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A10 Thunder TPS vs Fortinet FortiAppSec Cloud 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

A10 Thunder TPS
Ranking in Distributed Denial-of-Service (DDoS) Protection
21st
Average Rating
8.6
Reviews Sentiment
7.0
Number of Reviews
15
Ranking in other categories
No ranking in other categories
Fortinet FortiAppSec Cloud
Ranking in Distributed Denial-of-Service (DDoS) Protection
18th
Average Rating
9.0
Reviews Sentiment
6.6
Number of Reviews
2
Ranking in other categories
CDN (11th), Web Application Firewall (WAF) (26th), API Security (17th), Dynamic Application Security Testing (DAST) (9th)
 

Mindshare comparison

As of August 2026, in the Distributed Denial-of-Service (DDoS) Protection category, the mindshare of A10 Thunder TPS is 1.5%, down from 1.9% compared to the previous year. The mindshare of Fortinet FortiAppSec Cloud is 1.3%. It is calculated based on PeerSpot user engagement data.
Distributed Denial-of-Service (DDoS) Protection Mindshare Distribution
ProductMindshare (%)
Fortinet FortiAppSec Cloud1.3%
A10 Thunder TPS1.5%
Other97.2%
Distributed Denial-of-Service (DDoS) Protection
 

Featured Reviews

reviewer1126782 - PeerSpot reviewer
Information Technology Security Engineer at a tech services company with 11-50 employees
Management console adds value and technical support delivers timely solutions
I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create. For example, I set an NTP server, and after some clicks, a message appeared stating 'setup is incorrect'. It asked for a VLAN even though no VLANs were created. We had to find workarounds for issues like A10 blocking necessary traffic, sometimes leading to decreased security, because it was the simplest way to deal with them. This was a real issue. A more flexible policy for demo licenses would also be helpful.
OE
CIO at a financial services firm with 51-200 employees
Advanced threat protection has reduced financial risk and improves application security visibility
The issue I have with Fortinet FortiAppSec Cloud is that the real-time analysis is not robust; I am unable to see all the logs of everything that happened, including what is passive. It only logs when there are suspicious activities, which means if something is not considered suspicious by Fortinet, I will not see the full picture. That is a disadvantage because it will not log unless it identifies an IOC or attacks, meaning I cannot see traffic information in a way that helps build more intelligence. The biggest issue I have with Fortinet FortiAppSec Cloud is that the logging is not as extensive as I would prefer. For instance, if there was an issue two days ago and Fortinet FortiAppSec Cloud did not mark it as a concern, I will not see any information about that, making it challenging to explain to customers if their request did not reach us. It hampers visibility from an API perspective. They need to enhance monitoring and logging to be more extensive and capture even passive activities. The AI integration in Fortinet FortiAppSec Cloud is still new. The generative models are good, but there is much work left to improve. It is not as intelligent as it could be; thus, enhancements around the AI co-assistant would be beneficial. Additionally, logging and monitoring need improvement as I can capture traffic and investigate offline on my Fortinet firewall, including full traffic view, but Fortinet FortiAppSec Cloud currently focuses only on security concerns, which does not give the complete picture.

Quotes from Members

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

Pros

"I had a rather positive experience with A10 Networks Support Service."
"Based on previous equipment that we had, it's amazing that this device can do what it can do in a 1U form factor. The devices that we have right now have never gone over capacity and we've actually mitigated some pretty large attacks."
"They give us the ability to configure many features for DDoS. There are many items that we can use."
"The solution's support is one of the coolest things about the product. I"
"The solution is easy to use and implement in terms of operations."
"Due to the availability and power of these devices, we've been able to ramp off our upstream cloud-scrubbing provider and handle all attacks on our own."
"The product's initial setup phase is very simple."
"The GUI is very use-friendly, you can configure it through CLI or GUI so they give you an option to choose, and it's a good solution in terms of the appliance itself because it's very light compared to other brands that offer DDoS solutions."
"My favorite Fortinet device is the FortiGate next-gen firewall itself; it is a complete suite with intrusion prevention, intrusion detection, anti-malware, anti-DDoS, and SD-WAN functionalities."
"We have seen a reduction in incidents and a good return on investment from Fortinet FortiAppSec Cloud, with our return on investment around 60%."
 

