Auth0 vs Fillwarden
Both sit in security & privacy. Here is how they differ on the things you can actually check.
On price: Fillwarden starts $6 a month cheaper than Auth0 ($29 against $35, 17% less) on its Pro tier. Both figures were read from the vendors' own pricing pages on the dates shown below.
Auth0
auth0.com
Authentication, authorisation, SSO and enterprise connections with extensive customisation. Okta-owned.
Fillwarden
fillwarden.pages.dev
For B2B software teams answering enterprise security questionnaires. Completed questionnaires you import become an answer library; Fillwarden then matches each question in a buyer's Excel or CSV file, such as a SIG Lite or CAIQ, to your past answers, marks each row as a strong match, one to check or no match, and gives back the buyer's own workbook filled with its formatting kept. It does not write new answers or read PDF or Word questionnaires, and files are read and saved in your browser rather than uploaded. Free covers an unlimited library and matching, with up to 20 answers written into each downloaded file; Pro writes every matched answer, with a 14-day money-back promise.
| Auth0 | Fillwarden | |
|---|---|---|
| Entry price | $35/mo | $29/mo |
| Entry plan | Essentials | Pro |
| Paid annually | — | — |
| Price checked | 19 Oct 2026 | 4 Nov 2026 |
| Pricing model | Free plan | Free plan |
| Free plan | Yes | Yes |
| Category | Security & Privacy | Security & Privacy |
| Around since | 2013 | — |
Every price here was read from the vendor's own pricing page, most recently on 4 Nov 2026. Entry tier only — vendors change pricing without notice.
Auth0 vs Fillwarden, answered
- Is Auth0 cheaper than Fillwarden?
- No — Fillwarden is the cheaper entry point, at $29 a month against Auth0's $35, 17% less.
- Do Auth0 or Fillwarden have a free plan?
- Both do. Auth0 and Fillwarden each publish an ongoing free tier rather than a time-limited trial.
- What is the difference between Auth0 and Fillwarden?
- Auth0: Authentication, authorisation, SSO and enterprise connections with extensive customisation. Okta-owned. Fillwarden: For B2B software teams answering enterprise security questionnaires. Completed questionnaires you import become an answer library; Fillwarden then matches each question in a buyer's Excel or CSV file, such as a SIG Lite or CAIQ, to your past answers, marks each row as a strong match, one to check or no match, and gives back the buyer's own workbook filled with its formatting kept. It does not write new answers or read PDF or Word questionnaires, and files are read and saved in your browser rather than uploaded. Free covers an unlimited library and matching, with up to 20 answers written into each downloaded file; Pro writes every matched answer, with a 14-day money-back promise.
