Auth & Backend · side by side
Better Auth vs Lucia
Compare Better Auth, Lucia by active-user allowances, social login, MFA, SSO, organizations and audit logs.
Auth & Backend pricing calculator
1
Better Auth
Custom / not listed
Custom / unlisted usage pricing · 1 servers
Lucia
Custom / not listed
Custom / unlisted usage pricing · 1 servers
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 | Lucia |
|---|---|---|
| Provider | Open source | Open source |
| Billing unit | servers | servers |
| Plan at selected usage | Custom / unlisted usage pricing | Custom / unlisted usage pricing |
| Monthly estimate | Custom / not listed | Custom / not listed |
| Workload | 1 servers | 1 servers |
| Free access | Free, open source | Free, open source |
| Published plans | Starter, Pro, Enterprise | Not listed |
| Prices checked | 2026-10-08 | Not listed |
Provider
- Better Auth
- Open source
- Lucia
- Open source
Billing unit
- Better Auth
- servers
- Lucia
- servers
Plan at selected usage
- Better Auth
- Custom / unlisted usage pricing
- Lucia
- Custom / unlisted usage pricing
Monthly estimate
- Better Auth
- Custom / not listed
- Lucia
- Custom / not listed
Workload
- Better Auth
- 1 servers
- Lucia
- 1 servers
Free access
- Better Auth
- Free, open source
- Lucia
- Free, open source
Published plans
- Better Auth
- Starter, Pro, Enterprise
- Lucia
- Not listed
Prices checked
- Better Auth
- 2026-10-08
- Lucia
- Not listed
Auth & Backend monthly cost
Better Auth: Not pricedLucia: Not priced
Cost by servers
Cost curve data
| servers | Better Auth | Lucia |
|---|---|---|
| 0 | $0 | Not priced |
| 0 | $0 | Not priced |
| 1 | Not priced | Not priced |
| 1 | Not priced | Not priced |
| 2 | Not priced | Not priced |
| 5 | Not priced | Not priced |
| 10 | Not priced | Not priced |
0
- Better Auth
- $0
- Lucia
- Not priced
0
- Better Auth
- $0
- Lucia
- Not priced
1
- Better Auth
- Not priced
- Lucia
- Not priced
1
- Better Auth
- Not priced
- Lucia
- Not priced
2
- Better Auth
- Not priced
- Lucia
- Not priced
5
- Better Auth
- Not priced
- Lucia
- Not priced
10
- Better Auth
- Not priced
- Lucia
- Not priced
Which authentication & backend providers fit your needs?
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 pricing