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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:
 

ROI

Sentiment score
5.8
Kali Linux offers cost-effective security tools with DevOps integration, saving time and resources without upfront costs.
Sentiment score
6.0
<p>PostgreSQL on Ubuntu offers significant cost savings and flexibility, providing 10-40% savings and enhancing R&amp;D opportunities.</p>
Integrating Kali Linux with DevOps tools has resulted in reduced operational costs due to automated test cases, making it a worthwhile investment with significant returns by decreasing the attack surface area and the frequency of attack incidents.
SWE-1 at a tech vendor with 10,001+ employees
If we had installed it on-premises or through other means, it would have incurred significant money and effort to create the VMs, deploy it on machines, and then delete and format it after use.
Cloud Security Architect at a tech services company with 10,001+ employees
Kali Linux is a time-saving and cost-saving solution.
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
Since there are no upfront licensing fees, the ROI is increased with a scalable system without exponential cost growth.
Senior software developer at Simplifyvms
Think about if you are in a different geographic location and your cluster is hosted in two different geographic locations, maybe one in South Pacific and one in Western Europe. In both cases, if write transactions are happening, this is a good way to basically order the transactions so that the eventual data consistency is there.
Specialist Programmer L3 at Infosys
If I look into the market, I have very heavy products, and even MySQL is also open source, but PostgreSQL on Ubuntu gives me a lot of savings in terms if I were to go to any other vendor which has a license.
Manager Dev Ops at a tech services company with 10,001+ employees
 

Customer Service

Sentiment score
5.2
Kali Linux users rely on active community forums and documentation for effective support and troubleshooting, with generally positive experiences.
Sentiment score
5.5
PostgreSQL support on Ubuntu is praised for responsiveness, with users relying on documentation, community support, and automatic updates.
Since most of the tools and other things are community-based, the documentation and other community support are very good.
Cloud Security Architect at a tech services company with 10,001+ employees
I was able to solve the problems I was experiencing.
Product security engineer at a tech vendor with 10,001+ employees
Customer support for Kali Linux relies heavily on community documentation due to its open-source nature.
Securuty solution architect at a tech services company with 10,001+ employees
PostgreSQL on Ubuntu also has some of the most detailed technical documentation in existence.
Founder & Bio-IT Architect at France Farms
Community support is usually helpful in addressing queries and finding solutions to various scenarios.
Director IT at Artizense Hub
When I needed help with my vector search, I contacted them, and they provided substantial assistance.
AI Engineer at a educational organization with 51-200 employees
 

Scalability Issues

Sentiment score
7.6
Kali Linux offers scalability across environments, supporting devices efficiently with positive performance linked to available hardware resources.
Sentiment score
6.5
PostgreSQL on Ubuntu scales well with vertical scaling, efficient resource use, JSONB support, but setup complexity and cloud integration desired.
It is lightweight compared to Windows and scales well, especially in a VM environment.
Securuty solution architect at a tech services company with 10,001+ employees
You can use it on cloud, VPS, and on-premises.
Security Researcher at a consultancy with 10,001+ employees
I would describe Kali Linux's scalability as very scalable because I can deploy it on a range of different machines, whether that is my laptop or using maybe Raspberry Pi or Android.
Cloud Ops Lead at a tech vendor with 10,001+ employees
The scalability of PostgreSQL on Ubuntu is very good because complex joins are performed smoothly and efficiently.
Senior software developer at Simplifyvms
I do not see any limits in scalability for PostgreSQL on Ubuntu; it scales well without constraints.
Director IT at Artizense Hub
I cannot reduce them back because I do not know what sort of data I need and which sort of data I need to discard. That is a very difficult decision to make.
Manager Dev Ops at a tech services company with 10,001+ employees
 

Stability Issues

Sentiment score
8.0
Kali Linux is praised for stability, especially in virtualization, with regular updates and effective maintenance by Offensive Security.
Sentiment score
8.1
PostgreSQL on Ubuntu is stable and scalable, praised for its reliability, effective updates, and strong data integrity in large applications.
We utilize snapshots for penetration testing, allowing us to revert back if anything goes wrong, which is one of its good features.
Securuty solution architect at a tech services company with 10,001+ employees
Due to the huge user base that uses it, it is kept up to date regularly.
Cloud Ops Lead at a tech vendor with 10,001+ employees
Kali Linux is stable for my use cases, though not the latest version.
Product security engineer at a tech vendor with 10,001+ employees
It also guarantees asset compliance; after atomicity, consistency, isolation, and durability, it means that even if the power goes out during a transaction, PostgreSQL on Ubuntu ensures that the data is 100 percent saved or rolled back.
Founder & Bio-IT Architect at France Farms
PostgreSQL on Ubuntu is quite stable.
Specialist Programmer L3 at Infosys
PostgreSQL on Ubuntu is handling my production infrastructures very well and it is going very good.
Manager Dev Ops at a tech services company with 10,001+ employees
 

Room For Improvement

Kali Linux needs improved usability, stability, and community support, with enhancements in security, documentation, and AI integration.
PostgreSQL on Ubuntu seeks optimized speed, enhanced features, and better scalability through improved tools, monitoring, and user interfaces.
If real-time customized port scanning can be added, for example, instead of a default port such as 8080 or 443, if we can use a customized port such as 9876, that capability would be great.
Senior Technical Manager at a tech vendor with 10,001+ employees
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.
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
If there were video courses attached to how to safely use it, especially for absolute beginners with no previous experience using Linux operating systems, I think that could be very useful.
Cloud Ops Lead at a tech vendor with 10,001+ employees
Maybe it makes more sense to use AI for configuration in future updates of PostgreSQL on Ubuntu so that the database is automatically optimized for the best performance for a given hardware.
Head of IT at Givo Pvt Ltd
I would also appreciate the ability to use the EXPLAIN ANALYZE tool.
Consultant at a tech vendor with 10,001+ employees
Optimizing index management such as adding proper indexes and removing unused ones.
Senior software developer at Simplifyvms
 

