F5 BIG-IP Local Traffic Manager (LTM) vs Kemp LoadMaster vs NetScaler comparison

F5 BIG-IP Local Traffic Man...

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Executive Summary

We performed a comparison between F5 BIG-IP Local Traffic Manager (LTM), Kemp LoadMaster, and NetScaler based on real PeerSpot user reviews.

Find out what your peers are saying about NetScaler, F5, Microsoft and others in Application Delivery Controllers (ADC).

To learn more, read our detailed Application Delivery Controllers (ADC) Report (Updated: July 2025).

Application Delivery Controllers (ADC)

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Review summaries and opinions

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

Mindshare comparison

As of July 2025, in the Application Delivery Controllers (ADC) category, the mindshare of F5 BIG-IP Local Traffic Manager (LTM) is 15.3%, up from 15.4% compared to the previous year. The mindshare of Kemp LoadMaster is 7.3%, up from 7.0% compared to the previous year. The mindshare of NetScaler is 14.6%, down from 16.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Delivery Controllers (ADC)

Featured Reviews

Bonieber Orofeo

IT Manager at Chong Hua Hospital

Identifying compromised traffic and securing data has been a significant advantage

One of the most beneficial features of F5 BIG-IP Local Traffic Manager (LTM) ( /products/f5-big-ip-local-traffic-manager-ltm-reviews ) is its ability to identify compromised traffic and its capabilities in authentication. Additionally, the security aspect of it provides a significant advantage as it helps us secure our data, which is a major investment and benefit for us. Before using this system, we had difficulties in storing our data and managing the traffic that comes in and out.

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PeterForster

Senior Consultant at a tech services company with 51-200 employees

A highly stable and scalable load-balancing software that offers great technical support

My company is really happy with Kemp LoadMaster as a product. My company is also happy with the support we receive from Kemp LoadMaster. I want Kemp LoadMaster to provide users with better reporting capabilities in relation to TCP packets. In general, the connections that are present in the system require improvement. Feature-wise, Kemp LoadMaster has everything that our company's customers require. Kemp LoadMaster also has features that have supported our company's past projects.

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DEMİRHAN ÇAVUŞOĞLU

Cloud Consultant at Migros Ticaret A.Ş.

A tool for centralized management including inventory and sales tracking

Citrix ADM has the ability to implement policies to tighten security. For instance, you can restrict access to your network from outsiders or lack necessary security measures such as antivirus programs. Additionally, there's the Delivery Controller, which allows for comprehensive monitoring and management tasks such as remote restarts, maintenance, and registration. Another essential component is the Director, which provides detailed insights into sessions, including identifying session failures, connection issues, user lockouts, etc. It presents a list of problems to address, enabling you to click on them and resolve them efficiently.

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Quotes from Members

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

Pros

"I was able to simply and quickly set up the WAF rules and security, and also set up easily complex policies and rules which gave me some great features to redirect."

"The solution's stability is pretty good."

"There is a lot of documentation available."

"There were a lot of good features. The most beneficial for maintaining server health included the algorithms for the virtual IP, which segment traffic between servers, authentication profiles, and many other things."

"Routing and load balancing are its most valuable features."

"Our experience has been very good, in terms of performance, and securing our application infrastructure."

"It is an easy way to build application policies (graphical)."

"BIG-IP can do anything. It's like a Swiss Army knife."

More F5 BIG-IP Local Traffic Manager (LTM) pros

"The feature I find most valuable is load balancing with different algorithms."

"One of the most valuable features I like is the ability to block specific cipher suites like RC4, and older protocols like SSL 3.0."

"The base feature of Kemp LoadMaster load balancing ticks all the boxes but the most valuable features would be the security features Intrusion Prevention (IPS) and Web Application Firewall (WAF)."

"The most beneficial function of using the ADC is to ensure this resiliency."

"LoadMaster is easy to deploy and understand."

"Persistence is very valuable. This holds the connection information of the source and that connection is important to RDP and our APO calls. The connection has to be persisted to the original source to operate properly. We also use the subsections for sub-services to create services inside our services for our API resources, this is most awesome. We would not be able to do this without Kemp and offer this type of sub-service to route based on an API instance. It routes the traffic properly based on the sub-service type."

"It has been functional. We don't have any outages."

