AWS · Database

Amazon Quantum Ledger Database (QLDB)

Amazon QLDB is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log. It handles the core work of maintaining a central, authoritative source of truth for application data, ensuring every change is tracked with a complete history. This makes it ideal for scenarios requiring strict audit trails, such as financial transactions or supply chain records, where data integrity and tamper-proof history are non-negotiable requirements for compliance and verification.

Teams needing a serverless, immutable ledger without managing infrastructure will find QLDB fits well, but the lack of a free tier is a significant hurdle for prototyping or small-scale testing. You pay strictly on a pay-as-you-go basis from the first request, meaning there is no zero-cost entry point to experiment with the service. This pricing model demands careful budgeting for development environments, as even minimal usage incurs immediate costs, unlike many other AWS services that offer limited free allowances.

• Free tier No
• Pricing Pay as you go
• Regions 15 · 6 continents
• SLA uptime 99.99%
• Compliance 13 certifications
• Provider health A