
The Live Data Layer for Apps and AI Agents
Materialize is a streaming SQL database for real-time materialized views. It emphasizes correctness over raw speed and does not match QuestDB's specialized order-book arrays or ultra-low latency ingest for market data.
Free
AI-native time-series data historian for industrial operations at 10x performance and 10% cost.

In-process SQL OLAP database that queries files and cloud data directly

Open-source distributed OLAP database for sub-second real-time analytics at petabyte scale