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PubNub vs Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages comparison

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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

PubNub
Ranking in AWS Marketplace
18th
Average Rating
8.0
Number of Reviews
6
Ranking in other categories
No ranking in other categories
Ubuntu 20 (Ubuntu 20.04 LTS...
Ranking in AWS Marketplace
488th
Average Rating
9.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Featured Reviews

Kirtishil Patil - PeerSpot reviewer
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.
Azam S M - PeerSpot reviewer
Infrastructure Lead at Danat Fz LLC
Container workloads have run reliably and now support secure, customizable services
It is important that Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages has long-term support for mission-critical operations, because there are applications which need to be updated if we are going with a newer version. I do not see areas for improvement in Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages because it satisfies our requirements. Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages is 99% stable and reliable. It is not our primary OS; we are using it for specific services for containers and specific services. We have also introduced AI into the platform. For example, if an updated version of Redis is available, that updated version will not be available in Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages repository. In that case, we have to pull it directly from the Redis servers and install it manually for it to work for us. I give this product a rating of 9.

Quotes from Members

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

Pros

"The speed and efficiency of PubNub, which helps transfer data in real-time with very low latency, received positive feedback from our customers."
"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's push notification and chat features stand out because of ease of use and very easy integration within our application."
"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."
"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."
"Regarding value for money, organizations that provide services typically use Ubuntu as their primary OS, which is secure, compatible, and developer-friendly, allowing our DevOps team to utilize it effectively for daily deployments and configurations."
"Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages is easy to learn, which is my favorite part about it, as the commands are very easy."
 

Cons

"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."
"Since PubNub is a paid library, it may not be useful for everyone."
"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."
"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."
"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."
"Regarding customer support from PubNub, around six years ago, we did not receive good support."
"There are a few applications that are not easy to deploy on Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages, so we need to have some workarounds for that."
"Despite mentioning many advantages, an area for improvement in Ubuntu is its application support, as it lacks many GUI-friendly applications that are available on Windows or macOS, which limits usability for tasks requiring specific software."
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Top Industries

By visitors reading reviews
Construction Company
35%
Manufacturing Company
13%
Comms Service Provider
12%
Outsourcing Company
10%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
No data available
 

Questions from the Community

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 or s...
What is your experience regarding pricing and costs for Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages?
We are going with the open source version and are not purchasing Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages.
What needs improvement with Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages?
There are a few applications that are not easy to deploy on Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages, so we need to have some workarounds for that. For example, certain appli...
 

Comparisons

 

Overview

Find out what your peers are saying about PubNub vs. Ubuntu 20 (Ubuntu 20.04 LTS) (ARM) | Support by SupportedImages and other solutions. Updated: September 2026.
915,383 professionals have used our research since 2012.