Try our new research platform with insights from 80,000+ expert users

Firebird SQL vs IBM Informix comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 4, 2025

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

Firebird SQL
Ranking in Embedded Database
1st
Average Rating
7.8
Reviews Sentiment
7.4
Number of Reviews
15
Ranking in other categories
Open Source Databases (1st)
IBM Informix
Ranking in Embedded Database
9th
Average Rating
8.6
Reviews Sentiment
7.7
Number of Reviews
16
Ranking in other categories
Relational Databases Tools (17th)
 

Mindshare comparison

As of June 2025, in the Embedded Database category, the mindshare of Firebird SQL is 23.5%, down from 24.0% compared to the previous year. The mindshare of IBM Informix is 1.4%, up from 1.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Embedded Database
 

Featured Reviews

Nicolae Ancuta - PeerSpot reviewer
Strong event capabilities, allowing raising and displaying events in applications
On large databases, we have some difficulties. It is one of the areas of improvement. For example, under one gigabyte, it works perfectly. Between one and five gigabytes, you might experience some slight performance issues, but they are not significant. Beyond that, you have to index it, tier it, and perform some restore operations to free up space. It requires some effort, but it's manageable. It's quite challenging for the customer. Moreover, migrating from one firewall solution to another was a little bit difficult regarding the backup and restoring the other one. Since we have many databases, we didn't go forward with the latest versions.
Nazzareno Maria Rezzini - PeerSpot reviewer
Supports multiple business intelligence tools, but the technical support services need improvement
IBM Informix is a central database solution across various environments, supporting multiple applications and business intelligence tools The key areas for improvement revolve around understanding the current customer trends and demands, particularly in software and database requirements. The…

Quotes from Members

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

Pros

"The most valuable feature of Firebird SQL is the creation of databases."
"The most valuable feature of the solution is that it is reliable, offers good performance, and is easy to use."
"It helps us in detecting all kinds of problems in the code, such as bad quality, unclear code, or any violation in the code or best practices."
"Firebird SQL is an open-source solution."
"The documentation is very well written."
"I like that we don't have to pay external fees to migrate this data. So, we are looking to relocate from Postgres or EDB."
"I appreciate the fact that, once the database is embedded, it doesn't need to be administered, and removes the requirement for a specific server."
"I can deploy it on Linux, Mac OS, and Windows — it's very easy."
"The stability is incredible. I have customers with uptimes of several years."
"It supports multiple applications and business intelligence tools."
"The solution's stability, performance, enhanced functionality, and replication are all great features."
"IBM Informix benefits users with high availability and good integration capabilities."
"It supports in-house-built applications in .NET and VB6"
"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."
"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."
"Replication, all levels of replication, query charting, and the MongoDB embedded are the most valuable features of this solution."
 

Cons

"The security of the users could improve in Firebird SQL."
"It would be interesting if they added functionality with redundancy, reputation, and variability."
"Firebird SQL's performance has slowed since Firebird SQL 3 or 3.5 versions, where they developed over-the-wire encryption."
"Technical support and performance could be better. We have some problems with this solution, but we don't know if the problem is with the database or the configuration. For example, sometimes, the users can't access the database."
"It would be nice to have a graphical user interface to handle the product."
"It is not easy to integrate the tool with Visual Studio."
"It would be good to have more automation and integration with the tools from other vendors."
"On large databases, we have some difficulties."
"I really would love to have a QT plugin."
"I experienced poor input/output (IO) performance."
"This solution is in need of more current tools."
"The solution really doesn't add new features very often."
"The technical support services need substantial improvement."
"This product could be made easier to use for beginners."
"There should be more intelligence surrounding discovering data to be able to automatically create indexes."
"It would be helpful to have IBM salespeople know that Informix exists, and sell it. Currently, it is completely ignored by IBM."
 

Pricing and Cost Advice

"I was using the free version of Firebird SQL."
"There is no licensing cost for this solution, as it is open-source."
"We are using the free solution, so there is no cost involved."
"There is a yearly maintenance fee for the use of the solution."
"It is okay."
"The tool is open source."
"Firebird SQL is an open-source solution, which means it is a free product."
"The most valuable feature of the solution is that it is freely available."
"I am not aware of the licensing costs or terms."
"The product has reasonable pricing. We purchase its yearly license."
"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."
report
Use our free recommendation engine to learn which Embedded Database solutions are best for your needs.
859,129 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Computer Software Company
17%
Comms Service Provider
12%
Financial Services Firm
8%
Manufacturing Company
7%
Educational Organization
38%
Financial Services Firm
9%
Computer Software Company
8%
Retailer
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

How does Firebird SQL compare with PostgreSQL?
PostgreSQL was designed in a way that provides you with not only a high degree of flexibility but also offers you a cheap and easy-to-use solution. It gives you the ability to redesign and audit yo...
What do you like most about Firebird SQL?
Firebird SQL is an open-source solution.
What do you like most about IBM Informix?
It supports multiple applications and business intelligence tools.
What is your experience regarding pricing and costs for IBM Informix?
The product has reasonable pricing. We purchase its yearly license.
What needs improvement with IBM Informix?
The key areas for improvement revolve around understanding the current customer trends and demands, particularly in software and database requirements. The product's performance could be better com...
 

Comparisons

 

Also Known As

No data available
Informix
 

Overview

 

Sample Customers

Elekt Labs, Streamsoft, wobe-systems GmbH, DRB Systems, Moscow City Hospital #31
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 Firebird SQL vs. IBM Informix and other solutions. Updated: June 2025.
859,129 professionals have used our research since 2012.