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Ably 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

Ably
Ranking in AWS Marketplace
11th
Average Rating
9.0
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

Uday Nagpure  - PeerSpot reviewer
Program Manager at Zensar Technologies
Reduced manual work and built reliable real-time collaboration with serverless messaging
I love Ably for its advanced pub/sub messaging capabilities, which help us with messaging Delta Compression, allowing us to send only changes from previous messages instead of entire payloads every time. For example, if I have to say 'hi', instead of sending the whole payload, it only sends the change in the current payload, reducing bandwidth consumption and enabling high-frequency data streaming. This major change has made our clients really happy as they receive notifications and messages without latency. Additionally, if a client goes offline, Ably stores messages in history for up to 72 hours, allowing clients to query history and catch up on missed events, ensuring complete stream continuity. It also supports multi-protocol, using WebSockets and gracefully falling back to server-sent events and long polling as needed, including support for MQTT and IoT devices along with pub/sub control for easy migration.I appreciate the serverless integration that has the integrated native web hook, instantly triggering serverless functions such as AWS Lambda and Azure Function when specific real-time events occur. It also allows Kafka Connector for seamless ingestion of messages from Kafka topics to stream them out to millions of users in milliseconds.
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

"We experience vast improvements across many areas with Ably; when users connect bank accounts, we previously had to poll repeatedly, which is now replaced by Ably's real-time infrastructure that maintains a persistent back-end connection, significantly reducing the need for infrastructure management and API load, resulting in average bank connection display times decreasing from eight to twelve seconds down to one to two seconds, and with persistent back-end connections reducing API calls, we achieve a lower operational load, seeing an impressive reduction of thirty thousand to forty thousand calls monthly."
"Ably has positively impacted our organization by providing a good return on investment by avoiding the labor cost of building and maintaining a custom WebSocket server."
"Ably has a big capacity to stream data all over the world, has higher reliability and a 99.99% uptime, offers robust security guarantees and ease of integration, and saved at least 80% of the cost that would have required more developers and more time for integration testing and development."
"My most-liked feature is its highly reliable real-time messaging capacity."
"Ably has improved our organization by enhancing real-time communication capabilities and providing reliable data delivery."
"Ably's API integration is intuitive; it definitely improved our efficiency, and we saw faster user interaction and around a 20% reduction in latency during peak times, which improved user experience as well."
"I use Zscaler Software [Private Offer Only]'s real-time traffic inspection feature and find it helpful."
"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."
"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."
 

Cons

"Overall, Ably appears strong for managed real-time operations, but could improve areas such as pricing predictability."
"Ably can be improved in several areas."
"It falls just short of a perfect ten only because full twenty-four-hour phone or live chat escalation is heavily gated behind their highest enterprise pricing tiers."
"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."
"Regarding Zscaler Software [Private Offer Only], to be honest, we do not like it."
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Top Industries

By visitors reading reviews
Construction Company
27%
Outsourcing Company
19%
Comms Service Provider
9%
Consumer Goods Company
6%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise3
Large Enterprise9
No data available
 

Questions from the Community

What needs improvement with Ably?
For the use I have made, I didn't see any limit or margin to implement to go higher.
What is your primary use case for Ably?
My main use case for Ably is integrating the Kafka queue with Ably and sending notifications to IoT devices like a smartwatch. After the topic was reached by the message, Ably can fetch it from thi...
What advice do you have for others considering Ably?
I would recommend trying Ably if you have a wider range of IoT device types to deliver notifications. I gave this review a rating of 9.
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

No data available
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Overview

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