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PubNub vs VNS3 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

PubNub
Ranking in AWS Marketplace
17th
Average Rating
8.0
Number of Reviews
6
Ranking in other categories
No ranking in other categories
VNS3
Ranking in AWS Marketplace
12th
Average Rating
8.6
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of August 2026, in the AWS Marketplace category, the mindshare of PubNub is 0.2%, down from 0.4% compared to the previous year. The mindshare of VNS3 is 0.3%, down from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
AWS Marketplace Mindshare Distribution
ProductMindshare (%)
VNS30.3%
PubNub0.2%
Other99.5%
AWS Marketplace
 

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.
FA
Analytics Engineer at acquisition.ai
Centralized networking has secured multi-cloud data pipelines and improves analytics reliability
VNS3 could improve in terms of ease of setup, as while it is powerful, initial configuration for complex multi-cloud topologies can still feel quite technical and requires strong networking knowledge. Another potential improvement would be to tighten native integration with modern data stack tools; Airflow, dbt, and cloud data warehouses can benefit from more out-of-the-box connectivity templates. Additionally, the user interface and observability experience could be more modern and intuitive, especially for quickly diagnosing network flows without diving deep into logs. A pain point regarding needed improvements is that troubleshooting can still feel quite network engineering heavy. For data teams in my organization, we often want more pipeline-level visibility, such as directly seeing which ETL jobs or data flows are impacted when a tunnel or route changes. I would also appreciate more automation around policy setup, such as having auto-generated secure network templates for common data architectures such as AWS to Snowflake or on-premises to BigQuery, which would significantly reduce setup time.

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."
"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%."
"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."
"VNS3 has positively impacted my organization by centralizing management and reducing operations overhead in terms of manpower and cost."
"People should try VNS3 as we have not faced any issues with this product and I recommend it to others."
 

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."
"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."
"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."
"VNS3 could benefit from additional features such as the ability to share files through a pre-signed URL, which would be useful for team members to collaborate."
"VNS3 could improve in terms of ease of setup, as while it is powerful, initial configuration for complex multi-cloud topologies can still feel quite technical and requires strong networking knowledge."
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Top Industries

By visitors reading reviews
Construction Company
38%
Manufacturing Company
14%
Comms Service Provider
9%
Outsourcing Company
8%
Construction Company
30%
Comms Service Provider
12%
Healthcare Company
11%
Insurance Company
7%
 

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 VNS3?
The pricing, setup cost, and licensing for VNS3 are reasonable at the current price.
What needs improvement with VNS3?
VNS3 could benefit from additional features such as the ability to share files through a pre-signed URL, which would be useful for team members to collaborate. Implementing pre-signed URL functiona...
What is your primary use case for VNS3?
VNS3 is primarily used for backup and storage purposes, allowing us to maintain our daily logs and store them there. For compliance requirements, we archive files and other storage on VNS3. When we...
 

Overview

Find out what your peers are saying about PubNub vs. VNS3 and other solutions. Updated: June 2026.
909,948 professionals have used our research since 2012.