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Backend + mobile integration

Firebase+Flutter

Add real-time database + user auth + push notifications + file storage to your Flutter app with Firebase.

Quick answer

Firebase + Flutter integration connects Google's BaaS (Backend-as-a-Service) platform to a Flutter mobile app. Firebase Auth (email/Google/Apple login), Firestore (real-time NoSQL), Cloud Messaging (push), and Storage (files) are the most-used modules. Ideal for launching an MVP in 2-4 weeks without writing a backend.

Setup cost

$1-3.5K

Monthly

Firebase Spark (free) → Blaze (usage-based, $0-200/month for MVP)

Duration

2-5 weeks

Who is this for

→Flutter mobile app MVP

→Real-time chat application

→Social platform + user profiles

→Instant notifications (promotions, transactions)

→File upload + gallery app

Data flow

Flutter App → Firebase SDK → Firebase services (Auth, Firestore, FCM, Storage). Real-time: Firestore snapshot listener → Flutter UI updates instantly.

Setup steps

  1. 01

    Create Firebase project

    console.firebase.google.com → New project → Add Android + iOS app → google-services.json / GoogleService-Info.plist.

  2. 02

    Flutter packages

    firebase_core, firebase_auth, cloud_firestore, firebase_messaging, firebase_storage — pubspec.yaml.

  3. 03

    Firebase Auth integration

    Email/password, Google Sign-In, Apple Sign-In. User state via authStateChanges() stream.

  4. 04

    Firestore data model

    Plan Collection + Document structure. Security rules are critical — don't leave in test mode.

  5. 05

    FCM push notifications

    Obtain Firebase Cloud Messaging token → send notifications from server. Handle background + foreground.

  6. 06

    Test + deploy

    Local testing with Firebase Emulator Suite → production.

Common pitfalls

  • Open Firestore security rules = data leak
  • Firestore read costs (no pagination = $$ explosion)
  • FCM on iOS requires APNs certificate
  • Offline support: Firestore persistence must be enabled
  • Firebase KVKK: data may be outside EU; update privacy policy

Frequently asked questions

Firebase or Supabase?

Firebase: NoSQL + Google ecosystem; Supabase: PostgreSQL + open-source. Firebase is faster for prototyping; Supabase for relational data + self-hosting. Both integrate well with Flutter.

How much does Firebase give for free?

Spark plan: 1GB Firestore, 10GB Storage, 50K FCM/day free. Usually enough for an MVP. Switch to Blaze (usage-based) as you scale.

Is Firebase KVKK-safe?

Firebase EU region can be selected (europe-west). GDPR-compliant; but Privacy Policy + KVKK disclosure must be updated. For sensitive health/legal data, prefer a local server.

Get a quote for Firebase + Flutter integration

Fixed-scope written proposal after a 30-minute discovery call.

Start a discovery call