GitHub
Hosts your code; used here for secret and dependency checks.
Good for: Keeping your code safe and versioned
Used in 1 build