Docker on Ubuntu 18.04 LTS vs PubNub comparison

Docker on Ubuntu 18.04 LTS

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Executive Summary

We performed a comparison between Docker on Ubuntu 18.04 LTS and PubNub based on real PeerSpot user reviews.

Find out in this report how the two AWS Marketplace solutions compare in terms of features, pricing, service and support, easy of deployment, and ROI.

To learn more, read our detailed Docker on Ubuntu 18.04 LTS vs. PubNub Report (Updated: October 2026).

Docker on Ubuntu 18.04 LTS vs. PubNub

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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

Docker on Ubuntu 18.04 LTS

Ranking in AWS Marketplace

448th

Average Rating

9.6

Number of Reviews

Ranking in other categories

No ranking in other categories

PubNub

Ranking in AWS Marketplace

19th

Average Rating

8.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

Arkajyoti Misra

Associate Director at Husk Power Systems

Containerization has accelerated testing cycles and consistently reduced time to market

Docker on Ubuntu 18.04 LTS is a very mature product, and I don't think there is a lot of improvement that they need to do on their end. The Docker team is coming up with new features, and integration with the IDE, for example, would be amazing. Support on Windows is not so great from Docker, so that is something that they could examine. I chose nine out of ten for Docker on Ubuntu 18.04 LTS because I think they could improve a little more on optimization. It sometimes demands a lot of RAM and computing power, so that is one area that the Docker team could improve upon.

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Kirtishil Patil

Senior Frontend Developer at Globant

Real-time chat has boosted one-to-one messaging and user engagement in my mobile projects

The best features PubNub offers, in my opinion, are one-to-one chat, as I mentioned in my review, and the great SDK documentation which allows for easy integration that does not take much time. Setting up channels, message listeners, tracking user status to determine whether users are online or offline, and ensuring reliable message delivery are all great features. I find myself relying on all three of those features the most because the presence tracking is great, the delivery speed is superb compared to other SDKs, and the user status updates immediately pop up, which is significant. The integration is very easy, so any new developers can easily understand the integration process thanks to the clear documentation. PubNub has positively impacted my organization as I have received numerous reviews and feedback stating that the chat works much faster and cleaner, and everyone appreciates it, saying it feels powerful. After implementing PubNub, I noticed positive outcomes such as client feedback acknowledging that they enjoyed the chat features and found them much faster than in other applications, which I believe is very positive feedback for any organization.

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Quotes from Members

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

Pros

"Fast deployment is the main benefit."

"Docker on Ubuntu 18.04 LTS makes both managing and deploying that service easier for me."

"Docker on Ubuntu 18.04 LTS positively impacts my organization because we have sped up our development very quickly, and our team has grown quickly, not only because of Docker but also due to Docker."

"Ease of use from the developer's point of view is the best feature."

"PubNub has positively impacted my organization by reducing implementation time and developers' work, making it very easy to implement and enabling fast development that has reduced the developers' time by 40-50%."

"If we had implemented all of this on our own, we would have had to hire at least 50 more employees for that, so we are very happy with PubNub and we have saved a lot of time."

"PubNub has positively impacted my organization as I have received numerous reviews and feedback stating that the chat works much faster and cleaner, and everyone appreciates it, saying it feels powerful."

"PubNub saves development time because we do not have to create a complete chat backend and frontend from scratch, enabling a plug-and-play approach that saves time, effort, and money for the company."

"The speed and efficiency of PubNub, which helps transfer data in real-time with very low latency, received positive feedback from our customers."

"PubNub's push notification and chat features stand out because of ease of use and very easy integration within our application."

Cons

"Docker on Ubuntu 18.04 LTS is stable enough, but again, it is very old."

"I have not seen a return on investment that I can quantify, and I do not have specific metrics to share regarding fewer employees needed, money saved, or time saved."

"Support on Windows is not so great from Docker, so that is something that they could examine."

"Maybe the daemons need to be improved, as they consume a lot of resources for building and running images."

"The reliability of PubNub is really good, but occasionally we face issues where users complain about messages or push notifications not being delivered within a short period of time, as it occasionally takes longer, which could be due to outages."

"Since PubNub is a paid library, it may not be useful for everyone."

"I believe PubNub can improve in terms of pricing transparency, as I previously mentioned, since that is the only thing I think should be improved because for smaller projects or startups, estimating scaling costs can be challenging."

"Most of the time there are some instances at the load peak hours or sometimes payload is missed by the application or SDK at the SDK level."

"Regarding customer support from PubNub, around six years ago, we did not receive good support."

"I gave PubNub a rating of nine out of ten because of the many features discussed, but I deducted one point because the cost increases with scale."

