Firebase Authentication

Google-backed auth with generous free tier for mobile and web

Firebase Authentication vs Inngest: Full Comparison (2026)

Pricing, features, scores, and a clear verdict on which one is right for you.

The bottom line

Firebase Authentication positions itself as "google-backed auth with generous free tier for mobile and web" while Inngest goes after "durable workflows for serverless" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but Firebase Authentication charges per mau while Inngest charges per operation — a meaningful difference for larger teams. Firebase Authentication (founded 2011) has had more time to build out its ecosystem and integrations, while Inngest (2021) tends to move faster on modern UX and newer workflows.

At a glance

	Firebase Authentication	Inngest
Our score	76/100	85/100
Starting price	Free	Free
Free tier	Yes	Yes
Best for	Google-backed auth with generous free tier for mobile and web	Durable workflows for serverless

Pricing comparison

Firebase Authentication

Free tier available

Spark (Free)Free

Blaze (Pay-as-you-go)$null/mo

Pricing verified 2026-04-16

Inngest

Free tier available

FreeFree

Starter$25/mo

Team$150/mo

Pricing verified 2026-04-16

Calculate your cost

How many developers?10

1500

Firebase AuthenticationUnknown

Contact sales

InngestUnknown

Contact sales

Try Firebase Authentication free →Try Inngest free →

Feature comparison

core

Feature	Firebase Authentication	Inngest
Email/password	Yes	No
Google OAuth	Yes	No
Apple OAuth	Yes	No
Phone SMS	Yes	No
Anonymous auth	Yes	No
Durable workflows	No	Yes
Step functions	No	Yes
Scheduled jobs	No	Yes
Event-driven triggers	No	Yes
Fan-out	No	Yes

advanced

Feature	Firebase Authentication	Inngest
Multi-tenancy	Blaze	No
SAML SSO	Blaze ($0.015/MAU)	No
Custom claims	Yes	No
App Check	Yes	No
Blocking functions	Yes	No
Retries with backoff	No	Yes
Cancellation	No	Yes
Concurrency controls	No	Yes
Batching	No	Yes
Sleep/wait for event	No	Yes

integrations

Feature	Firebase Authentication	Inngest
Firebase (all products)	Yes	No
Google Cloud	Yes	No
Flutter	Yes	No
Android/iOS SDKs	Yes	No
Web SDK	Yes	No
Next.js	No	Yes
Vercel	No	Yes
Netlify	No	Yes
AWS Lambda	No	Yes
Express	No	Yes

Ratings breakdown

Firebase Authentication

Ease of use

8/10

Value for money

9/10

Features

7/10

Support

6/10

Inngest

Ease of use

9/10

Value for money

9/10

Features

8/10

Support

9/10

What the data tells us

Key capabilities you'd miss

Choosing Firebase Authentication means going without Durable workflows, Step functions, Scheduled jobs (which Inngest offers). Choosing Inngest means losing Email/password, Google OAuth, Apple OAuth. These are the features that typically drive the final decision — check whether your workflow depends on any of them before committing.

What company size tells you

Firebase Authentication (100,000+ employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. Inngest (1-10 employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.

Choose Firebase Authentication if...

You want a free tier to get started
You value an intuitive, easy-to-use interface
Getting strong value for money is a priority

Try Firebase Authentication free →

Choose Inngest if...

You want a free tier to get started
You value an intuitive, easy-to-use interface
Getting strong value for money is a priority

Try Inngest free →

Frequently asked questions

Is Firebase Authentication or Inngest better?

Inngest scores 85/100 compared to Firebase Authentication's 76/100 on VendorVS. However, the best choice depends on your needs — Firebase Authentication excels at ease of use (8/10) while Inngest scores 9/10.

How much does Firebase Authentication cost compared to Inngest?

Firebase Authentication starts at free (free tier available). Inngest starts at free (free tier available). Firebase Authentication is the more affordable option.

Does Firebase Authentication or Inngest have a free plan?

Yes, both Firebase Authentication and Inngest offer free tiers, so you can try each before committing to a paid plan.

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