Apache Ignite vs eXtremeDB

Apache Ignite9.2Visit eXtremeDB8.5Visit

Higher score Apache Ignite #2 in In-Memory Databases 9.2/10 Open source ✓ 0 of 4 features Visit Apache Ignite

vs

eXtremeDB #7 in In-Memory Databases 8.5/10 Pricing on request · 60-day trial Free trial✓ 4 of 4 features Visit McObject

• Apache Ignite fits best

  Open-source distributed SQL and in-memory systems

• eXtremeDB fits best

  Embedded and edge applications needing durability

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Side by side

Feature	Apache Ignite 9.2/10 Visit ↗	eXtremeDB 8.5/10 Visit ↗
At a glance
Editor score	9.2	8.5
Ranking	#2 in In-Memory Databases	#7 in In-Memory Databases
Best for	Open-source distributed SQL and in-memory systems	Embedded and edge applications needing durability
Pricing model	Free	Paid
Starting price	Open source	Pricing on request · 60-day trial
Free plan	Not checked yet	Not checked yet
Free trial	—	60 days
Deployment	Self-hosted	Cloud, Self-hosted
Support	Community, Docs, Email	Email, Phone, Docs
Integrations	4 integrations	8 integrations
Built for	Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Apache Ignite 0/4 · eXtremeDB 4/4
Data persistence	Not checked yet	✓ (best)
High availability	Not checked yet	✓ (best)
SQL support	Not checked yet	✓ (best)
Vector search	Not checked yet	✓ (best)
Specs
Deployment	Not checked yet	Both
Included memory	Not checked yet	Not checked yet
Supported data models	Not checked yet	relational SQL, object-based/native, row-oriented, columnar time-series, in-memory, persistent, hybrid
Our review
Pros	Memory-first SQL with optional in-memory and persistent storage ACID transactions, replication, clustering, and distributed compute JDBC, ODBC, REST, Spring Data, and native client connectivity	Supports in-memory, persistent, and hybrid storage modes Combines replication, failover, clustering, and distributed queries Offers SQL, native APIs, vector indexes, and time-series layouts
Cons	Ignite 2 and Ignite 3 require a generation choice TTL support differs between Ignite 2 and Ignite 3 Distributed deployment requires architecture and operational planning	Pricing requires contacting McObject's sales team The 60-day offer is an evaluation trial, not a perpetual free plan Its broad feature set may exceed the needs of simple embedded applications
Our verdict	Apache Ignite is an open-source, memory-first distributed SQL database for mission-critical, high-velocity applications. It suits teams building distributed services that need SQL and key-value access, ACID transactions, persistent or… Read the review →	eXtremeDB is an embedded database management system for professional developers building resource-constrained, real-time, IoT, networking, financial, and high-performance computing applications. It supports embedded and client/server… Read the review →

Strengths and trade-offs

• Apache Ignite — where it wins

  • Memory-first SQL with optional in-memory and persistent storage
  • ACID transactions, replication, clustering, and distributed compute
  • JDBC, ODBC, REST, Spring Data, and native client connectivity

  Where it doesn't

  • Ignite 2 and Ignite 3 require a generation choice
  • TTL support differs between Ignite 2 and Ignite 3
  • Distributed deployment requires architecture and operational planning

• eXtremeDB — where it wins

  • Supports in-memory, persistent, and hybrid storage modes
  • Combines replication, failover, clustering, and distributed queries
  • Offers SQL, native APIs, vector indexes, and time-series layouts

  Where it doesn't

  • Pricing requires contacting McObject's sales team
  • The 60-day offer is an evaluation trial, not a perpetual free plan
  • Its broad feature set may exceed the needs of simple embedded applications

• Apache Ignite9.2/10 · Open source

  Open-source distributed SQL with in-memory speed, persistence, transactions, and compute.

  Visit Apache IgniteFull verdict →
• eXtremeDB8.5/10 · Pricing on request · 60-day trial

  A broad embedded database for durable, real-time, and distributed workloads.

  Visit McObjectFull verdict →