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Kali Linux vs PostgreSQL on Ubuntu 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

Kali Linux
Ranking in Operating Systems (OS) for Business
10th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
25
Ranking in other categories
No ranking in other categories
PostgreSQL on Ubuntu
Ranking in Operating Systems (OS) for Business
31st
Average Rating
8.6
Reviews Sentiment
6.6
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Featured Reviews

Ciyagi Ciyagi - PeerSpot reviewer
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
Runs efficiently across devices and streamlines penetration testing workflows
Kali Linux could be improved by including more tools. I would personally like to see improvements in Kali Linux, particularly regarding Grub issues that sometimes occur when installing the VM. Additionally, I have experienced problems when updating Kali Linux from a higher version to a lower version, which resulted in crashes. These Grub issues should be resolved. I face significant challenges with Kali Linux regarding a major issue with the Grub loader becoming corrupted, which makes it very difficult to recover data.
Pranay Jain - PeerSpot reviewer
Senior Software Developer at hireHQ
Robust relational queries have supported secure user data growth and improve transaction safety
The best features PostgreSQL on Ubuntu offers are complex joins, which allow us to perform advanced SQL queries, providing the atomicity of our tables, ACID properties for transaction safety, and scalability that we can expand to, as we currently have 10 lakh users, and it is easily scalable. Complex joins are the best feature that PostgreSQL on Ubuntu provides because I have been using NoSQL solutions such as MongoDB, but PostgreSQL has better efficiency for complex queries when used correctly. PostgreSQL on Ubuntu has positively impacted our organization because, from the initial phase with around 1,000 plus users during user accessibility testing, we defined the tables in such a manner that even with future scalability increases, it would function well, and now it has grown to 10 lakh users, still holding up well with fast data retrieval and good query performance, supported by effective indexing methods. In our user table with PostgreSQL on Ubuntu, we initially added indexing on the email property, but after a while, we found that the phone number field was also frequently used, and adding indexing to it improved our query retrieving speed and efficiency by almost 20 to 30 percent.

Quotes from Members

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

Pros

"Kali Linux has positively impacted my work by facilitating and simplifying the setup for an operating system and installing tools."
"Kali Linux offers excellent features including being lightweight with low memory usage, easy installation, portability, and multiple architectures such as ARM architecture and server architecture."
"The most effective features of Kali Linux include its stability as a Linux operating system, its flexibility in configuring resources such as partitions, its powerful and stable file system, and its multi-user capability, which allows for setting user privileges and rights. Additionally, Kali Linux provides access to a wide range of free and open-source applications for testing and development purposes."
"The outcomes from using Kali Linux in our organization are significant; we experienced reduced cybersecurity attacks and improved application security, leading to decreased attack surfaces and quicker testing cycles that enabled faster launches and installations."
"Kali Linux stands out compared to other operating systems I have used for security work because it is a specific distribution of Linux that has all the required tools pre-loaded and configured."
"Kali Linux offers excellent features including being lightweight with low memory usage, easy installation, portability, and multiple architectures such as ARM architecture and server architecture."
"The most valuable feature of Kali Linux is the attack it performs using a CVE script that's already on the internet."
"The tools available in Kali Linux are incredibly effective for conducting security assessments."
"PostgreSQL on Ubuntu has positively impacted my organization by being very reliable; it has solid recovery and the risk of data loss is very low, making it very robust and ideal for production projects."
"PostgreSQL on Ubuntu has positively impacted our organization because, from the initial phase with around 1,000 plus users during user accessibility testing, we defined the tables in such a manner that even with future scalability increases, it would function well, and now it has grown to 10 lakh users, still holding up well with fast data retrieval and good query performance, supported by effective indexing methods."
"The best advantage of PostgreSQL on Ubuntu is its ability to fulfill all our requirements as an RDBMS; we frequently use various database-related operations such as storing, retrieving, and utilizing views and triggers, and its concurrency and connection handling are very efficient, especially since we have around 1,000 users."
"The best feature of PostgreSQL on Ubuntu is its structure because it adds clarity and understanding when investigating a database, which enhances readability and understandability for someone new to the project."
"PostgreSQL on Ubuntu offers reliability, performance, and cost-effectiveness, which were the primary factors in our decision to choose this database."
"We have worked with various databases including SQL Server and MySQL, but I found PostgreSQL on Ubuntu to be the most cost-effective and most performance-friendly solution."
 