"It is an easy-to-use, user-friendly interface, and you can set up a new VIP in a couple of minutes."

More Kemp LoadMaster pros

"Provides resiliency for applications that reside on servers, as well as connectivity to remote applications."

"I like app flows and custom flows. They integrate with multiple flows."

"Most of the functions are user-friendly and great."

"NetScaler Gateway: Why? Availability/Security: We delivered more than 200 applications thru Xenapp. This feature give us the possibility to deliver the applications anywhere. Currently, 30% of access is made through our NetScaler Gateway (Internet connections)."

"I would say the rewriting and redirection functions are must-have's for us."

"The NetScaler appliance has provided a lot of customers with greater high availability for their enterprise applications within a single site and across multiple locations."

"We use the product for load balancing and as a reverse proxy solution."

"The solution can be configured very granularly and has good control over security."

More NetScaler pros

Cons

"I would like to see F-5 implement a regular routing like in other Linux-based devices. When we try and integrate in some complex networks, we have to use some additional routing scenarios from a Layer 3 perspective, then we have some problems. It would be great if this were fixed somehow."

"Security enhancement should be more user friendly."

"Needs to provide a visual interface to follow a customer's activity (from client to BIG-IP to SNAT IP to the chosen server, then back). Today, we are still performing packet captures."

"This is a very expensive solution."

"I think the logging could be improved."

"There are issues with F5 BIG-IP but they are minor issues not affecting production and services. Sometimes the operations and the facility systems fail. However, there is an alert action from the windows. An ordeal for the manager."

"There is a challenge in Pakistan. This is when there is a hardware failure. Sometimes, it takes more time to get a replacement because it is sent out from the U.S. or some other regional outpost. Thus, it takes two to three days to receive a replacement."

"It requires a particular skill or training before being able to manage it."

More F5 BIG-IP Local Traffic Manager (LTM) cons

"If there is anything that needs to be updated, the GUI can get a refresh to make it look more like 2020, although it is just a cosmetic change."

"The configuration of the basic services is pretty straight forward but for more complex solutions, there needs to be better documentation or knowledge base articles."

"UI is very basic and unattractive."

"So far, the only hitch we have run into is that would have been nice to have an easier method to add allow/whitelist entries into the Access Control lists for virtual services."

"They were still in the process of development, and for example, we set it up in a cluster. So it was one logistical unit built out of two physical devices. And the expected behavior, which I know from other devices, will be formed into a logic cluster. It's that you configure one unit. Then you bring the second unit into this cluster with the already configured primary unit. So the secondary box pulls all the configured ones from its neighbor, does everything automatically, and then synchronizes with this primary neighbor. And then it works, like, one logical unit. And this didn't work with the Kemp's initially, where they caused a lot of issues when building up a cluster, so there were some specials on how to set this up. When we built or set them up for the first time and the months afterward with no new software releases, there were a couple of problems, but in the end, they worked fine. So, they developed a lot and learned from what they've responded to, what we responded to them, and what needs fixing."

"I want to have the ability to pull a particular server. The DevOps portion was challenging for me, like if I needed to redirect from one IP to another URL. I needed to look that up, and the knowledge base is not well organized. When I look for information about Kemp on the Internet, I don't find many articles or something like that."

"I definitely think that the WAF can be improved."

"In the web interface, there are a lot of settings in the different menus and it would be helpful if there were an interactive help system or tooltips to help the administrators find and configure the right settings."

More Kemp LoadMaster cons

"It was challenging explaining to customers that it's no longer NetScaler but ADC, and now it's not just ADC but also the rebranding from NetScaler."

"If one device or switch fails, the failover to another device is not seamless which is painful."

"Some features of Citrix ADM are available on the cloud, which could really be helpful if they were available on an on-premise version."

"The only thing customers told me that could be improved is that they would like to be able to purchase and receive the products in one box, rather than two boxes. This is something related to marketing, though."

"The solution should be able to scale more effectively than it does."

"When a new version comes out, sometimes, my existing configuration gets wiped out. They should work on this so that my existing configuration doesn't get impacted with an upgrade to a newer version. There could also reduce frequent firmware upgrade activities and have a stable version so that once we upgrade it, we don't have to upgrade it for two to three years."

