Auth & Backend · side by side
Better Auth vs Transmit Security
Compare Better Auth, 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.
Better Auth
1
Transmit Security
50K
Better Auth
$20 / mo
Pro · 1 servers
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 | Better Auth | Transmit Security |
|---|---|---|
| Provider | Open source | Transmit Security |
| Billing unit | servers | monthly active users |
| Plan at selected usage | Pro | Custom / unlisted usage pricing |
| Monthly estimate | $20/mo | Custom / not listed |
| Workload | 1 servers | 50K monthly active users |
| Free access | Free, open source | Custom trial |
| Published plans | Starter, Pro, 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
- Better Auth
- Open source
- Transmit Security
- Transmit Security
Billing unit
- Better Auth
- servers
- Transmit Security
- monthly active users
Plan at selected usage
- Better Auth
- Pro
- Transmit Security
- Custom / unlisted usage pricing
Monthly estimate
- Better Auth
- $20/mo
- Transmit Security
- Custom / not listed
Workload
- Better Auth
- 1 servers
- Transmit Security
- 50K monthly active users
Free access
- Better Auth
- Free, open source
- Transmit Security
- Custom trial
Published plans
- Better Auth
- Starter, Pro, Enterprise
- Transmit Security
- Full Mosaic Platform, Mosaic for Identity, Mosaic for Identity Fraud and Threat Detection and Response, Mosaic for Identity Verification
Prices checked
- Better Auth
- 2026-10-08
- Transmit Security
- 2026-10-08
Auth & Backend monthly cost
Better Auth: $20Transmit 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 | Better Auth | Transmit Security |
|---|---|---|
| Dashboard seats | Unlimited | Not listed |
| Audit log | 20,000 / month then $0.0001 / event | Not listed |
| Audit log retention | 7 days | Not listed |
| Security detection | 10,000 / month then $0.001 / event | Not listed |
| Transactional Email | $0.001 / email | Not listed |
| Transactional SMS | $0.09 / SMS | Not listed |
| Self-service SSO | 1 connection then $50/month per connection | Not listed |
| Directory Sync | 1 connection then $50/month per connection | Not listed |
| User management | Not listed | |
| Abuse protection | Not listed | |
| Email templates | Not listed | |
| Custom domain for Dashboard | $25 / month add-on | Not listed |
| Log drain | $25 / month add-on | Not listed |
| Community Support | Not listed | |
| Email Support | Not listed | |
| Slack Support | Not listed | |
| Implementation assistance | Not listed |
Dashboard seats
- Better Auth
- Unlimited
- Transmit Security
- Not listed
Audit log
- Better Auth
- 20,000 / month then $0.0001 / event
- Transmit Security
- Not listed
Audit log retention
- Better Auth
- 7 days
- Transmit Security
- Not listed
Security detection
- Better Auth
- 10,000 / month then $0.001 / event
- Transmit Security
- Not listed
Transactional Email
- Better Auth
- $0.001 / email
- Transmit Security
- Not listed
Transactional SMS
- Better Auth
- $0.09 / SMS
- Transmit Security
- Not listed
Self-service SSO
- Better Auth
- 1 connection then $50/month per connection
- Transmit Security
- Not listed
Directory Sync
- Better Auth
- 1 connection then $50/month per connection
- Transmit Security
- Not listed
User management
- Better Auth
- Transmit Security
- Not listed
Abuse protection
- Better Auth
- Transmit Security
- Not listed
Email templates
- Better Auth
- Transmit Security
- Not listed
Custom domain for Dashboard
- Better Auth
- $25 / month add-on
- Transmit Security
- Not listed
Log drain
- Better Auth
- $25 / month add-on
- Transmit Security
- Not listed
Community Support
- Better Auth
- Transmit Security
- Not listed
Email Support
- Better Auth
- Transmit Security
- Not listed
Slack Support
- Better Auth
- Transmit Security
- Not listed
Implementation assistance
- Better Auth
- Transmit Security
- Not listed
Showing 15 of 17
Which authentication & backend providers fit your needs?
Better Auth features & plan notes
- TypeScript-first
- Plugins
- Self-hosted
- Unlimited seats
- 20,000 audit logs / month
- then $0.0001 per event
- 10,000 security detections / month
- then $0.001 per event
- Self-service SSO
- 1 connection, then $50/month per connection
- Directory Sync
- Transactional email & SMS
- $0.001 per email, $0.09 per SMS
- Email templates & abuse protection
- Email support
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 pricingBetter Auth vs Transmit Security — FAQ
Better Auth: $20/month on Pro at 1 servers. 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.
TypeScript-first, Plugins, Self-hosted. Free access: Free, open source. 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.