Cons

"We currently do not use the solution's machine-learning-powered Zero-day Automated Protection because of an issue with it."
"We have had some issues with implementation. So, it is the only area that needs improvement."
"If there's one aspect of A10 that needs improvement it would be the training."
"The problem here is when you buy another box from A10, they want to put Thunder TPS to run, and it works okay, after which we cannot block it for another solution to be used, which is a problem for me where improvements are needed."
"I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create."
"I rate Thunder TPS seven out of 10 for scalability."
"The solution is a little expensive."
"Its documentation could be better."
"The issue I have with Fortinet FortiAppSec Cloud is that the real-time analysis is not robust; I am unable to see all the logs of everything that happened, including what is passive."
"Real-time traffic analysis has posed an issue for us because we did not see logs for legitimate traffic."
 

Pricing and Cost Advice

"We may need to pay fifty percent more if we purchase other solutions. For the payments made to A10 Thunder TPS, we have received three-year support."
"We had a customer who was down for six hours and the loss of revenue for him was three times the price he was paying for us per year. The customer just said, "I don't care about paying you because on only one attack I saved money. It's three times better than losing money.""
"Pricing was much higher with Arbor (APS) for the same type of solution."
"We did a price survey, and compared to other solutions, A10 Thunder TPS wasn't cheap."
"The tool is expensive. If one is low price and ten is expensive, I rate the tool's price as a ten."
"Pricing is very reasonable."
"The financials are always a challenge with this type of technology. That's not really a product-functionality thing but it's the area where we push A10 the most."
Information not available
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Top Industries

By visitors reading reviews
Comms Service Provider
32%
Financial Services Firm
11%
Construction Company
8%
Outsourcing Company
6%
Construction Company
22%
Financial Services Firm
11%
Healthcare Company
11%
Manufacturing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise4
Large Enterprise6
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for A10 Thunder TPS?
I have not seen specific prices, like $10,000 or $20,000. A frustrating aspect is the lack of demo versions. The vendor insists on commercial licenses despite requests for demo licenses. The global...
What needs improvement with A10 Thunder TPS?
I had issues with the user interface because, when putting settings up, the system asked me for strange things like virtual local networks that I didn't create. For example, I set an NTP server, an...
What is your primary use case for A10 Thunder TPS?
Currently, I have a test setup. A10 Thunder TPS ( /products/a10-thunder-tps-reviews ) works in a chain with a Check Point firewall and a Juniper MX router. Recently, we had a presentation from a ve...
What needs improvement with Fortinet FortiAppSec Cloud?
Real-time traffic analysis has posed an issue for us because we did not see logs for legitimate traffic. A separate license is needed for Fortinet FortiAppSec Cloud to send logs to other cloud serv...
What is your primary use case for Fortinet FortiAppSec Cloud?
Fortinet FortiAppSec Cloud is used as a WAF solution.
What advice do you have for others considering Fortinet FortiAppSec Cloud?
We are a customer running Fortinet FortiAppSec Cloud for both our organization and one for our customer. Three users use Fortinet FortiAppSec Cloud. As administrators, it is easy to maintain. Using...
 

Overview

 

Sample Customers

DDoS defense solution trusted for more than 200 service providers, online gaming, and enterprises including; Bungie, Comcast, KDDI Corporation, Leaseweb, Microsoft Azure, NTT Docomo, Softbank, Turkcell Superonline, Verizon and more.
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Find out what your peers are saying about A10 Thunder TPS vs. Fortinet FortiAppSec Cloud and other solutions. Updated: August 2026.
909,725 professionals have used our research since 2012.