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PubNub vs Zscaler Software [Private Offer Only] comparison

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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

PubNub
Ranking in AWS Marketplace
19th
Average Rating
8.0
Number of Reviews
6
Ranking in other categories
No ranking in other categories
Zscaler Software [Private O...
Ranking in AWS Marketplace
458th
Average Rating
7.6
Number of Reviews
3
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.
Carlos Snel - PeerSpot reviewer
Executive Director at Aquila ICT Solutions
Zero trust security has provided flexible protection and inspects real-time traffic effectively
From my perspective, I think about Zscaler Software [Private Offer Only], not much could be improved. It is working very well. The only thing is about the POP presence, where you hook into a continent or country. In some countries, South America has some coverage, but not as much as for instance North America or Europe. If you talk with large enterprises or multinationals that are everywhere in the world present, they might need something in Africa. Africa is also a continent where you have more and more enterprises having their subsidiaries there. Africa is not covered very thoroughly, in my opinion. It only has South Africa with points of presence and then Egypt. It is either very up north or very down south. If you are in the middle of Africa, which is an extremely large continent, then you have delays and latencies. That is not very nice. However, that is not only counting for Zscaler Software [Private Offer Only]; this is also for all competitors. I am working with Cato Networks now for more than a year and the same story applies to them. I also know other competitors of Zscaler Software [Private Offer Only] which have even less coverage. It is not something that I think everyone is keen on to expand in Africa because they do not see much traffic. However, if you have multinationals that are operating in Africa, then you cannot offer very good quality service because you have large latency if they are in the middle of Africa. Not even in the middle of Africa; if you talk about under Morocco, then you either connect to Cairo or you connect to Spain. Spain is closest, but if you always have redundancy, and if Spain falls out for whatever reason, even though that is not happening much because the data centers are very stable, then you have an enormous latency going to Cairo. Coming with this to more North Africa, if you talk about Angola and Mozambique in the middle of Africa, then you do not have much choice. You always have a lot of latency there. That is unfortunate. On the technical terms, that is where I stand. I mentioned this before, and it is still the same. I think I talked with you a few years back about this; I think three or four years ago. I mentioned exactly this topic then, and it is still the same. The other thing is, I think in terms of software, they are doing their best. They are buying in firms and buying in solutions, so they are expanding, and that is fine. I would rather say to Zscaler Software [Private Offer Only] to have better customer service because Zscaler Software [Private Offer Only], even with large enterprises and huge companies that I work for, they notice that Zscaler Software [Private Offer Only] service management is different. They are very big and they have less attention to client matters. If that would improve, it would be the best for Zscaler Software [Private Offer Only] to have better customer success managers, but more attention to clients and more direct interface to the deep core of the company for client matters if they have questions or specific things that they do not currently have. If I have something with the client, I have sometimes to escalate to the vice president that I know because I worked with him before, and that is unfortunate. That should not be necessary to go that route. You should have things arranged directly with an account manager or customer success manager of your client if you have problems, or at least have responses saying, this is impossible, we cannot do that because of this, this, this, whatever. At least you should have an answer. I think in the future, everyone in the branch is focusing on AI and quantum computing as a mix. I think on that end, everyone in the domain is working hard to find the best solutions against those two challenges. I think Zscaler Software [Private Offer Only] is doing their best as well there. That is the challenge for the upcoming years, to get the best answers to it. Eventually, they will compete with the same; fight it back with the same power. That means also with quantum computing or specially designed AI to attack back when attackers are attacking. I am not the genius saying that there will be a sort of war game coming up in the future in this domain. However, they are working on it, as all the others are doing, and I think that is absolutely the focus for the coming years because that is where everyone has concern about.

Quotes from Members

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

Pros

"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."
"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 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%."
"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."
"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."
"Zscaler Software is very beneficial for my clients, reducing time by at least more than 50%, improving specific metrics through encrypted threat detection, increasing productivity, and reducing the workload of the analyst so they can respond faster."
"Zscaler Software [Private Offer Only] itself, I think it is pretty good and I only get compliments from clients that are using it after the implementation; they like it."
"I use Zscaler Software [Private Offer Only]'s real-time traffic inspection feature and find it helpful."
 

Cons

"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."
"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."
"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."
"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."
"Since PubNub is a paid library, it may not be useful for everyone."
"Regarding customer support from PubNub, around six years ago, we did not receive good support."
"Regarding Zscaler Software [Private Offer Only], to be honest, we do not like it."
"I would rather say to Zscaler Software [Private Offer Only] to have better customer service because Zscaler Software [Private Offer Only], even with large enterprises and huge companies that I work for, they notice that Zscaler Software [Private Offer Only] service management is different."
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Top Industries

By visitors reading reviews
Construction Company
32%
Comms Service Provider
13%
Manufacturing Company
12%
Outsourcing Company
9%
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 ...
What needs improvement with Zscaler Software [Private Offer Only]?
One area for improvement for Zscaler Software is that they should have their dependency on AI validated and verified. Because if they are a service provider, they are doing a good job, but they hav...
What is your primary use case for Zscaler Software [Private Offer Only]?
Zscaler Software provides cloud security as the use case for my clients.
 

Comparisons

 

Overview

Find out what your peers are saying about PubNub vs. Zscaler Software [Private Offer Only] and other solutions. Updated: October 2026.
921,523 professionals have used our research since 2012.