Amazon RDS vs Google Cloud Spanner comparison

Amazon Web Services (AWS) and Google are both solutions in the Database as a Service (DBaaS) category. Amazon Web Services (AWS) is ranked #1 with an average rating of 8.2, while Google is ranked #9 with an average rating of 9.0. Amazon Web Services (AWS) holds a 22.2% mindshare in DS, compared to Google’s 5.1% mindshare. Additionally, 98% of Amazon Web Services (AWS) users are willing to recommend the solution, compared to 100% of Google users who would recommend it.

Amazon RDS

Read 56 Amazon RDS reviews

3,747 Views
3,710 Comparison Views

98% willing to recommend

Google Cloud Spanner

Read 5 Google Cloud Spanner reviews

836 Views
769 Comparison Views

100% willing to recommend

Amazon RDS

Google Cloud Spanner

Comparison Buyer's Guide

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Executive SummaryUpdated on Aug 12, 2024

Amazon RDS and Google Cloud Spanner are two leading database management solutions, each with distinctive strengths. Amazon RDS is noted for its ease of use and automated management, while Google Cloud Spanner offers superior scalability and global distribution.

Features: Amazon RDS is praised for its ease of use, automated backups, and support for multiple database engines. Google Cloud Spanner stands out for its horizontal scalability, global distribution, and strong consistency.

Room for Improvement: Amazon RDS users often request better performance monitoring tools, more transparent pricing, and enhanced tooling features. Google Cloud Spanner users desire improved compatibility with other database systems, enhanced user documentation, and an easier initial setup process.

Ease of Deployment and Customer Service: Amazon RDS users find its deployment process straightforward and quick but some report that customer service response times are lacking. Google Cloud Spanner deployment is noted for its complexity due to sophisticated configurations, yet customer service is often highlighted as responsive and helpful.

Pricing and ROI: Users report that Amazon RDS generally offers lower setup costs and a quick return on investment, while Google Cloud Spanner has higher initial costs but provides significant value for large-scale deployments due to its advanced features.

To learn more, read our detailed Amazon RDS vs. Google Cloud Spanner Report (Updated: July 2025).

Buyer's Guide

Amazon RDS vs. Google Cloud Spanner

July 2025

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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 RDS

Ranking in Database as a Service (DBaaS)

1st

Average Rating

8.4

Reviews Sentiment

7.5

Number of Reviews

Ranking in other categories

No ranking in other categories

Google Cloud Spanner

Ranking in Database as a Service (DBaaS)

9th

Average Rating

9.0

Reviews Sentiment

7.8

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of August 2025, in the Database as a Service (DBaaS) category, the mindshare of Amazon RDS is 22.2%, down from 26.2% compared to the previous year. The mindshare of Google Cloud Spanner is 5.1%, up from 3.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Database as a Service (DBaaS) Market Share Distribution
Product	Market Share (%)
Amazon RDS	22.2%
Google Cloud Spanner	5.1%
Other	72.7%

Database as a Service (DBaaS)

Featured Reviews

Samuel Ebite

AICE Graduate at alx_africa

Ensure high availability with robust encryption and seamless backups

Amazon RDS provides data encryption using services like KMS, crucial for securing high-sensitive data and meeting compliance requirements such as HIPAA or PCI DSS. The best practices we've employed with RDS help design a well-architected framework, encompassing security, encryption, scalability with multi-availability zone deployment, and operational excellence with automated backups. RDS features, such as reserved instances, storage auto-scaling, monitoring with technologies like CloudWatch, and proxies, contribute to cost optimization. The solution enhances security with IAM authentication and offers high availability to end users.

Read full review

Ethan Lo

Infrastructuer Security at Premise Data

A stable and scalable relational database that ensures a return on investment for its users

The most valuable feature of the solution is its scalability. Scalability comes with two options, among which Google Cloud Spanner can scale horizontally, compared to other relational databases that scale vertically. You can change Google Cloud Spanner's resource configuration, which is done through processing units. Suppose you set up Google Cloud Spanner initially with a hundred processing units, and then you run out of resources since your database used too much CPU. In the aforementioned scenario, you can scale up or down and face no downtime in the production phase. The solution's features are important when running a company twenty-four hours, seven days a week.

Read full review

Quotes from Members

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

Pros

"Encryption is the most valuable feature."

"One of the most valuable features is that it is serverless, so we don't have to worry about scaling."

"Amazon RDS fulfills PCI requirements, which is a valuable feature for us."

"It is easy to use, flexible, and powerful."

"The product's initial setup phase is totally easy."

"Stability-wise, I rate the solution a nine out of ten...Scalability-wise, I rate the solution a nine out of ten."

"Amazon RDS makes it easier for me to manage databases compared to traditional databases like MongoDB or local host servers."

"It is stable, scalable, and easy to deploy."

More Amazon RDS pros

"We can scale the solution if we need to."

"Google Cloud Spanner is stable."

"It is a very scalable solution."

"The application deployment in the cloud is the best feature of the infrastructure."

"The most valuable feature of the solution is its scalability. Scalability comes with two options, among which Google Cloud Spanner can scale horizontally, compared to other relational databases that scale vertically."

Cons

"Some of the features will not be there. For example, some on-premises things we want to set up will not be supported there. There are some challenges that they are fixing."

"In the next release, it would be great to see RDS provide connection pooling out of the box."

