AlloyDB for PostgreSQL vs IBM Cloud Databases for PostgreSQL

AlloyDB for PostgreSQL8.9Visit IBM Cloud Databases for PostgreSQL8.7Visit

Higher score AlloyDB for PostgreSQL #6 in PostgreSQL Hosting 8.9/10 From $0.07 · 30-day trial Free trial✓ 2 of 4 features Visit Google Cloud

vs

IBM Cloud Databases for PostgreSQL #8 in PostgreSQL Hosting 8.7/10 Paid ✓ 4 of 4 features Visit IBM Cloud

• AlloyDB for PostgreSQL fits best

  Analytics- and AI-heavy PostgreSQL workloads

• IBM Cloud Databases for PostgreSQL fits best

  IBM Cloud teams needing governed PostgreSQL

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Side by side

Feature	AlloyDB for PostgreSQL 8.9/10 Visit ↗	IBM Cloud Databases for PostgreSQL 8.7/10 Visit ↗
At a glance
Editor score	8.9	8.7
Ranking	#6 in PostgreSQL Hosting	#8 in PostgreSQL Hosting
Best for	Analytics- and AI-heavy PostgreSQL workloads	IBM Cloud teams needing governed PostgreSQL
Pricing model	Paid	Paid
Starting price	From $0.07 · 30-day trial	—
Free plan	—	Not checked yet
Free trial	30 days	—
Deployment	Cloud	Cloud
Platforms	Web	Web
Integrations	5 integrations	6 integrations
Features AlloyDB for PostgreSQL 2/4 · IBM Cloud Databases for PostgreSQL 4/4
High availability	✓	✓
Point-in-time recovery	Not checked yet	✓ (best)
Read replicas	✓	✓
Custom extensions	Not checked yet	✓ (best)
Specs
Maximum storage	Not checked yet	Not checked yet
Backup retention	14 days	30 days (best)
Our review
Pros	High availability, automatic failover, backups, and read replicas Columnar engine, index advisor, and adaptive query optimization Vector search and AI integration with Google Cloud services	Automatic cross-zone failover with highly available clusters Seven-day point-in-time recovery and 30-day backup retention BYOK encryption plus API, CLI, Terraform, and extension support
Cons	No free plan; pricing is usage-based rather than fixed Costs also include memory, storage, backups, and networking Designed for Google Cloud rather than self-managed deployments	Consumption-based billing can make monthly spend variable Standard starts with two data members by default Its strongest ecosystem fit is centered on IBM Cloud tooling
Our verdict	AlloyDB for PostgreSQL is a fully managed relational database service for organizations running demanding transactional, analytical, and AI-enabled applications on Google Cloud. It maintains PostgreSQL compatibility while separating… Read the review →	IBM Cloud Databases for PostgreSQL is a fully managed PostgreSQL service for teams running web, mobile, analytics, and enterprise applications on IBM Cloud. IBM handles infrastructure, patching, scaling, monitoring, logging, backups, and… Read the review →

Strengths and trade-offs

• AlloyDB for PostgreSQL — where it wins

  • High availability, automatic failover, backups, and read replicas
  • Columnar engine, index advisor, and adaptive query optimization
  • Vector search and AI integration with Google Cloud services

  Where it doesn't

  • No free plan; pricing is usage-based rather than fixed
  • Costs also include memory, storage, backups, and networking
  • Designed for Google Cloud rather than self-managed deployments

• IBM Cloud Databases for PostgreSQL — where it wins

  • Automatic cross-zone failover with highly available clusters
  • Seven-day point-in-time recovery and 30-day backup retention
  • BYOK encryption plus API, CLI, Terraform, and extension support

  Where it doesn't

  • Consumption-based billing can make monthly spend variable
  • Standard starts with two data members by default
  • Its strongest ecosystem fit is centered on IBM Cloud tooling

• AlloyDB for PostgreSQL8.9/10 · From $0.07 · 30-day trial

  A managed PostgreSQL service for demanding transactional, analytical, and AI workloads.

  Visit Google CloudFull verdict →
• IBM Cloud Databases for PostgreSQL8.7/10 · Paid

  A governed, highly available PostgreSQL service for teams already building on IBM Cloud.

  Visit IBM CloudFull verdict →