Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · In-Memory Databases

Couchbase Server vs Aerospike Database

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score Couchbase Server #1 in In-Memory Databases 9.4/10 Free plan Free plan✓ 1 of 4 features Visit Couchbase
Aerospike Database #4 in In-Memory Databases 8.8/10 Free plan Free plan✓ 0 of 4 features Visit Aerospike

Couchbase Server leads on 0 checks, Aerospike Database on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCouchbase Server · 9.4/10
  • Free planboth
  • Most featuresCouchbase Server · 1 of 4

Couchbase Server scores higher on our rubric for in-memory databases: 9.4 against 8.8 out of 10; our editors rank them #1 and #4.

Couchbase Server is the better fit for teams wanting a broad, flexible in-memory platform. Aerospike Database is the better fit for high-scale distributed key-value workloads.

  • Couchbase Server fits best

    Teams wanting a broad, flexible in-memory platform

  • Aerospike Database fits best

    High-scale distributed key-value workloads

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Couchbase Server 9.4/10 Visit ↗ Aerospike Database 8.8/10 Visit ↗
At a glance
Editor score 9.4 8.8
Ranking #1 in In-Memory Databases #4 in In-Memory Databases
Best for Teams wanting a broad, flexible in-memory platform High-scale distributed key-value workloads
Pricing model Free plan + paid Free plan + paid
Starting price — —
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Support Community, Docs Tickets, Community, Docs · 24/7
Compliance SOC 2, HIPAA, PCI DSS SOC 2, ISO 27001, GDPR, 2FA
Built for Mid-market, Enterprise Mid-market, Enterprise
Features Couchbase Server 1/4 · Aerospike Database 0/4
Data persistence Not checked yet Not checked yet
High availability Not checked yet Not checked yet
SQL support Not checked yet Not checked yet
Vector search ✓ (best) Not checked yet
Specs
Deployment Not checked yet Not checked yet
Included memory Not checked yet Not checked yet
Supported data models Not checked yet Not checked yet
Our review
Pros
  • Free Community Edition for development and production use
  • Combines key-value, JSON, SQL++, transactions, search, and vector indexing
  • Supports containers, Kubernetes, cloud infrastructure, and on-premises deployments
  • Strong consistency, distributed transactions, and automatic failover
  • Supports in-memory, hybrid memory/flash, all-flash, and block storage
  • Cross-datacenter replication through XDR and synchronous cluster replication
Cons
  • Community Edition clusters are limited to five nodes for Server 7.0 and later
  • Community Edition includes community-supported distribution
  • Enterprise pricing is based on production node count
  • Community Edition is limited to 8-node clusters
  • Community Edition supports up to 2.5 TB of data
  • Enterprise Edition pricing requires contacting Aerospike
Our verdict

Couchbase Server is a distributed, open-source document database for enterprise applications that need more than basic key-value access. It stores JSON and binary documents, supports SQL++ querying and ACID transactions, and includes…

Read the review →

Aerospike Database is a distributed NoSQL database for enterprises building real-time applications with demanding latency, throughput, and scale requirements. It supports key-value, document, and graph data models through a common database…

Read the review →
  1. Couchbase ServerIn-Memory Databases 9.4Free plan
  2. Aerospike DatabaseIn-Memory Databases 8.8Free plan

Strengths and trade-offs

  • Couchbase Server — where it wins

    • Free Community Edition for development and production use
    • Combines key-value, JSON, SQL++, transactions, search, and vector indexing
    • Supports containers, Kubernetes, cloud infrastructure, and on-premises deployments

    Where it doesn't

    • Community Edition clusters are limited to five nodes for Server 7.0 and later
    • Community Edition includes community-supported distribution
    • Enterprise pricing is based on production node count

  • Aerospike Database — where it wins

    • Strong consistency, distributed transactions, and automatic failover
    • Supports in-memory, hybrid memory/flash, all-flash, and block storage
    • Cross-datacenter replication through XDR and synchronous cluster replication

    Where it doesn't

    • Community Edition is limited to 8-node clusters
    • Community Edition supports up to 2.5 TB of data
    • Enterprise Edition pricing requires contacting Aerospike
  • Couchbase Server9.4/10 · Free plan

    A broad in-memory platform with free production use and extensive database capabilities.

    Visit CouchbaseFull verdict →
  • Aerospike Database8.8/10 · Free plan

    A distributed database for demanding real-time workloads, with broad storage and replication options.

    Visit AerospikeFull verdict →

More comparisons

All In-Memory databases comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update