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Amazon QLDB vs Amazon SimpleDB comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Amazon QLDB
Ranking in NoSQL Databases
20th
Average Rating
8.0
Reviews Sentiment
6.6
Number of Reviews
1
Ranking in other categories
No ranking in other categories
Amazon SimpleDB
Ranking in NoSQL Databases
18th
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
1
Ranking in other categories
Non-Relational Databases (8th)
 

Mindshare comparison

As of April 2026, in the NoSQL Databases category, the mindshare of Amazon QLDB is 1.4%, up from 0.5% compared to the previous year. The mindshare of Amazon SimpleDB is 0.6%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
NoSQL Databases Mindshare Distribution
ProductMindshare (%)
Amazon SimpleDB0.6%
Amazon QLDB1.4%
Other98.0%
NoSQL Databases
 

Featured Reviews

BK
Technical Architect at a tech services company with 11-50 employees
A fast and affordable solution that is scalable and has a nice dashboard
The product enables the users to query results faster. It maintains all the versions of the changes done on a specific node. A traditional blockchain would take time, but Amazon QLDB is a bit faster. We have to do many operations in blockchain to read data, but QLDB comes with an easy syntax. The product provides a nice dashboard to view all the information.
BV
SAP Senior Architect at Cognizant
Adapting to changing data needs with reduced development time and schema flexibility
Amazon SimpleDB is beneficial to me due to its reduced development time, adaptability, improved agility, and its ability to handle unstructured data. It also offers schema flexibility, which aids me in documentation, version control, modular design, data normalization, and denormalization. With this, I have a clear understanding of the data, considering future challenges, and designing for expansion.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The product enables the users to query results faster."
"Amazon SimpleDB is beneficial to me due to its reduced development time, adaptability, improved agility, and its ability to handle unstructured data."
 

Cons

"The product should enable users to import data from various databases."
"The ability to adapt database structures like tables and data types to changing data requirements without causing major disruptions or extensive code changes is an area where I feel improvement is needed."
 

Pricing and Cost Advice

"The product is not expensive."
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Questions from the Community

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What is your experience regarding pricing and costs for Amazon SimpleDB?
I find the price of Amazon SimpleDB to be relatively high compared to other solutions available in the market like Microsoft and other cloud services.
What needs improvement with Amazon SimpleDB?
The ability to adapt database structures like tables and data types to changing data requirements without causing major disruptions or extensive code changes is an area where I feel improvement is ...
What is your primary use case for Amazon SimpleDB?
I use Amazon SimpleDB for managing my SAP database.
 

Also Known As

Amazon Quantum Ledger Database
SimpleDB
 

Overview

 

Sample Customers

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