Safest AI App Builder / Backend and Auth

Firebase

Overview

Google's app platform with Firestore, Realtime Database, auth, and hosting. A long-standing target of misconfiguration research: security rules left in test mode expose entire databases, the same failure class Supabase RLS misconfiguration produces in newer stacks.

Best for: Mobile-first and Google-ecosystem apps
Pricing: Generous free tier; pay-as-you-go Blaze plan
Category: Backend and Auth

Security scan data

Not yet scanned. Firebase has not been through our aggregate scan pipeline yet. Grades on this site come from passive, read-only scans of real shipped apps, never from vendor claims, and we do not publish a grade until the sample is large enough to be defensible.

How grades are produced, and what counts as a defensible sample, is documented on the methodology page.