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Top Industries

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Construction Company

32%

Comms Service Provider

13%

Manufacturing Company

12%

Outsourcing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What is your experience regarding pricing and costs for Docker on Ubuntu 18.04 LTS?

My experience with the pricing, setup cost, and licensing of Docker on Ubuntu 18.04 LTS is very good. I do not see a lot of challenges there, and it definitely provides value for money.

What needs improvement with Docker on Ubuntu 18.04 LTS?

Docker on Ubuntu 18.04 LTS is a very mature product, and I don't think there is a lot of improvement that they need to do on their end. The Docker team is coming up with new features, and integ...

What is your primary use case for Docker on Ubuntu 18.04 LTS?

My main use case for Docker on Ubuntu 18.04 LTS is containerizing our applications so that we are able to test it before deployment. Even the developers do a lot of development level testing before...

What is your experience regarding pricing and costs for PubNub?

The setup cost is very low. Regarding pricing, when the data scales, the pricing increases gradually, but PubNub does not charge much in the initial phase.

What needs improvement with PubNub?

The subscription and the SDK part can be improved. If the client is offline and the application is killed, and the user comes back again, sometimes the subscription to the channel is missed, so tha...

What is your primary use case for PubNub?

We are mostly using PubNub for payload sending and for live chat. We are a mobile-based application with an admin side, so it's a live chat application. Whenever a user comes online or offline ...

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Overview

Docker on Ubuntu 18.04 LTS offers a robust container platform that facilitates seamless application deployment, scaling, and management. It enables developers to create, deploy, and run applications using containers, ensuring consistency across multiple development and release cycles.

Docker on Ubuntu 18.04 LTS combines the flexibility of Docker's containerization with the stability of Ubuntu's long-term support release. This integration allows developers to efficiently manage dependencies and run multiple containerized environments on a single system. It supports microservices architectures, enabling efficient resource usage and easy scaling. By encapsulating applications and their dependencies, it fosters a highly predictable and isolated operational environment that can run on-premises or in the cloud.

What are the key features of Docker on Ubuntu 18.04 LTS?

Containerization: Packages applications and dependencies in portable containers.
Scalability: Effortlessly scales applications across various infrastructures.
Resource Efficiency: Optimizes hardware usage by running multiple containers on a single host.
Version Control: Manages container versions to facilitate efficient updates and rollbacks.

What benefits and ROI should be considered?

Reduced Deployment Time: Accelerates the process of deploying applications and updates.
Cost Savings: Decreases infrastructure costs by enhancing resource utilization.
Enhanced Flexibility: Offers versatile compatibility with cloud and on-premises environments.
Improved Reliability: Ensures consistent performance by isolating applications in containers.

Docker on Ubuntu 18.04 LTS is widely employed in industries like finance and tech startups, where reliability and efficient resource use are crucial. Banks use it to streamline software testing and deployment processes, while startups benefit from its agility in scaling applications and managing resources effectively, which is key in dynamic markets.

Supported Images

PubNub delivers real-time communication solutions that enable seamless data transmission, catering to businesses requiring instant messaging and tracking capabilities. It supports developers with robust SDKs and multiple protocol integrations for scalable and reliable applications.

Specializing in real-time interactivity, PubNub offers a platform designed for scalability and efficiency. It provides a secure and globally distributed network to manage millions of messages per second with low latency. Businesses leverage PubNub for chat applications, live audience engagement, IoT device management, and more. The dynamic infrastructure facilitates rapid development and deployment, making it a preferred choice for developers seeking to enhance connectivity and data flow.

What are PubNub's most important features?

Real-Time Messaging: Instantly delivers messages to ensure immediate communication across platforms.
Presence Detection: Monitors online status, allowing apps to react dynamically to users coming online or going offline.
Stream Controller: Manages data streams independently across numerous channels for enhanced organization.
Data Encryption: Ensures secure data communication through end-to-end encryption for user privacy.
Push Notifications: Provides timely alerts to users, keeping them informed and engaged with minimal delay.

What are the benefits or ROI to consider?

Scalability: Supports rapid growth in user base without performance degradation.
Latency Reduction: Enhances user experience by minimizing delays in data transmission.
Cost Efficiency: Reduces infrastructure costs by pre-built integrations that cut down implementation time.
Security: Protects data integrity, fostering trust with users through robust encryption protocols.
Developer Support: Offers comprehensive documentation and SDKs for simplified development and integration.

In the finance industry, PubNub supports instant transaction alerts and stock trading applications by providing the real-time data processing that is crucial for market activities. E-commerce platforms use PubNub to handle customer queries and facilitate live support. Its implementation in IoT allows for efficient device monitoring and smart city applications. Gaming companies rely on PubNub for multiplayer matchmaking and live event streaming, creating immersive experiences for users worldwide.

Docker on Ubuntu 18.04 LTS vs. PubNub