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IBM Informix pros and cons

Vendor: IBM
4.1 out of 5

Pros & Cons summary

Buyer's Guide

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Prominent pros & cons

PROS

IBM Informix offers impressive speed improvements in every new version.
It facilitates financial reporting and automates tasks, allowing users to focus on other responsibilities.
The system's stability, performance, enhanced functionality, and excellent replication features are highly valued.
IBM Informix excels in scalability, supports high concurrency for OLTP, and is better than Oracle for large-scale data types.
Installation and scaling are straightforward, with strong support and integration capabilities.

CONS

Pricing is considered a bit expensive.
IBM Informix does not frequently add new features.
The technical support services need substantial improvement.
There is a need for current tools and better functionality overall.
IBM salespeople often overlook IBM Informix.
 

IBM Informix Pros review quotes

Nasir Niamat - PeerSpot reviewer
DB Consultant at i2c
Sep 30, 2025
It is very easy to install IBM Informix, very easy to scale, and support is quite better.
Nazzareno Maria Rezzini - PeerSpot reviewer
Senior Oracle Database and Systems Administrator at Dedagroup
Jan 8, 2024
It supports multiple applications and business intelligence tools.
PK
ING ( technical developer) at Centrum
Jul 31, 2023
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.
Learn what your peers think about IBM Informix. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
892,943 professionals have used our research since 2012.
EV
General Manager and Architect - Informix Expertise at Begooden-IT Consulting
Sep 2, 2022
Replication, all levels of replication, query charting, and the MongoDB embedded are the most valuable features of this solution.
SF
Executive Director at Dynamic Tomorrow
Dec 27, 2021
The stability is incredible. I have customers with uptimes of several years.
reviewer1549332 - PeerSpot reviewer
Head of Department at a transportation company with 10,001+ employees
Apr 8, 2021
So far, we do not have a lot of issues. It's pretty problem-free.
DB
Database Administrator at a energy/utilities company with 5,001-10,000 employees
Mar 29, 2021
The initial setup is pretty easy.
HR
Acting Snr Manager: Enterprise Architecture & Process Management at Road Accident Fund
Apr 12, 2023
It supports in-house-built applications in .NET and VB6
MA
General Manager at New System Engineering
Dec 22, 2021
Replication is a valuable feature and easy to use.
it_user1711260 - PeerSpot reviewer
Database specialist at a tech services company with 51-200 employees
Nov 7, 2021
The scalability is very good.
 

IBM Informix Cons review quotes

Nasir Niamat - PeerSpot reviewer
DB Consultant at i2c
Sep 30, 2025
Every month or every second month, we find some bugs in it, which is not ideal.
Nazzareno Maria Rezzini - PeerSpot reviewer
Senior Oracle Database and Systems Administrator at Dedagroup
Jan 8, 2024
The technical support services need substantial improvement.
PK
ING ( technical developer) at Centrum
Jul 31, 2023
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.
Learn what your peers think about IBM Informix. Get advice and tips from experienced pros sharing their opinions. Updated: April 2026.
892,943 professionals have used our research since 2012.
EV
General Manager and Architect - Informix Expertise at Begooden-IT Consulting
Sep 2, 2022
It would be helpful to have IBM salespeople know that Informix exists, and sell it. Currently, it is completely ignored by IBM.
SF
Executive Director at Dynamic Tomorrow
Dec 27, 2021
This product could be made easier to use for beginners.
reviewer1549332 - PeerSpot reviewer
Head of Department at a transportation company with 10,001+ employees
Apr 8, 2021
The solution really doesn't add new features very often.
DB
Database Administrator at a energy/utilities company with 5,001-10,000 employees
Mar 29, 2021
The pricing is a bit expensive.
HR
Acting Snr Manager: Enterprise Architecture & Process Management at Road Accident Fund
Apr 12, 2023
I experienced poor input/output (IO) performance.
MA
General Manager at New System Engineering
Dec 22, 2021
The solution lacks some functionality.
it_user1711260 - PeerSpot reviewer
Database specialist at a tech services company with 51-200 employees
Nov 7, 2021
I would like to see backups from secondary servers.