"I will try to migrate all the tools to the cloud because there is more lab and more VPN scalability available in the cloud. It is not available on-premises."

"I would like to see them make it easier to do some of the more complex things. For example, a web re-direct requires two pieces to it. You have two ports and when people want to go to a web page, they just type in the webpage that on the backend it will redirect them to a secure link. The initial setup of that is cumbersome because you have to do it twice. There are things that can be replicated. The IP address, for example, is the same. This change would go a long way. Don't make me do it twice and don't make me have to read tons of documentation to figure out how to do it. Ease of configuration for some of the more complex processes would be a good improvement."

More NetScaler cons

Pricing and Cost Advice

"It is a bit expensive product. Kemp Loadmaster is much cheaper than F5. Its licensing is on a yearly basis. It can be for one year or three years."

"The licensing pricing seems relatively easy enough to get your head around. I would advise anyone to ensure that you have a conversation with an F5 consultant before purchasing, as you would with most products."

"If your IT budget is good, go for it."

"I use a yearly subscription, which is the most expensive one now compared to its competitors."

"They are expensive."

"I am a fan of using AWS natively. It is much cheaper."

"It could be priced a little less, especially on the virtual side. It gets a bit expensive, but you get what you pay."

"The licensing model of F5 BIG-IP LTM is highly complex. The operation cost of the solution is high. The overall cost is high."

More F5 BIG-IP Local Traffic Manager (LTM) pricing and cost advice

"The price of the solution is cheap."

"The setup cost and pricing plan is reasonable and will ultimately give you a worthy return."

"The Kemp LoadMaster is a tremendous value."

"It has a very attractive ratio of price/performance."

"It has a great price for the solution they offer."

"The price is lower than other options."

"This product has good value and features for the money."

"Less expensive than Citrix."

More Kemp LoadMaster pricing and cost advice

"Our licensing fees including technical support are approximately $3,500 USD."

"I rate the pricing an eight out of ten since it is expensive."

"It's not for startups or SOHO."

"Citrix NetScaler's pricing is slightly above average but not overly expensive. I would consider F5 BIG IP to be the most expensive, Citrix NetScaler to be the second most expensive, and then Kemp Load Balancer to be the third."

"Citrix ADM costs us approximately $5000 per month."

"For the specific use case that my customers primarily engage with, I would give the pricing a rating of seven out of ten."

"The tool is cheap."

"It is very pricey, but we get it. If you need the best, money shouldn't be a problem."

More NetScaler pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Application Delivery Controllers (ADC) solutions are best for your needs.

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Top Industries

By visitors reading reviews

Financial Services Firm

16%

Computer Software Company

13%

Government

Manufacturing Company

Computer Software Company

16%

Educational Organization

12%

Financial Services Firm

Government

Computer Software Company

15%

Financial Services Firm

11%

Government

Manufacturing Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What needs improvement with F5 BIG-IP?

The price needs improvement as it is quite costly.

What is your primary use case for F5 BIG-IP?

We're using F5 BIG-IP Local Traffic Manager (LTM) ( /products/f5-big-ip-local-traffic-manager-ltm-reviews ) for our a...

What do you like most about F5 BIG-IP Local Traffic Manager (LTM)?

The solution is robust and reliable.

What do you like most about Kemp LoadMaster?

Scalability-wise, I rate the solution a ten out of ten...I rate the technical support a ten out of ten...The initial ...

What is your experience regarding pricing and costs for Kemp LoadMaster?

LoadMaster is cheaper than some other solutions. It has a perpetual license, so it's a one-time cost.

What needs improvement with Kemp LoadMaster?

There are some challenges with updates on certain models that don't have a few features. The support team often takes...

What do you like most about Citrix ADC?

The most valuable feature for us is the application firewalling in Citrix NetScaler, ensuring only valid traffic ente...

What is your experience regarding pricing and costs for Citrix ADC?

After deployment, Citrix Netscaler shifted to a subscription-based license scheme for support, which is slightly more...

What needs improvement with Citrix ADC?

Citrix NetScaler is a robust product, but mastering it requires significant learning and training due to its complexi...

