---
title: "Integrate complete Firebase authentication and login systems in Unity"
url: https://zinnhub.com/zinns/integrate-complete-firebase-authentication-and-login-systems-in-unity/
description: "I will integrate Google Login authentication using firebase in unity | Expert 3D Game Developer"
published: 2025-11-13T03:27:42+00:00
modified: 2026-01-19T11:09:35+00:00
language: en-GB
---

# Integrate complete Firebase authentication and login systems in Unity

Google & Apple Login Authentication with Firebase in Unity

Are you building a Unity game or app and need **secure, reliable authentication**?

Zinn Digital® will **integrate Google Login and Apple Sign-In using Firebase Authentication**, with full **Firestore support**, optimised for **Android, iOS, and cross-platform Unity projects**.

What We Will Do:

Integrate **Google Sign-In with Firebase Authentication** in Unity

Integrate **Apple Sign-In with Firebase Authentication** in Unity

Configure **Firebase Authentication & Firestore** properly

Store and manage user data in **Firebase Firestore**

Handle **new users & returning users**

Fix common Firebase / Unity authentication issues

Ensure **Apple App Store compliance** (Apple Sign-In required rules)

Clean, optimised, and well-structured Unity C# code

**Supported Platforms**

Android

iOS

Unity (2D / 3D Games & Apps)

️ Firestore User Data Includes (Customisable)

- User ID (UID)
- Name / Display Name
- Email
- Login Provider (Google / Apple)
- Profile Image (optional)

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### This Zinn Will Include (Google Login)

I will integrate Google Login authentication using firebase in unity

**Delivery:** 2 days

**Revisions:** 1

**Includes:**

• Number of plugins: 1

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### Upgrade Options

Choose an upgrade addon to get more features:

| Feature | Basic | Boost Upgrade | Premium Upgrade |
| --- | --- | --- | --- |
| **Delivery** | 2 days | 4 days | 6 days |
| **Revisions** | 1 | 1 | 1 |
| Number of plugins | 1 | 2 | 3 |
| Upload to app store | ✗ | ✗ | ✗ |
| Additional revision | ✗ | ✗ | ✗ |