Try our new research platform with insights from 80,000+ expert users

Hillstone E-Series vs OpenVPN Access Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jul 31, 2025

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

Hillstone E-Series
Ranking in Enterprise Infrastructure VPN
28th
Average Rating
9.2
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
Firewalls (38th), SSL VPN (10th)
OpenVPN Access Server
Ranking in Enterprise Infrastructure VPN
2nd
Average Rating
8.4
Reviews Sentiment
5.9
Number of Reviews
50
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of September 2025, in the Enterprise Infrastructure VPN category, the mindshare of Hillstone E-Series is 0.9%, up from 0.4% compared to the previous year. The mindshare of OpenVPN Access Server is 15.3%, up from 15.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Infrastructure VPN Market Share Distribution
ProductMarket Share (%)
OpenVPN Access Server Enterprise15.3%
Hillstone E-Series0.9%
Other83.8%
Enterprise Infrastructure VPN
 

Featured Reviews

TahirMahmood - PeerSpot reviewer
Offers good features like URL filtering, IPS, and IDS to users
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. When we updated the tool's features, everything became okay. The tool only had some memory-related problems. It took the tool a month to fix the issues.
LAWAL YUSUF - PeerSpot reviewer
Has robust features for encryption and stability
We use the product for secure remote access, including WiFi and IoT device security The product has strong encryption and scalability features. It provides security for private network connections. The product’s connectivity is very slow. It could be faster. We have been using OpenVPN Access…

Quotes from Members

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

Pros

"Stability-wise, I rate the solution a ten out of ten."
"Five out of five ROI."
"This solution has two main features that we find very valuable; a threat-intelligence option, and a web/application filtering option. The technical support team are very good and very quick."
"Working with the Hillstone E-Series has, from a remote perspective, allowed me to give my clients a secure connectivity."
"I am impressed with the application filtering feature."
"The most valuable feature of the solution is the ransomware protection that the tool offers."
"The most valuable features of the Hillstone E-Series are its hardware capacity, innovation, and the throughput that the hardware can take."
"The most valuable feature of the Hillstone E-Series is its user-friendliness."
"I have set the default routes to the VPN server so that all traffic is encrypted."
"​It allows us to give access to our office network in a safe and secure way to users, no matter which computing platform they use. ​"
"The setup is easy."
"Highly configurable. You can create your own custom client installer and can rebrand the server-side program."
"Its most valuable feature is that it is open source."
"OpenVPN Access Server is very stable."
"It allows our employees to work remotely across Mac, Windows, and Linux platforms."
"The features I have found to be most valuable are the levels of encryption I can enact and the compression I can apply to improve throughput."
 

Cons

"I am not sure if this solution offers active directory integration. Adding that feature will definitely be an advantage."
"The tool provides just a general report. It does not provide a granular report. Hence, the tool should work on its reporting feature."
"Support from Hillstone E-Series has a shortcoming that needs improvement."
"Having frequent live webinars on a monthly basis would really help."
"The tool needs to improve its price."
"SSL VPN license cost is not cheap."
"The tool only had some memory-related problems."
"The current usage reporting is very basic."
"There are tasks that require logging onto the server to run commands, which is not intuitive through the UI."
"The upgrade path from older versions was more difficult than we wanted to tackle, so we ran an older version of the software for longer than I wanted. Patching, updating, and migrating to newer versions was a problem for us. That said, we were on a rather old version that I inherited yet it worked rock solid."
"The solution can be more compatible with different operating systems."
"We occasionally have internet issues which affect stability."
"​There was one annoying feature where we had to disable and enable the user. I cannot remember what it was exactly, but I think it was for a password lockout. It would be nice if there was a checkbox, or something, in the web interface to allow you to unlock a user whose password was locked."
"They may have this already, but it would be nice to be able to get more notifications if a site drops unexpectedly."
"I think right now the GUI part of it is locked out behind the pay wall. It could use something that gives it a very basic, minimal, graphic interface for logging in, for the community version. That would probably be a good step forward."
"Needs a better GUI."
 

Pricing and Cost Advice

"The tool's pricing is reasonable. It depends on the model. The product's pricing is around 600 USD. You need to buy a software license to activate the features. You need to pay around 150 USD for that."
"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."
"Hillstone's pricing is economical and neither very high nor very low."
"The cost per year for licensing, and hardware, is approximately $850 for the basic plan."
"OpenVPN is an open-source solution. If the solution is used for personal use it is free. For non-personal use, the solution can be expensive."
"OpenVPN is a free and open-source solution."
"With regard to setup cost, pricing and/or licensing, the simple answer is that you'll need to set aside some time to learn it and experiment with it."
"I would say the product's pricing is a good value. I would recommend to other companies to implement it. I've seen other software, in tandem with the service, to be very expensive."
"The licensing has a fixed pricing."
"OpenVPN Access Server is free and open source."
"The product offers yearly as well as monthly subscription plans. It has moderate pricing."
"OpenVPN Access Server was free for students. I don't know if you have to pay for an advanced version."
report
Use our free recommendation engine to learn which Enterprise Infrastructure VPN solutions are best for your needs.
867,445 professionals have used our research since 2012.
 

Top Industries

By visitors reading reviews
Comms Service Provider
14%
Computer Software Company
10%
Non Profit
8%
Retailer
7%
Computer Software Company
18%
Comms Service Provider
11%
University
7%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise7
Large Enterprise14
 

Questions from the Community

What do you like most about Hillstone E-Series?
The most valuable feature of the Hillstone E-Series is its user-friendliness.
What needs improvement with Hillstone E-Series?
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. Wh...
What is your primary use case for Hillstone E-Series?
I use the solution in my company for site-to-site VPN, SSL VPNs, URL filtering, IPS, IDS and all the other features which are available in the firewall.
How does Fortinet FortiClient compare with Open VPN Access Server?
Fortinet FortiClient is a feature-rich solution that is easy to use and deploy without sacrificing safety and security. It has a very fast connection rate and has a built-in VPN. With this solution...
What do you like most about OpenVPN Access Server?
OpenVPN Access Server is a simple and easy-to-use solution that I can use myself without anybody's help.
 

Also Known As

No data available
OpenVPN
 

Overview

 

Sample Customers

Bank of China Macao, Instituto Tecnológico Bolivariano, Ministry of Labor in San Salvador, FEDCO
Verizon, Amazon, Disney, HP, Microsoft, IBM, Samsung
Find out what your peers are saying about Hillstone E-Series vs. OpenVPN Access Server and other solutions. Updated: July 2025.
867,445 professionals have used our research since 2012.