Supabase vs Firebase comparison - Practice Questions

Challenge - 5 Problems

🧠 Conceptual

intermediate

Primary Database Technology Used

Which database technology does Supabase primarily use compared to Firebase?

A Both Supabase and Firebase use the same NoSQL database.

B Supabase uses MySQL, while Firebase uses PostgreSQL.

C Supabase uses PostgreSQL, while Firebase uses a NoSQL database.

D Supabase uses Firebase's Realtime Database under the hood.

💡 Hint

Think about the type of database each platform is built on.

Supabase is built on PostgreSQL, a relational database, while Firebase uses NoSQL databases like Firestore and Realtime Database.

❓ Architecture

intermediate

Real-time Data Synchronization

Which platform provides built-in real-time data synchronization capabilities without additional setup?

A Firebase provides built-in real-time synchronization; Supabase requires additional configuration.

B Supabase provides built-in real-time synchronization; Firebase requires additional setup.

C Neither platform supports real-time synchronization.

D Both platforms require third-party tools for real-time synchronization.

💡 Hint

Consider which platform is known for easy real-time updates out of the box.

Firebase's Realtime Database and Firestore offer real-time data sync by default. Supabase supports real-time but needs configuration.

❓ security

advanced

Authentication and Authorization Features

Which statement correctly describes the authentication and authorization features of Supabase compared to Firebase?

A Both platforms rely solely on third-party authentication providers without native support.

B Supabase uses JWT tokens and Row Level Security policies; Firebase uses proprietary token-based auth with rules.

C Supabase does not support user authentication; Firebase does.

D Firebase uses SQL-based access control; Supabase uses OAuth only.

💡 Hint

Think about how each platform manages database access and user identity.

Supabase uses JWT tokens and PostgreSQL Row Level Security for fine-grained access. Firebase uses its own token system and security rules.

✅ Best Practice

advanced

Choosing Between Supabase and Firebase for a New Project

For a project requiring complex relational queries and SQL support, which platform is better suited?

A Supabase, because it supports SQL and relational data natively.

B Firebase, because it has built-in SQL query support.

C Neither, both platforms only support NoSQL queries.

D Firebase, because it automatically converts NoSQL to SQL.

💡 Hint

Consider which platform uses a relational database.

Supabase uses PostgreSQL, which supports complex SQL queries and relational data. Firebase uses NoSQL databases without native SQL support.

❓ service_behavior

expert

Handling Offline Data Synchronization

Which platform offers built-in offline data synchronization for mobile apps, and how does it behave when the device reconnects?

A Supabase queues offline changes but requires manual sync triggers.

B Supabase offers built-in offline sync with automatic conflict resolution.

C Neither platform supports offline sync; developers must implement it manually.

D Firebase offers built-in offline sync; it queues changes locally and syncs automatically when online.

💡 Hint

Think about mobile app support and offline capabilities.

Firebase SDKs support offline data persistence and automatic synchronization when connectivity returns. Supabase currently lacks built-in offline sync.