Firebase Authentication vs Frontegg: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Firebase Authentication and Frontegg side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Firebase Authentication
Backend authentication by Google
Best for you if:
- • You want easy to implement
Frontegg
The identity layer for every SaaS entry point, securing access and enabling AI integration.
Best for you if:
- • You want streamlines identity management for SaaS products
| At a Glance | Firebase Authentication | Frontegg |
|---|---|---|
Starts at | Free plan | Free plan |
Category | Identity & Access Developer Tools | Identity & Access Low-Code Backend |
Rating | 4.9/5 G2 4.9 5 reviews | 4.8/5 G2 4.8 366 reviews |
Free plan | Yes | Yes |
Watch out for | Phone verification costs $0.01-$0.06 each. | Overage fees for MAU beyond 7,500 on PAYG |
Choose Firebase Authentication or Frontegg?
Choose Firebase Authentication if
- You want easy to implement
- You want multiple auth methods
Choose Frontegg if
- You want streamlines identity management for SaaS products
- You want reduces time spent on maintaining identity infrastructure
In-Depth Analysis
Firebase Authentication
Backend authentication by Google
Firebase Authentication's Spark plan is incredibly generous, offering 50,000 MAU for free, which is far more than many competitors.
Watch out
Phone verification costs $0.01-$0.06 each.
Strengths
- Pro: Easy to implement
- Pro: Multiple auth methods
- Pro: Free generous tier
- Pro: Good security
Weaknesses
- Con: Vendor lock-in
- Con: Limited customization
- Con: Part of Google ecosystem
Key features
Frontegg
The identity layer for every SaaS entry point, securing access and enabling AI integration.
Frontegg's 'Pay as you go' tier is very generous, offering 7,500 MAU and key features like SSO for $0/month, making it an excellent starting point for many.
Watch out
Overage fees for MAU beyond 7,500 on PAYG
Strengths
- Pro: Streamlines identity management for SaaS products
- Pro: Reduces time spent on maintaining identity infrastructure
- Pro: Facilitates secure integration with generative AI platforms
- Pro: Allows developers to focus on core product features
- Pro: Ensures robust security at all entry points
Weaknesses
- Con: Specific pricing details are not immediately available on the homepage
- Con: Requires integration into existing SaaS applications
- Con: May have a learning curve for new users
Key features
Plans and prices: Firebase Authentication vs Frontegg
| Tool | Plans and prices | Source |
|---|---|---|
| Firebase Authentication |
| firebase.google.com/products/auth read Oct 5, 2026 |
| Frontegg |
| frontegg.com/pricing read Oct 31, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Firebase Authentication pricing and Frontegg pricing.
Key Takeaways
Firebase Authentication
- Choose if you want backend authentication by Google
Frontegg
- Choose if you want the identity layer for every SaaS entry point, securing access and enabling AI integration
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- User ratings rest on too few reviews to rank (4.9/5 from 5 reviews for Firebase Authentication, 4.8/5 from 366 reviews for Frontegg; we compare ratings only above 20 reviews on both sides).
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Firebase Authentication and Frontegg compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. User ratings rest on too few reviews to rank (4.9/5 from 5 reviews for Firebase Authentication, 4.8/5 from 366 reviews for Frontegg; we compare ratings only above 20 reviews on both sides). Both have a free plan.
What are Firebase Authentication and Frontegg used for?
Firebase Authentication: Backend authentication by Google. Frontegg: The identity layer for every SaaS entry point, securing access and enabling AI integration.
What does Firebase Authentication cost vs Frontegg?
Firebase Authentication has no public paid-plan price on file. Frontegg has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 31, 2026.
What's the main difference between Firebase Authentication and Frontegg?
Firebase Authentication's main strength: easy to implement. Frontegg's main strength: streamlines identity management for SaaS products.