Pivotal GemFire uses the Apache Geode open-source project to power an in-memory data grid (IMDG). It's used by companies to scale data services to support real-time, high-performance applications. GridGain is an in-memory computing platform built on Apache Ignite. It includes a distributed, in-memory data grid (IMDG), a key-value and hybrid SQL in-memory databases (IMDB), stream processing and analytics engines, and a continuous learning framework that supports machine and deep learning. It can be used with any RDBMS or NoSQL Hadoop database.