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PowerSync

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Automatically sync your backend database with in-app SQLite for fast, reactive, local-first apps.

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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

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

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
  • Projects deactivated after 1 week of inactivity

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
  • VPC peering available on AWS
  • SOC 2 report & HIPAA compliance available
  • Organization-based billing with live usage monitoring

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
  • Multiple database connections (planned)
  • Customizable alerting (planned)
  • Email support
  • Email support with SLA

What is PowerSync?

Editorial review
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.

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PowerSync FAQ

What is PowerSync?

PowerSync is a sync engine that automatically synchronizes data between your backend database (PostgreSQL, MongoDB, MySQL, SQL Server) and in-app SQLite on client devices. It provides a service for scalable data syncing and client SDKs to manage local data, ensuring real-time reactivity and offline capabilities for applications.

How much does PowerSync cost?

PowerSync offers a freemium pricing model. There is a Free plan with soft limits, a Pro plan starting from $49/month, a Team plan starting from $599/month, and a custom Enterprise plan. Self-hosting options are also available.

Is PowerSync free?

Yes, PowerSync offers a Free plan which includes a PowerSync Service, up to 2 GB data synced/month, 500 MB of data hosted, 50 peak concurrent connections, and community support. However, free projects are deactivated after 1 week of inactivity.

Who is PowerSync for?

PowerSync is for developers and teams looking to build fast, reactive, and offline-first applications. It's particularly beneficial for those who want to simplify data synchronization, avoid the complexities of network state management, and leverage the power of SQLite for client-side data persistence.