Setup Cost

Kali Linux is cost-effective for enterprises, primarily free but offers a perpetual license option for enterprise versions.
PostgreSQL on Ubuntu offers a cost-effective, open-source database solution, with SaaS options under $5, ensuring budget-friendly implementation.
I simply create a VM, so there are no costs involved.
Senior Solution Architect & Delivery Lead at a tech services company with 10,001+ employees
My experience with pricing, setup costs, and licensing for Kali Linux has been positive, as it operates under an open-source model.
SWE-1 at a tech vendor with 10,001+ employees
The pricing and the deployment, resource usage are all spot on and clearly defined, making it helpful and useful for me to deploy and calculate costs.
Cloud Security Architect at a tech services company with 10,001+ employees
We were on the lowest tier, so it was around $5 or something.
Head of IT at Givo Pvt Ltd
My experience with pricing, setup cost, and licensing for PostgreSQL on Ubuntu is based on the fact that I am using it as a free source, free open source.
Student at a university with 501-1,000 employees
The price model for PostgreSQL on Ubuntu is not expensive; it is affordable since most solutions we use are completely open source, leading to lower costs.
Director IT at Artizense Hub
 

Valuable Features

Kali Linux excels in security tools, seamless installation, and customization, making it ideal for ethical hackers and IT professionals.
PostgreSQL on Ubuntu offers reliability, advanced features, and scalability with efficient resource use and seamless cloud integration.
Kali Linux has positively impacted my organization by improving efficiency in penetration testing; its open-source nature permits extensive customization and inclusion of numerous comprehensive pre-installed tools, contributing to a secure network environment with effective monitoring of network applications.
SWE-1 at a tech vendor with 10,001+ employees
A unique and really helpful feature of Kali Linux, compared to other operating systems, is that many of the offensive security tools are already pre-configured and pre-installed.
Product security engineer at a tech vendor with 10,001+ employees
Kali Linux positively impacts my organization by allowing us to monitor changes and security posture for the company.
Consultant at Cognizant
One of the most important points about PostgreSQL on Ubuntu is that it is free.
Head of IT at Givo Pvt Ltd
Overall, PostgreSQL on Ubuntu is a powerful and reliable database management system; it is easy to use and good for students who want to move beyond basic and industry-level skills.
Student at a university with 501-1,000 employees
Any open-source software allows me to look into the code, understand the logic, and mold my code according to it, and it will work perfectly rather than proprietary solutions where I am very much dependent on the vendor and have to wait for their next release to fix things.
Manager Dev Ops at a tech services company with 10,001+ employees
 

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
14th
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
12
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Operating Systems (OS) for Business category, the mindshare of Kali Linux is 4.1%, up from 2.2% compared to the previous year. The mindshare of PostgreSQL on Ubuntu is 0.8%, up from 0.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Kali Linux4.1%
PostgreSQL on Ubuntu0.8%
Other95.1%
Operating Systems (OS) for Business
 

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.
David François - PeerSpot reviewer
Founder & Bio-IT Architect at France Farms
Creating a sovereign trust machine has secured agricultural provenance and now builds global buyer confidence
To better serve my sovereign bio-IT projects such as France Farms, PostgreSQL on Ubuntu could be improved in three key areas. First, a native GUI for hashing security management would be beneficial; while the pgcrypto extension is powerful, having a native Ubuntu-optimized graphical interface for managing cryptographic keys and audit logs would lower the barrier for non-expert administrators in the field. I have been good at this because I was really focused on getting France Farms to work, and I used my flavor of AI to assist me. Second, automated edge-to-cloud syncing would be a game-changer; a built-in lightweight tool for offline-first synchronization would be invaluable in regions such as the Caribbean, South America, or Africa, where internet connectivity can be intermittent. Having a native Ubuntu service that manages PostgreSQL on Ubuntu data syncing to AWS automatically when the connection is restored would improve the trust machine's reliability. Third, streamlined ZFS integration for data snapshots would help ensure absolute data integrity. Integrating ZFS file system snapshots directly onto PostgreSQL on Ubuntu management tools on Ubuntu would allow for transparent, instant, tamper-proof backups, giving sovereign projects an extra layer of defense against accidental data loss or hardware failure.
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Top Industries

By visitors reading reviews
University
12%
Construction Company
12%
Comms Service Provider
11%
Computer Software Company
9%
Construction Company
29%
Comms Service Provider
11%
Financial Services Firm
9%
Computer Software Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise2
Large Enterprise17
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise3
Large Enterprise9
 

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?
My experience with pricing, setup cost, and licensing for PostgreSQL on Ubuntu is based on the fact that I am using it as a free source, free open source. Therefore, I have never needed to consider...
What needs improvement with PostgreSQL on Ubuntu?
PostgreSQL on Ubuntu can be improved by providing some inbuilt AI agent mode, as nowadays many applications are offering such features. The installation process can sometimes be confusing for new u...
What is your primary use case for PostgreSQL on Ubuntu?
My main use case for PostgreSQL on Ubuntu is for storing the database, and I'm using Ubuntu because it is open source. Like multiple operating systems, it will support it because one of my friends ...
 

Overview

Find out what your peers are saying about Kali Linux vs. PostgreSQL on Ubuntu and other solutions. Updated: April 2026.
893,164 professionals have used our research since 2012.