Auth0 vs Firebase: Pricing Comparison 2026
Side-by-side pricing comparison of Auth0 and Firebase. See all plans, features, and costs at a glance.
Bottom line: Both Auth0 and Firebase offer free plans. Auth0 has 4 pricing tiers while Firebase has 2.
Last updated: March 16, 2026
Auth0 vs Firebase: Quick Pricing Facts
| Feature | Auth0 | Firebase |
|---|---|---|
| Starting Price | $35/mo | Custom pricing |
| Number of Plans | 4 | 2 |
| Free Tier | Yes | Yes |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
Auth0 and Firebase are both priced at $35/mo, making them equally accessible Dev Tools. Together they offer 6 pricing plans with 35 features compared, so the best choice comes down to which features match your needs.
Both tools offer free plans, making them accessible for teams on a budget.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your Dev Tools needs.
| Pricing Plans |  Auth0 Try it free |  Firebase Try it free |
|---|---|---|
| Tier 1 | Free $0/monthCheapest Includes
| No-cost (Spark plan) $0/monthCheapest Includes
|
| Tier 2 | Essentials $35/monthCheapest $4 / year Includes
| Pay as you go (Blaze plan)Popular Custom pricing Includes
|
| Tier 3 | Professional $240/monthCheapest $28 / year Includes
| — |
| Tier 4 | Enterprise Custom pricing Includes
| — |
Swipe to compare plans →
Auth0
Auth0 offers a free plan, offers 4 tiers vs 2.
Based on pricing data only. Review the full comparison below for your specific needs.
Best value: Auth0
Try Auth0 freeWhich Should You Choose?
Choose Auth0 if:
- •You prefer Auth0's free tier features—Up to 25,000 monthly active users, 1 Custom Domain
- •You need 4 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
- •You want more features built-in—Auth0 offers 23 additional features across its plans
Choose Firebase if:
- •You prefer Firebase's free tier features—Generous no-cost usage limits, No payment method needed
- •You prioritize Firebase's user experience and interface over price (both tools are similarly priced)
- •Firebase's 2-tier usage-based structure gives clearer cost visibility for budget planning
Both Auth0 and Firebase offer free plans [1], eliminating cost barriers for evaluation. This means you can test both tools thoroughly with your actual workflows before any financial commitment. The free tiers differ in scope: Auth0 includes 10 features, while Firebase includes 3 features. Evaluate which free tier matches your evaluation needs before deciding to upgrade. Your best approach is to activate both free trials and evaluate which tool's workflow, integrations, and user experience align better with your team's needs before committing to paid plans.
Frequently Asked Questions: Auth0 vs Firebase
How many pricing plans does Auth0 have vs Firebase?
Does Auth0 or Firebase offer a free plan?
Can I save money by paying annually for Auth0 or Firebase?
What is the most popular Firebase plan?
Does Auth0 or Firebase offer custom enterprise pricing?
How do Auth0 and Firebase compare for Dev Tools?
Sources
- Auth0 Official Pricing— Vendor pricing page
- Firebase Official Pricing— Vendor pricing page
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