Fortinet FortiADC vs F5 BIG-IP Local Traffic Manager (LTM)

Comparisons

Compared 18% of the time

Microsoft Azure Application Gateway vs F5 BIG-IP Local Traffic Manager (LTM)

Compared 8% of the time

VMWare Avi Load Balancer vs F5 BIG-IP Local Traffic Manager (LTM)

Compared 8% of the time

HAProxy vs F5 BIG-IP Local Traffic Manager (LTM)

Compared 7% of the time

Loadbalancer.org vs F5 BIG-IP Local Traffic Manager (LTM)

Compared 3% of the time

More F5 BIG-IP Local Traffic Manager (LTM) Competitors

HAProxy vs Kemp LoadMaster

Compared 19% of the time

Fortinet FortiADC vs Kemp LoadMaster

Compared 15% of the time

NGINX Plus vs Kemp LoadMaster

Compared 12% of the time

Microsoft Azure Application Gateway vs Kemp LoadMaster

Compared 8% of the time

Loadbalancer.org vs Kemp LoadMaster

Compared 7% of the time

More Kemp LoadMaster Competitors

HAProxy vs NetScaler

Compared 10% of the time

Microsoft Azure Application Gateway vs NetScaler

Compared 10% of the time

Fortinet FortiADC vs NetScaler

Compared 9% of the time

NGINX Plus vs NetScaler

Compared 7% of the time

Amazon Elastic Load Balancing vs NetScaler

Compared 3% of the time

More NetScaler Competitors

Product Reports

F5 BIG-IP Local Traffic Manager (LTM)

Download F5 BIG-IP Local Traffic Manager (LTM) product report

F5 BIG-IP Local Traffic Manager (LTM) report

Kemp LoadMaster

Download Kemp LoadMaster product report

Download NetScaler product report

Also Known As

F5 BIG-IP, BIG-IP LTM, F5 ASM, Viprion, F5 BIG-IP Virtual Edition , Crescendo Networks Application Delivery Controller, BIG IP

LoadMaster Load Balancer

Citrix ADC, Citrix NetScaler VPX, NetScaler Console, NetScaler Web Application Firewall

Overview

F5 BIG-IP LTM optimizes the speed and reliability of your apps via both network and application layers. Using real-time protocol and traffic management decisions based on app and server and connection management conditions, and TCP and content offloading, BIG-IP LTM dramatically improves application and infrastructure responsiveness. BIG-IP LTM's architecture includes protocol awareness to control traffic for the most important applications. BIG-IP LTM tracks the dynamic performance levels of servers and delivers SSL performance and visibility for inbound and outbound traffic, to protect the user experience by encrypting everything from the client to the server.

BIG-IP LTM provides enterprise-class Application Delivery Controller (ADC). You get granular layer 7 control, SSL offloading and acceleration capabilities, and advanced scaling technologies that deliver performance and reliability on-demand. The highly optimized TCP/IP stack combines TCP/IP techniques and improvements in the latest RFCs with extensions to minimize the effect of congestion and packet loss and recovery. Independent testing tools and customer experiences show LTM's TCP stack delivers up to a 2x performance gain for users and a 4x increase in bandwidth efficiency.

Kemp LoadMaster is a powerful load balancing solution that also serves as a web application firewall. Its primary use case is load balancing and application load balancing, making it an ideal solution for organizations that must distribute traffic across multiple servers. Kemp's integration with an active directory for ESP usage, hosting/deployment of SSL certificates, and pricing are some of its most valuable features.

Using Kemp has helped organizations mitigate cross-scripting vulnerabilities, cookie-related issues, and content security policy issues. It has also allowed them to handle everything with Kemp instead of working on each application individually.

Progress Software

One platform for a consistent application delivery and security experience because nobody has time to learn multiple systems to manage ADC deployments. NetScaler is built with a single code base using a software-based architecture, so no matter which ADC form factor you choose — hardware, virtual machine, bare metal, or container — the behavior will be the same.

Sample Customers

Riken, TransUnion, Tepco Systems Administration, Daejeon University, G&T Bank, Danamon, CyberAgent Inc.

Kent County Council, KEMP, SMA Solar Technology AG, RT Player , Victrix (Quebec, Canada), Texas A&M, Macmillan Cancer Support, Cisco, Austin Bank

ABB Schweiz, Aer Lingus, AIDS Healthcare Foundation, Amnet Technology Solutions, Aramex International, Ascenty, Atos, Autodesk

Application Delivery Controllers (ADC)