Auth & Backend · side by side
Clerk vs Transmit Security
Compare Clerk, Transmit Security by active-user allowances, social login, MFA, SSO, organizations and audit logs.
Auth & Backend pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Clerk
25K
Transmit Security
50K
Clerk
$25 / mo
Pro · 25K MAUs
Transmit Security
Custom / not listed
Custom / unlisted usage pricing · 50K monthly active users
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Auth & Backend overview & pricing
| Auth & Backend | Clerk | Transmit Security |
|---|---|---|
| Provider | Clerk | Transmit Security |
| Billing unit | MAUs | monthly active users |
| Plan at selected usage | Pro | Custom / unlisted usage pricing |
| Monthly estimate | $25/mo | Custom / not listed |
| Workload | 25K MAUs | 50K monthly active users |
| Free access | 10,000 MAUs | Custom trial |
| Published plans | Hobby, Pro, Business, Enterprise | Full Mosaic Platform, Mosaic for Identity, Mosaic for Identity Fraud and Threat Detection and Response, Mosaic for Identity Verification |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Clerk
- Clerk
- Transmit Security
- Transmit Security
Billing unit
- Clerk
- MAUs
- Transmit Security
- monthly active users
Plan at selected usage
- Clerk
- Pro
- Transmit Security
- Custom / unlisted usage pricing
Monthly estimate
- Clerk
- $25/mo
- Transmit Security
- Custom / not listed
Workload
- Clerk
- 25K MAUs
- Transmit Security
- 50K monthly active users
Free access
- Clerk
- 10,000 MAUs
- Transmit Security
- Custom trial
Published plans
- Clerk
- Hobby, Pro, Business, Enterprise
- Transmit Security
- Full Mosaic Platform, Mosaic for Identity, Mosaic for Identity Fraud and Threat Detection and Response, Mosaic for Identity Verification
Prices checked
- Clerk
- 2026-10-08
- Transmit Security
- 2026-10-08
Auth & Backend monthly cost
Clerk: $25Transmit Security: Not priced
Different workloads, separate estimates
Check how each provider defines an active user and separates consumer identity from enterprise organizations. SAML, MFA, custom domains and audit logs can be gated behind higher plans. A backend platform can also charge separately for storage, functions and traffic.
Auth & Backend feature comparison
| Auth & Backend | Clerk | Transmit Security |
|---|---|---|
| Base price | $25/mo, $20/mo billed annually | Not listed |
| Included applications | Unlimited | Not listed |
| Included MRUs | 50,000 MRUs included per app; 50,001 - 100,000 $0.02/mo each; 100,001 - 1,000,000 $0.018/mo each; 1,000,001 - 10,000,000 | Not listed |
| Dashboard seats | Up to 3 | Not listed |
| Remove Clerk branding | Not listed | |
| Social connections | Unlimited | Not listed |
| Usernames | Not listed | |
| Passwords | Not listed | |
| Email codes | Not listed | |
| Email links | Not listed | |
| SMS codes | Per SMS fees apply | Not listed |
| Sign in tokens | Not listed | |
| Web3 wallets | Not listed | |
| Automatic account linking | Not listed | |
| User metadata | Not listed | |
| Webhooks for data sync | Not listed | |
| Passkeys | Not listed | |
| Biometric sign-in | Not listed | |
| Custom password requirements | Not listed | |
| Custom email templates | Not listed | |
| Multifactor authentication (MFA) | Not listed | |
| SSO connections | 1 connection included per app; 2 - 15 $75/mo each; 16 - 100 $60/mo each; 101+ Contact us | Not listed |
| Directory Sync connections | 1 connection included per app; 2 - 15 $75/mo each; 16 - 100 $60/mo each; 101+ Contact us | Not listed |
| API Keys | Creations: 1,000 Included per month, 1,001+ $0.001 each; Verifications: 100,000 Included per month, 100,001+ $0.00001 ea | Not listed |
| M2M Tokens | Creations: 2,500 Included per month, 2,501+ $0.001 each; Verifications: 100,000 Included per month, 100,001+ $0.00001 ea | Not listed |
| Account lockout / brute-force protection | Not listed | |
| Bot protection | Not listed | |
| Block email subaddresses | Not listed | |
| Block disposable email addresses | Not listed | |
| Require invitations | Not listed | |
| User bans | Not listed | |
| Allowlist / blocklist | Not listed | |
| Custom session tokens | Not listed | |
| Custom JWT templates | Not listed | |
| Custom session duration | Not listed | |
| Device tracking and revocation | Not listed | |
| Simultaneous sessions | Not listed | |
| Satellite domains | $10/mo each | Not listed |
| Application Logs | 7 day retention | Not listed |
| Admin Logs | Not listed | |
| Full data exports | Not listed | |
| Community support | Not listed | |
| Email support | Not listed | |
| GDPR / DPAs | Not listed | |
| SOC2 report | Not listed | |
| HIPAA compliance | Not listed |
Base price
- Clerk
- $25/mo, $20/mo billed annually
- Transmit Security
- Not listed
Included applications
- Clerk
- Unlimited
- Transmit Security
- Not listed
Included MRUs
- Clerk
- 50,000 MRUs included per app; 50,001 - 100,000 $0.02/mo each; 100,001 - 1,000,000 $0.018/mo each; 1,000,001 - 10,000,000
- Transmit Security
- Not listed
