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Amazon RDS vs IBM Informix 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 RDS
Ranking in Relational Databases Tools
8th
Average Rating
8.4
Reviews Sentiment
6.7
Number of Reviews
59
Ranking in other categories
Database as a Service (DBaaS) (2nd)
IBM Informix
Ranking in Relational Databases Tools
25th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
17
Ranking in other categories
Embedded Database (10th)
 

Mindshare comparison

As of August 2026, in the Relational Databases Tools category, the mindshare of Amazon RDS is 1.3%, down from 1.4% compared to the previous year. The mindshare of IBM Informix is 1.8%, up from 1.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
Amazon RDS1.3%
IBM Informix1.8%
Other96.9%
Relational Databases Tools
 

Featured Reviews

reviewer2592669 - PeerSpot reviewer
Director Software Engineer at a computer software company with 10,001+ employees
Positive experiences with database services, with minor room for feature enhancements observed
I don't really see any disadvantages of Amazon RDS. With Oracle, I think AWS doesn't provide the RAC stability. If you have Oracle installed in your own data centers, you can set up various clusters and we can set up the RACs, but in Amazon RDS, we cannot have the RAC feature of Oracle. They could add that feature. Amazon RDS has limitations regarding RAC. If we talk about installing Oracle in RDS, we cannot have the RAC, but if you deploy Oracle on GCP, then there is probably the RAC feature available. I observed that around two or three years back, but I'm not sure whether they have added the RAC feature in AWS. Amazon RDS is expensive compared to GCP. GCP also has the same features, and although it is quite extensive and feature-rich, I see Amazon RDS as slightly expensive compared to other clouds.
Nasir Niamat - PeerSpot reviewer
DB Consultant at i2c
Has offered a cost-effective option despite frequent technical issues and limited market demand
We find some bugs in IBM Informix. Maybe we are using it more aggressively than others. Every month or every second month, we find some bugs in it, which is not ideal. It should be rare, not this frequent. The good thing is they cover those bugs in the next release within weeks or days on demand. IBM Informix should become hybrid and should include AI features similar to other DBMS systems such as Snowflake, Redshift, and DataBricks. This would help its value rise with the market.

Quotes from Members

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

Pros

"Amazon RDS is very easy to use."
"Relational databases excel in extensive normalization, eliminating data redundancy and efficiently structuring tables which leads to a clear and efficient relationship between tables using primary keys."
"The Amazon RDS features I found most valuable are snapshots and automatic backups."
"Amazon RDS makes it easier for me to manage databases compared to traditional databases like MongoDB or local host servers."
"Amazon RDS is easy to maintain and easy to deploy."
"The product's installation phase is easy."
"Very easy to start with."
"Based on my experience, I would rate this solution a nine out of ten."
"It is very easy to install IBM Informix, very easy to scale, and support is quite better."
"The initial setup is very simple."
"Overall, this is a great product. It works really well, is very stable, and is very scalable."
"Replication, all levels of replication, query charting, and the MongoDB embedded are the most valuable features of this solution."
"Every version is faster than the previous."
"We don't have any problems with the Informix Database."
"For IoT business cases, having Informix Enterprise Edition work on edge computers, like Raspberry Pi and using Informix replication, makes complex situations simple to build and maintain."
"The initial setup is pretty easy."
 

Cons

"As a customer of Amazon RDS, you don't have super-user privileges, and that is the only drawback where improvements are required."
"The product's high price is an area of concern where improvements are required."
"One of the challenges of AWS RDS is that it doesn't support performance insight. So we need to write our own script or use third-party tools."
"It would be helpful if they made it easier to migrate from an existing on-premises solution to the cloud-based service."
"Sometimes the interface has many moving parts, which is a concern."
"When we depend on the AWS technical team, we need to pay more. For tech support, they are charging about 25% of the actual bill, which is too high for me."
"Need to have in depth understanding of cost, else we are in position to pay more, which makes us think our own DB is better when cost is very huge amount."
"Amazon RDS should have a more user-friendly graphical user interface and include better database management options."
"This product could be made easier to use for beginners."
"I experienced poor input/output (IO) performance."
"The technical support services need substantial improvement."
"The solution should offer replication. It would be helpful if the solution would allow us to access third-party tools."
"The solution really doesn't add new features very often. Other solutions are much more actively pushing out upgrades and improvements."
"Continue extending the SQL language for compatibility with the competition's language, including Stored Procedure Language."
"Informix is very sturdy, but the problem for us is the marketing action around Informix."
"The solution doesn't include functionality like data anonymization."
 

Pricing and Cost Advice

"I would rate the tool's pricing an eight out of ten."
"Amazon RDS is an expensive solution."
"The solution is expensive."
"In my case, MySQL is free, and if there are any costs, then it is much less than other solutions since all such things usually come bundled with the hardware."
"The prices for different regions are different."
"Amazon RDS is less expensive than other solutions."
"The price of Amazon RDS is reasonable."
"The cost is manageable because you can see the expense associated with each instance and utilize tools for tagging and cost control."
"For me, it's always too expensive."
"The product has reasonable pricing. We purchase its yearly license."
"I am not aware of the licensing costs or terms."
"The free edition can be enough to handle moderate-size implementations, but you may want a pay for edition to benefit from more functionality, such as replication."
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Top Industries

By visitors reading reviews
Construction Company
10%
Financial Services Firm
10%
Computer Software Company
8%
University
7%
Construction Company
11%
Comms Service Provider
9%
Financial Services Firm
8%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business23
Midsize Enterprise16
Large Enterprise24
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise2
Large Enterprise8
 

Questions from the Community

What needs improvement with Amazon RDS?
I think Amazon RDS can be improved or enhanced if it can be implemented with other monitoring tools such as Percona. Currently, I am trying to add Percona monitoring for monitoring in addition to i...
What is your primary use case for Amazon RDS?
Amazon RDS is typically used for AI applications. I am developing it for an AI recruitment agent and for collecting data for HRIS, Software as a Service for a workforce as a service, and storing data.
What is your experience regarding pricing and costs for IBM Informix?
There is a cost reason to move from IBM Informix. It is relatively cheaper than Oracle. The second reason is that moving the whole application to a new database would require significant cost. The ...
What needs improvement with IBM Informix?
We find some bugs in IBM Informix. Maybe we are using it more aggressively than others. Every month or every second month, we find some bugs in it, which is not ideal. It should be rare, not this f...
What is your primary use case for IBM Informix?
We are using IBM Informix for OLTP systems. We are using IBM Informix although it is a technology that is not very popular compared to others. We are using it because our application was initially ...
 

Also Known As

RDS
Informix
 

Overview

 

Sample Customers

Edmodo
Shaspa, Hildebrand, Kaifa, Ranhill Powertron, Federaci‹ Farmacutica (FedeFarma), Camden Council, The German Aerospace Center (DLR), Myers, Votorantim Group, Doosan Infracore, GreenIvory
Find out what your peers are saying about Amazon RDS vs. IBM Informix and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.