PowerSync
Claim this toolAutomatically sync your backend database with in-app SQLite for fast, reactive, local-first apps.
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Reviews onG2
1 review trackedThe Bottom Line
Entry price
Free plan available, paid tiers above
Biggest pro
Eliminates complex API-based state management
Biggest con
MySQL and SQL Server support are currently in beta/alpha stages
TL;DR - PowerSync
- 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.
- Simplifies state management and network complexities, allowing developers to focus on features.
Pricing: Free plan available
Best for: Growing teams
What is PowerSync?
PowerSync is a sync engine designed to simplify data synchronization between backend databases and client-side SQLite. It consists of a cloud service for scalable partial data syncing and client SDKs that manage local persistence, consistency, reactivity, and write operations. This allows developers to build instantly responsive, offline-first applications by eliminating the complexities of API-based state management over networks.
The product connects to popular backend databases like PostgreSQL, MongoDB, MySQL, and SQL Server, and leverages the power of SQLite on the client-side for transparent, extensible, and versatile local data handling. PowerSync aims to free developers from micromanaging data and network calls, enabling them to focus on building features rather than wrestling with complex sync logic, ultimately leading to a more enjoyable app development experience and superior user experience with real-time data updates and offline availability.
Available on: Web
Pros & Cons
Pros
- 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
Cons
- MySQL and SQL Server support are currently in beta/alpha stages
- Free plan projects are deactivated after 1 week of inactivity
Ratings Across the Web
5(1 reviews)
Ratings aggregated from independent review platforms. Learn more
Preview
Key Features
High-scalability partial data syncing serviceClient SDKs for managing client-side persistence, consistency, and reactivityBi-directional automatic partial syncingReal-time reactivity with live queriesPainless schema evolutionSupport for PostgreSQL, MongoDB, MySQL, and SQL Server backend databasesDynamic data partitioning based on user-defined rulesReal-time streaming of updates to clients
Pricing Plans
Pricing checked Jul 5, 2026
Free
$0 / month
- PowerSync Service (isolated cloud service)
- Up to 2 GB data synced / month
- Up to 500 MB of data hosted on PowerSync Service
- Up to 50 peak concurrent connections
- Up to 2 PowerSync Service instances
- 1 source database connection per instance
- Community support
- Basic alerting
Pro
From $49/month
- Everything in the Free plan, plus:
- No project deactivation
- 30 GB data synced / month included
- 10 GB of data hosted on PowerSync Service included
- 1,000 peak concurrent connections included
- Email support
- Webhook alerts
- Organization-based billing with live usage monitoring
Team
From $599/month
- Everything in the Pro plan, plus:
- PowerSync Service version locking
- Priority email support & SLA
- Uptime guarantee
- Customizable roles & permissions
- Customizable usage alerting
- Custom write checkpoints
- Customer-provided bucket storage database
Enterprise
Custom
- Everything in the Team plan, plus:
- Custom pricing
- Scaling support & advisory
- 24×7×365 premium enterprise support
- Assigned customer success engineer
- Security questionnaire help
- Best for large-scale implementations
Open Edition
Free
- Self-hosting of free source-available edition
- Support for Postgres, MongoDB, MySQL (beta), and SQL Server (alpha) backend databases
- Access to all available client SDKs
- Dynamic partial replication with Sync Rules
- Configuration using a config file
- Usage metrics monitoring with log files and status APIs
- Debugging tool available to test and inspect syncing
- Community support
Enterprise Self-Hosted
Contact us
- Self-hosting on Enterprise plan
- Everything in the Open Edition, plus:
- Custom pricing
- Custom write checkpoints
- 24x7x365 premium enterprise support
- Assigned customer success engineer
- SOC 2 report
- Security questionnaire help
Reviews
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PowerSync FAQ
How does PowerSync facilitate offline-first application development?
PowerSync enables offline-first applications by synchronizing backend data with client-side SQLite, allowing apps to function without a constant network connection. It manages local persistence and consistency, ensuring data is available and up-to-date even when offline. This approach eliminates the need for complex API-based state management over networks.
Which teams benefit most from using PowerSync?
Teams focused on building highly responsive, local-first applications with real-time data updates and offline capabilities will find PowerSync most beneficial. It is particularly useful for developers who want to reduce the complexity of data synchronization and network call management, allowing them to concentrate on feature development.
How is PowerSync priced?
PowerSync is available on a free tier, which allows users to get started without initial cost. For more extensive usage and additional features, paid plans are offered to accommodate growing needs.
Can PowerSync connect to various backend databases?
Yes, PowerSync connects to popular backend databases such as PostgreSQL, MongoDB, MySQL, and SQL Server. It leverages SQLite on the client-side for versatile local data handling, simplifying data synchronization across different systems.
What kind of trade-offs should users be aware of with PowerSync?
Users should be aware that support for MySQL and SQL Server is currently in beta or alpha stages, meaning these integrations might not be as mature as others. Additionally, projects on the free plan are deactivated if they remain inactive for one week.
How does PowerSync compare to Whalesync?
PowerSync focuses on automatically syncing backend databases with in-app SQLite for fast, reactive, local-first applications, simplifying client-side data management. Unlike Whalesync, PowerSync emphasizes eliminating complex API-based state management and providing offline availability through its sync engine and client SDKs.
Does PowerSync support open-source components?
Yes, PowerSync includes open-source and source-available components. This allows for transparency and extensibility in how local data is handled and managed within applications.
Source: powersync.com