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Amazon RDS vs IBM Informix comparison

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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
9th
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
28th
Average Rating
8.2
Reviews Sentiment
7.5
Number of Reviews
17
Ranking in other categories
Embedded Database (10th)
 

Mindshare comparison

As of October 2026, in the Relational Databases Tools category, the mindshare of Amazon RDS is 1.4%, up from 1.3% compared to the previous year. The mindshare of IBM Informix is 1.8%, down from 1.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Relational Databases Tools Mindshare Distribution
ProductMindshare (%)
Amazon RDS1.4%
IBM Informix1.8%
Other96.8%
Relational Databases Tools
 

Featured Reviews

Donny Trijatmiko - PeerSpot reviewer
Dev Ops Engineer at MyRobin.ID
Managed databases have simplified recovery and high availability for AI recruitment workloads
The features of Amazon RDS that I have found most valuable and useful so far are its fully managed service, point-in-time restore, and other serverless features such as snapshots and backups, which have eased my job to manage databases. The automated backups of Amazon RDS help in data recovery by mitigating disaster recovery. I can revert to the nearest time if there is any data corruption or other issues, and this helps tremendously. I assess Amazon RDS's read replica feature for improving application performance as good. For standby nodes in Amazon RDS, I am using them for high failover, and so far it has been performing well. I have used Amazon RDS's Multi-AZ deployments, and it helps enhance data availability by providing high failover. It enhances high availability for my application as well.
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 fulfills PCI requirements, which is a valuable feature for us."
"The solution is good for on-premise deployments."
"It's very useful to save customer's data in a secure manner, we can easily handle all the customer records with encryption mode."
"RDS MySQL (and Postgres) are great managed database services."
"It is easy to use, flexible, and powerful."
"The most valuable aspect of Amazon RDS is it is on the cloud."
"Aurora, the RDS product, is excellent."
"The solution has unique features like backup and recovery, and snapshots. It upgrades automatically. The solution offers easy analytics concerning performance metrics. Its reliability and scalability are very good. The tool's most valuable features are disaster recovery, high availability and scalability."
"The stability is incredible. I have customers with uptimes of several years."
"My advice is to take it; you will never regret it."
"The solution's stability, performance, enhanced functionality, and replication are all great features."
"This solution has made financial reporting possible by allowing financial people the opportunity to set Informix to "Auto Pilot" so that they can attend other duties."
"The scalability is very good."
"Informix can support huge quantities of data with less memory and less capacity."
"The initial setup is pretty easy."
"The most valuable feature is concurrency and locking because my customers usually use databases in OLTP mode. So, for a large number of competitive users. Other features that are well valued are quick large-scale data types. It is better than Oracle."
 

Cons

"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."
"RDS doesn't have shell access."
"The setup might be a bit challenging for multi-level applications."
"There are some advanced monitoring queries that we cannot execute because Amazon doesn't give admin privileges to the end users."
"The solution is a bit expensive."
"They should add a feature for manual SQL patching in RDS."
"User interface needs improvement for using IPS and CloudWatch to scale and utilize read replicas, enabling performance insights to view query formats where the bottlenecks occur, identifying the fixes, slow queries, and missing indexes, improving the security and monitoring with alerts."
"The security features could be improved."
"There should be more intelligence surrounding discovering data to be able to automatically create indexes."
"The pricing is a bit expensive."
"The product needs a lot more marketing involvement from IBM."
"The support team could include local engineers to establish efficient communication. It will help us speed up the escalation process."
"It would be helpful to have IBM salespeople know that Informix exists, and sell it. Currently, it is completely ignored by IBM."
"In my opinion, the packages could be improved. The version I use doesn't allow for packages. I can do some general procedures, but no packages like in Oracle. So, develop separate modules in SQL language. This would be most beneficial for me."
"This solution is in need of more current tools."
"For me, it's always too expensive. The problem is that Informix sometimes competes with free products, so yes, it's very expensive, but when we're talking about licensed products like SQL Server or anything, the midsize pricing could be significantly improved."
 

Pricing and Cost Advice

"By using a combination of Reserve Instances and On-Demand pricing, you can reduce the cost."
"The pricing of RDS is a little bit high compared to Microsoft... However, it is a good price compared to other solutions."
"Licensing fees are paid on an annual basis."
"The price of Amazon RDS is reasonable."
"The prices for different regions are different."
"The solution’s pricing could be cheaper."
"Amazon RDS is not a very expensive solution."
"Amazon RDS is cheaper compared to other tools."
"I am not aware of the licensing costs or terms."
"For me, it's always too expensive."
"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."
"The product has reasonable pricing. We purchase its yearly license."
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Top Industries

By visitors reading reviews
Construction Company
10%
Outsourcing Company
9%
Financial Services Firm
8%
University
7%
Comms Service Provider
13%
Construction Company
11%
Outsourcing Company
9%
Manufacturing Company
8%
 

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: September 2026.
915,341 professionals have used our research since 2012.