"If we do not keep track of our costs, we might face some problems."

"Amazon cannot guarantee the stability of some extensions, and there is a need for different extensions to meet PCI requirements."

"Currently, speaking of Microsoft SQL on RDS, you don't have a full option to be able to use it directly on RDS. So, it needs improvement."

"As a customer of Amazon RDS, you don't have super-user privileges, and that is the only drawback where improvements are required."

"For improvements, Amazon RDS could work on more features for multi-availability zone deployment to enhance higher availability, and on simplifying migration for those transitioning from on-premises to cloud environments."

"The Amazon RDS engine could provide features for additional databases, such as Db2. It could also provide support for other databases, such as NoSQL databases, DynamoDB, and Apache Cassandra. They could all stay under one hood."

More Amazon RDS cons

"The tool lacks to offer AI features."

"Google came up with something called Cloud Spanner Emulator, which fails to work like the real product if I want to develop some code and run a database locally on my machine."

"The tool needs to improve horizontal scaling."

"The cost can be a bit high."

"I want to improve the deployment of cameras and surveillance infrastructure."

Pricing and Cost Advice

"Amazon RDS is not a very expensive solution."

"On a scale from one to ten, where ten is the most expensive, and one is the cheapest, I rate the solution's pricing a seven out of ten."

"Amazon RDS could improve by reducing the price."

"The price could be better."

"I would rate the tool's pricing an eight out of ten."

"Amazon RDS is less expensive than other solutions."

"AWS is becoming pretty expensive because cheap or absolutely free services have become paid services. Amazon RDS is not an expensive product, but Amazon's ecosystem is becoming increasingly expensive."

"The price of Amazon RDS is reasonable."

More Amazon RDS pricing and cost advice

"Price-wise, I heard that Google Cloud Spanner is on the higher side."

"Google Cloud Spanner is an expensive solution."

"It is expensive."

"The solution is expensive."

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Financial Services Firm

12%

University

Manufacturing Company

Financial Services Firm

24%

Computer Software Company

13%

Manufacturing Company

Retailer

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	22
Midsize Enterprise	14
Large Enterprise	22

No data available

Questions from the Community

What do you like most about Amazon RDS?

The product's installation phase is easy.

See all answers

What is your experience regarding pricing and costs for Amazon RDS?

The pricing for Amazon RDS is reasonable.

See all answers

What needs improvement with Amazon RDS?

User interface needs improvement for using IPS and cloud watch to scale and utilize read replicas, enabling performance insights to view query formats where the bottlenecks occur, identifying the f...

See all answers

What is your primary use case for Google Cloud Spanner?

Google Cloud Spanner has all the features of a traditional relational database, including schemas, SQL queries, ACID transactions, and provides excellent integration and monitoring tools as well as...

See all answers

What do you like most about Google Cloud Spanner?

Google Cloud Spanner is stable.

See all answers

What is your experience regarding pricing and costs for Google Cloud Spanner?

Price-wise, I heard that Google Cloud Spanner is on the higher side. I am not sure if this is a rumor or if it's fake news, but I believe that having BigQuery and GCP together could be a little cos...

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Comparisons

MongoDB Atlas vs Amazon RDS

Compared 23% of the time

Google Cloud SQL vs Amazon RDS

Compared 18% of the time

Oracle Database as a Service vs Amazon RDS

Compared 16% of the time

Microsoft Azure SQL Database vs Amazon RDS

Compared 14% of the time

Oracle Exadata Cloud at Customer vs Amazon RDS

Compared 6% of the time

More Amazon RDS Competitors

MongoDB Atlas vs Google Cloud Spanner

Compared 18% of the time

SingleStore vs Google Cloud Spanner

Compared 10% of the time

Google Cloud SQL vs Google Cloud Spanner

Compared 9% of the time

Oracle Database as a Service vs Google Cloud Spanner

Compared 8% of the time

Redis vs Google Cloud Spanner

Compared 8% of the time

More Google Cloud Spanner Competitors

Product Reports

Buyer's Guide

Amazon RDS

August 2025

Download Amazon RDS product report

Buyer's Guide

Database as a Service (DBaaS)

August 2025

Download Google Cloud Spanner product report

Also Known As

RDS

Google Spanner

Overview

Amazon Relational Database Service (Amazon RDS) is a web service that makes it easier to set up, operate, and scale a relational database in the cloud. It provides cost-efficient, resizeable capacity for an industry-standard relational database and manages common database administration tasks.

Amazon Web Services (AWS)

Cloud Spanner is the first and only relational database service that is both strongly consistent and horizontally scalable. With Cloud Spanner you enjoy all the traditional benefits of a relational database: ACID transactions, relational schemas (and schema changes without downtime), SQL queries, high performance, and high availability. But unlike any other relational database service, Cloud Spanner scales horizontally, to hundreds or thousands of servers, so it can handle the highest of transactional workloads. With automatic scaling, synchronous data replication, and node redundancy, Cloud Spanner delivers up to 99.999% (five 9s) of availability for your mission critical applications. In fact, Google’s internal Spanner service has been handling millions of queries per second from many Google services for years.

Google

Sample Customers

Edmodo

Streak, Optiva, Mixpanel

Buyer's Guide

Amazon RDS vs. Google Cloud Spanner

July 2025

Free Report: Amazon RDS vs. Google Cloud Spanner

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