Dashboard seats
- Clerk
- Up to 3
- Transmit Security
- Not listed
Remove Clerk branding
- Clerk
- Transmit Security
- Not listed
Social connections
- Clerk
- Unlimited
- Transmit Security
- Not listed
Usernames
- Clerk
- Transmit Security
- Not listed
Passwords
- Clerk
- Transmit Security
- Not listed
Email codes
- Clerk
- Transmit Security
- Not listed
Email links
- Clerk
- Transmit Security
- Not listed
SMS codes
- Clerk
- Per SMS fees apply
- Transmit Security
- Not listed
Sign in tokens
- Clerk
- Transmit Security
- Not listed
Web3 wallets
- Clerk
- Transmit Security
- Not listed
Automatic account linking
- Clerk
- Transmit Security
- Not listed
User metadata
- Clerk
- Transmit Security
- Not listed
Webhooks for data sync
- Clerk
- Transmit Security
- Not listed
Passkeys
- Clerk
- Transmit Security
- Not listed
Biometric sign-in
- Clerk
- Transmit Security
- Not listed
Custom password requirements
- Clerk
- Transmit Security
- Not listed
Custom email templates
- Clerk
- Transmit Security
- Not listed
Multifactor authentication (MFA)
- Clerk
- Transmit Security
- Not listed
SSO connections
- Clerk
- 1 connection included per app; 2 - 15 $75/mo each; 16 - 100 $60/mo each; 101+ Contact us
- Transmit Security
- Not listed
Directory Sync connections
- Clerk
- 1 connection included per app; 2 - 15 $75/mo each; 16 - 100 $60/mo each; 101+ Contact us
- Transmit Security
- Not listed
API Keys
- Clerk
- Creations: 1,000 Included per month, 1,001+ $0.001 each; Verifications: 100,000 Included per month, 100,001+ $0.00001 ea
- Transmit Security
- Not listed
M2M Tokens
- Clerk
- Creations: 2,500 Included per month, 2,501+ $0.001 each; Verifications: 100,000 Included per month, 100,001+ $0.00001 ea
- Transmit Security
- Not listed
Account lockout / brute-force protection
- Clerk
- Transmit Security
- Not listed
Bot protection
- Clerk
- Transmit Security
- Not listed
Block email subaddresses
- Clerk
- Transmit Security
- Not listed
Block disposable email addresses
- Clerk
- Transmit Security
- Not listed
Require invitations
- Clerk
- Transmit Security
- Not listed
User bans
- Clerk
- Transmit Security
- Not listed
Allowlist / blocklist
- Clerk
- Transmit Security
- Not listed
Custom session tokens
- Clerk
- Transmit Security
- Not listed
Custom JWT templates
- Clerk
- Transmit Security
- Not listed
Custom session duration
- Clerk
- Transmit Security
- Not listed
Device tracking and revocation
- Clerk
- Transmit Security
- Not listed
Simultaneous sessions
- Clerk
- Transmit Security
- Not listed
Satellite domains
- Clerk
- $10/mo each
- Transmit Security
- Not listed
Application Logs
- Clerk
- 7 day retention
- Transmit Security
- Not listed
Admin Logs
- Clerk
- Transmit Security
- Not listed
Full data exports
- Clerk
- Transmit Security
- Not listed
Community support
- Clerk
- Transmit Security
- Not listed
Email support
- Clerk
- Transmit Security
- Not listed
GDPR / DPAs
- Clerk
- Transmit Security
- Not listed
SOC2 report
- Clerk
- Transmit Security
- Not listed
HIPAA compliance
- Clerk
- Transmit Security
- Not listed
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Which authentication & backend providers fit your needs?
Clerk features & plan notes
- Prebuilt UI
- Organizations
- Everything in Hobby
- 50,000 MRU included per app (Additional $0.02/mo each)
- 1 SSO connection included (Additional $75/mo each)
- 1 Directory Sync connection included (Additional $75/mo each from January 1, 2027)
- Remove Clerk branding
- Multi-factor authentication (MFA)
- Satellite domains (Additional $10/mo each)
- Custom session lifetime
- Application Logs: 7 day retention
- SMS Authentication available
- Machine Authentication: API Keys & M2M Tokens included per month + extra
Transmit Security features & plan notes
- Passwordless
- Fraud & risk
- Enterprise CIAM
How to compare authentication & backend providers
Check how each provider defines an active user and separates consumer identity from enterprise organizations. SAML, MFA, custom domains and audit logs can be gated behind higher plans. A backend platform can also charge separately for storage, functions and traffic.
Browse Auth & Backend pricingClerk vs Transmit Security — FAQ
Clerk: $25/month on Pro at 25,000 MAUs. Transmit Security: custom or unlisted usage pricing at 50,000 monthly active users. Different billing units are not an equal-workload comparison. Estimates exclude unlisted add-ons and taxes.
No. Review each provider's active-user definition, external versus enterprise users, organization limits and machine-to-machine usage.
Review enterprise SSO, organizations, roles, audit logs, custom domains and support on the specific plan you intend to use.
Prebuilt UI, Organizations. Free access: 10,000 MAUs. Check plan-specific availability and current terms on the provider's official pricing page.
Passwordless, Fraud & risk, Enterprise CIAM. Free access: Custom trial. Check plan-specific availability and current terms on the provider's official pricing page.