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ECS-Optimized Windows vs PubNub 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

ECS-Optimized Windows
Ranking in AWS Marketplace
34th
Average Rating
9.0
Number of Reviews
3
Ranking in other categories
No ranking in other categories
PubNub
Ranking in AWS Marketplace
17th
Average Rating
8.0
Number of Reviews
6
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the AWS Marketplace category, the mindshare of ECS-Optimized Windows is 0.2%, up from 0.0% compared to the previous year. The mindshare of PubNub is 0.2%, down from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
AWS Marketplace Mindshare Distribution
ProductMindshare (%)
PubNub0.2%
ECS-Optimized Windows0.2%
Other99.6%
AWS Marketplace
 

Featured Reviews

SC
Student at Rochester Institute of Technology
Preconfigured containers have cut licensing costs and now save our team time with faster booting
ECS-Optimized Windows can improve by giving us new generation instances rather than the old generation's AMD chips or other older technology. It should use the new generation instances, and it should also modernize the storage and the file systems that it is using because those are very old and sometimes problematic. It should also improve or add advanced configurations to the things that we are doing so it can help us and give us more efficiency and productivity in our team. It should give us good analysis, particularly more detailed analysis, with the AWS tools because it is operated by AWS. It is cloud-based, and we are getting it from AWS, so they should also integrate it with AWS better.
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.

Quotes from Members

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

Pros

"ECS-Optimized Windows has positively impacted my organization because I have been using it for proof of concepts and it increases the speed of running them because I do not have to worry about creating my own image."
"After deploying our Windows workloads using ECS-Optimized Windows on AWS, we saw improved reliability and measurable operational efficiencies."
"Our teams can scale at least 40% faster than before, accounting for waiting for it to boot and load everything."
"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."
"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."
"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 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%."
 

Cons

"ECS-Optimized Windows can improve by giving us new generation instances rather than the old generation's AMD chips or other older technology."
"One problem with ECS-Optimized Windows is that the image size is quite large."
"Improvements for ECS-Optimized Windows could include faster Windows patch cycles, a lighter AMI footprint for quicker boot times, better visibility into container-level performance metrics, and improved cost optimization guidance."
"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."
"Regarding customer support from PubNub, around six years ago, we did not receive good support."
"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."
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Top Industries

By visitors reading reviews
Construction Company
41%
Comms Service Provider
11%
Manufacturing Company
10%
Healthcare Company
10%
Construction Company
38%
Manufacturing Company
14%
Comms Service Provider
9%
Outsourcing Company
8%
 

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 ECS-Optimized Windows?
I think ECS includes licenses, so it reduces the stress. Also, the cost is very low, at $0.04 per hour per version of the CPU. We can also get our own license. It follows the BYOL method. I told yo...
What needs improvement with ECS-Optimized Windows?
ECS-Optimized Windows can improve by giving us new generation instances rather than the old generation's AMD chips or other older technology. It should use the new generation instances, and it shou...
What is your primary use case for ECS-Optimized Windows?
My main use case for ECS-Optimized Windows involves utilizing the machines offered by AWS, which means a workload like the image of Windows, exactly. It is provided by AWS with right-sizing for the...
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...
 

Comparisons

 

Overview

Find out what your peers are saying about ECS-Optimized Windows vs. PubNub and other solutions. Updated: June 2026.
909,725 professionals have used our research since 2012.