Supabase Realtime vs PowerSync: Which is Better in 2026?
Choosing between Supabase Realtime and PowerSync comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Supabase Realtime is our overall pick for developer tools workflows. Pick PowerSync if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Supabase Realtime
Sync client state globally over WebSockets to build modern real-time web and mobile applications.
Best for you if:
- • Synchronize client state globally using WebSockets for real-time applications.
- • Listen to database changes (inserts, updates, deletes) in real-time.
PowerSync
Automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps.
Best for you if:
- • Automatically syncs backend databases (Postgres, MongoDB, MySQL, SQL Server) with in-app SQLite.
- • Enables building fast, reactive, and offline-first applications with real-time data updates.
| At a Glance |  Supabase Realtime |  PowerSync |
|---|---|---|
Starts at | $10/month/moBasic | From $49/month/moPro |
Best For | Developer Tools | Developer Tools |
Rating | - | - |
Choose Supabase Realtime or PowerSync?
Choose Supabase Realtime if
Sync client state globally over WebSockets to build modern real-time web and mobile applications.
- Simplifies real-time application development by abstracting backend complexity.
- Leverages existing Postgres knowledge and skills.
- Offers a fully integrated suite of tools within the Supabase ecosystem.
Choose PowerSync if
Automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps.
- Eliminates complex API-based state management
- Enables building highly responsive and offline-first applications
- Leverages powerful and open technologies like SQLite
| Feature | Supabase Realtime | PowerSync |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.7/5 33 reviews | No ratings yet |
| Categories | Developer ToolsData & Databases | Developer ToolsData & Databases |
In-Depth Analysis
Supabase Realtime
Sync client state globally over WebSockets to build modern real-time web and mobile applications.
Strengths
- +Simplifies real-time application development by abstracting backend complexity.
- +Leverages existing Postgres knowledge and skills.
- +Offers a fully integrated suite of tools within the Supabase ecosystem.
- +Scalable and dependable for growing applications.
- +Easy to set up and use with convenient APIs.
Weaknesses
- -Specific limitations on the number of concurrent connections or messages per second are not detailed, making it difficult to assess scalability for very high-traffic applications without further investigation.
- -The documentation does not explicitly mention advanced features like message queuing, message persistence beyond active subscriptions, or guaranteed message delivery, which might be crucial for certain enterprise-grade real-time applications.
- -Details on security features beyond basic access control (e.g., end-to-end encryption for broadcast messages, advanced authentication mechanisms for channels) are not highlighted, which could be a concern for highly sensitive data.
Key features
PowerSync
Automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps.
Strengths
- +Eliminates complex API-based state management
- +Enables building highly responsive and offline-first applications
- +Leverages powerful and open technologies like SQLite
- +Open-source and source-available components
- +Scales horizontally to support many concurrent clients
Weaknesses
- -MySQL and SQL Server support are currently in beta/alpha stages
- -Free plan projects are deactivated after 1 week of inactivity
Key features
Pricing: Supabase Realtime vs PowerSync
| Plan | Supabase Realtime | PowerSync |
|---|---|---|
| Tier 1 | Free Free | $0/month Free |
| Tier 2 | $10/month Basic | From $49/month Pro |
| Tier 3 | $25/month Pro | From $599/month Team |
| Tier 4 | N/A | Custom Enterprise |
| Tier 5 | N/A | Free Open Edition |
| Tier 6 | N/A | Contact us Enterprise Self-Hosted |
Pricing verified from each vendor's public pricing page. Compare in detail on Supabase Realtime pricing and PowerSync pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Supabase Realtime
Want the highest-rated option?
Neither has user reviews yet.
Go with: Supabase Realtime
Value user reviews?
Neither has user reviews yet.
Go with: Supabase Realtime
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are developer tools tools. Compare their specific features to decide.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Supabase Realtime
- Free tier available
- Our pick for this comparison
PowerSync
- Choose if you want automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps
The Bottom Line
Supabase Realtime is our pick.
Frequently Asked Questions
Is Supabase Realtime or PowerSync better?
Supabase Realtime is rated in our evaluation. Both are freemium.
What are Supabase Realtime and PowerSync used for?
Supabase Realtime: Sync client state globally over WebSockets to build modern real-time web and mobile applications.. PowerSync: Automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps..
What does Supabase Realtime cost vs PowerSync?
Supabase Realtime is freemium (free tier + paid plans). PowerSync is freemium (free tier + paid plans). Visit their websites for detailed pricing.