Appsmith

Open-source internal tool builder with free self-hosting

Firebase Authentication

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

Appsmith vs Firebase Authentication: Full Comparison (2026)

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

The bottom line

Appsmith positions itself as "open-source internal tool builder with free self-hosting" while Firebase Authentication goes after "google-backed auth with generous free tier for mobile and web" — so the right pick depends on which problem you're actually solving. Both use freemium pricing, but Appsmith charges per seat while Firebase Authentication charges per mau — a meaningful difference for larger teams. Firebase Authentication (founded 2011) has had more time to build out its ecosystem and integrations, while Appsmith (2019) tends to move faster on modern UX and newer workflows.

At a glance

	Appsmith	Firebase Authentication
Our score	76/100	76/100
Starting price	Free	Free
Free tier	Yes	Yes
Best for	Open-source internal tool builder with free self-hosting	Google-backed auth with generous free tier for mobile and web

Pricing comparison

Appsmith

Free tier available

Community (self-hosted)Free

Business (cloud)$15/mo

Enterprise$null/mo

Pricing verified 2026-04-16

Firebase Authentication

Free tier available

Spark (Free)Free

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

Pricing verified 2026-04-16

Calculate your cost

How many developers?10

1500

AppsmithBusiness (cloud)

$150/mo

$1,800/yr

Firebase AuthenticationUnknown

Contact sales

Try Appsmith free →Try Firebase Authentication free →

Feature comparison

core

Feature	Appsmith	Firebase Authentication
Drag-and-drop builder	Yes	No
Database connections	Yes	No
API integrations	Yes	No
JavaScript logic	Yes	No
Pre-built widgets	Yes	No
Email/password	No	Yes
Google OAuth	No	Yes
Apple OAuth	No	Yes
Phone SMS	No	Yes
Anonymous auth	No	Yes

advanced

Feature	Appsmith	Firebase Authentication
Git sync	Yes	No
Custom widgets	Yes	No
AI integrations	Yes	No
Audit logs	Business+	No
Self-hosted	Yes	No
Multi-tenancy	No	Blaze
SAML SSO	No	Blaze ($0.015/MAU)
Custom claims	No	Yes
App Check	No	Yes
Blocking functions	No	Yes

integrations

Feature	Appsmith	Firebase Authentication
PostgreSQL	Yes	No
MySQL	Yes	No
MongoDB	Yes	No
REST APIs	Yes	No
GraphQL	Yes	No
S3	Yes	No
Firebase (all products)	No	Yes
Google Cloud	No	Yes
Flutter	No	Yes
Android/iOS SDKs	No	Yes
Web SDK	No	Yes

Ratings breakdown

Appsmith

Ease of use

7/10

Value for money

9/10

Features

8/10

Support

6/10

Firebase Authentication

Ease of use

8/10

Value for money

9/10

Features

7/10

Support

6/10

What the data tells us

Key capabilities you'd miss

Choosing Appsmith means going without Email/password, Google OAuth, Apple OAuth (which Firebase Authentication offers). Choosing Firebase Authentication means losing Drag-and-drop builder, Database connections, API integrations. 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

Appsmith (51-200 employees) has the engineering bench to ship features across many fronts but may iterate slower on individual requests. Firebase Authentication (100,000+ employees) typically ships faster on its core product but may lag on peripheral features. Consider which matters more for your roadmap.

Choose Appsmith if...

You want a free tier to get started
You value powerful features over simplicity
Getting strong value for money is a priority

Try Appsmith free →

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 →

Frequently asked questions

Is Appsmith or Firebase Authentication better?

Appsmith scores 76/100 compared to Firebase Authentication's 76/100 on VendorVS. However, the best choice depends on your needs — Appsmith excels at ease of use (7/10) while Firebase Authentication scores 8/10.

How much does Appsmith cost compared to Firebase Authentication?

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

Does Appsmith or Firebase Authentication have a free plan?

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

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