Cons

"There are areas for improvement in Kali Linux, particularly regarding its use of the Linux kernel, which requires external additional patching, and the fact that network services are disabled by default, which complicates usage; enhancing user-friendliness through more GUI-based tools and better integration could be beneficial."
"The product should integrate AI and GPT capabilities."
"The only point that I didn't find on Kali Linux for now is the ability to customize port scanning."
"While Kali Linux has gotten better over the past years, it could be improved if it was bundled in a CLI-only pack."
"Any new user or someone without deep expertise won't be able to understand how to scale or manage it"
"The product should improve its security features."
"The tool is already stable and well-developed, so there's minimal feedback for enhancement or change. However, it should improve security, which is crucial, especially with the increasing use of Kali Linux in cloud environments."
"I would like to have automation in Kali Linux instead of manually configuring or setting up something in case of an upgrade."
"PostgreSQL on Ubuntu can be improved in terms of flexibility, which comes at a cost—specifically its learning curve and complexity."
"I did notice one downside about PostgreSQL on Ubuntu. Certain queries were not behaving in the same way that SQL Server was handling those queries."
"PostgreSQL on Ubuntu can be improved because it is a bit slower than other solutions I have used."
"From an improvement perspective, the UI of PostgreSQL on Ubuntu can be somewhat better because from my experience, it is outdated compared to current UI generations, and the reliability without changing the entire system architecture can also be improved, along with optimizing index management such as adding proper indexes and removing unused ones."
 

Pricing and Cost Advice

"I use it free of charge."
"The tool is open-source."
"Kali Linux is a free product, and you don't have to pay for a license."
"It is an open-source tool."
"There is no need to make any payments towards the licensing costs since it is a solution that is available for free."
"Kali Linux offers a perpetual license, meaning you pay for it once and can use it. While free versions of Linux are available, Kali Linux, being an enterprise edition, usually comes with a perpetual license. I rate its pricing a five out of ten."
"I have used the free version."
"The price is good because Kali Linux already provides a good bundle of tools."
Information not available
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Top Industries

By visitors reading reviews
University
14%
Comms Service Provider
13%
Computer Software Company
10%
Educational Organization
10%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise16
By reviewers
Company SizeCount
Small Business5
Large Enterprise4
 

Questions from the Community

What do you like most about Kali Linux?
I use the tool with Nmap to perform network audits. We use it to find vulnerabilities in our network through attacks. It's for those who want to launch or create viruses or perform attacks on syste...
What is your experience regarding pricing and costs for Kali Linux?
My experience with pricing, setup cost, and licensing for Kali Linux has been that it was free to use.
What needs improvement with Kali Linux?
I think Kali Linux is good, but there is a widespread misunderstanding related to Kali Linux because many people believe Kali Linux is a tool for hackers and that anything can be hacked using it. T...
What is your experience regarding pricing and costs for PostgreSQL on Ubuntu?
For the Software as a Service version, we were using PostgreSQL on Ubuntu and paid some amount. It was not a very large amount for PostgreSQL on Ubuntu. We were on the lowest tier, so it was around...
What needs improvement with PostgreSQL on Ubuntu?
From an improvement perspective, the UI of PostgreSQL on Ubuntu can be somewhat better because from my experience, it is outdated compared to current UI generations, and the reliability without cha...
What is your primary use case for PostgreSQL on Ubuntu?
The main use case for PostgreSQL on Ubuntu is storing the database and serving as our primary database for storing the credentials of users and other information, including candidate data and enter...
 

Overview

Information not available
Find out what your peers are saying about Kali Linux vs. PostgreSQL on Ubuntu and other solutions. Updated: March 2026.
884,797 professionals have used our research since 2012.