Convex vs SlateDB: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
Convex
Convex is an open-source backend platform that helps developers build full-stack apps with real-time data sync and TypeScript support.
SlateDB
SlateDB is a free, open-source embedded database built on cloud object storage, offering unlimited capacity and high reliability for modern applications.
Convex
Convex is an open-source backend platform that helps developers build full-stack apps with real-time data sync and TypeScript support.
SlateDB
SlateDB is a free, open-source embedded database built on cloud object storage, offering unlimited capacity and high reliability for modern applications.
Convex
Real-time data synchronization across all clients
TypeScript-first backend with full type safety
Serverless cloud functions and database
Built-in file storage and management
Vector search for AI applications
Scheduled jobs and background tasks
Authentication integration support
Open-source and self-hostable
Automatic caching and optimization
Developer dashboard and monitoring tools
SlateDB
Cloud-native embedded database for Rust applications
Unlimited storage through S3, GCS, Azure Blob
Single writer with multiple concurrent readers
Batched writes reduce API costs
Configurable durability and latency trade-offs
Built-in compression and caching
Transaction support with snapshots
Garbage collection and compaction
Open source Apache 2.0 license
Active community and regular updates
Convex
Convex offers flexible pricing plans designed for different project sizes and team needs. The platform includes both free and paid options with generous resource limits.
The Free Plan supports up to 6 developers working on 20 projects. It includes 85,000 Chef AI tokens monthly, 1 million function calls, 20 GB-hours of compute, and basic database and file storage. This plan is perfect for personal projects and prototypes.
The Professional Plan costs $25 per developer per month and supports teams with over 100 projects. It provides 500,000 Chef AI tokens monthly, 25 million function calls, 250 GB-hours of compute, and significantly larger storage limits. Professional users get priority support and can scale resources with pay-as-you-go pricing when they exceed included limits.
For startups, Convex offers a special program with up to one year of free Professional access for early-stage companies.
SlateDB
SlateDB is completely free and open source under the Apache 2.0 license. There are no licensing costs, subscription fees, or usage charges for the database software itself.
However, you will pay for the cloud storage you use. Costs depend on your chosen provider and usage patterns. For example, Amazon S3 typically charges around $0.023 per gigabyte per month for standard storage, plus small fees for data transfers and API requests.
SlateDB helps reduce these costs through smart batching of write operations. Instead of making an API call for every single write, it groups them together, significantly lowering expenses compared to writing directly to object storage.
The software is maintained by an active open-source community with regular updates and improvements. Being part of the Commonhaus Foundation ensures long-term project sustainability and governance.