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AlertSite vs Splunk AppDynamics comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

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

AlertSite
Ranking in Application Performance Monitoring (APM) and Observability
38th
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
7
Ranking in other categories
API Monitoring Software (3rd)
Splunk AppDynamics
Ranking in Application Performance Monitoring (APM) and Observability
3rd
Average Rating
8.2
Reviews Sentiment
6.6
Number of Reviews
265
Ranking in other categories
IT Infrastructure Monitoring (6th), IT Operations Analytics (2nd), Mobile APM (1st), Container Monitoring (3rd)
 

Mindshare comparison

As of March 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.5%, up from 0.1% compared to the previous year. The mindshare of Splunk AppDynamics is 3.8%, down from 5.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability Mindshare Distribution
ProductMindshare (%)
Splunk AppDynamics3.8%
AlertSite0.5%
Other95.7%
Application Performance Monitoring (APM) and Observability
 

Featured Reviews

IH
Assistant Director at a consultancy with 10,001+ employees
Enterprise-level monitoring facilitates global observability and seamless script creation with intuitive tools
SmartBear, as a vendor, is focusing more on API management and testing rather than monitoring. AlertSite could benefit from more future-focused innovation, especially with competencies in generative AI. Additionally, support from AlertSite is not at an enterprise level since it is not offered 24/7. Outside of critical platform issues, there's no continuous support available.
Shamim Alsharif - PeerSpot reviewer
Performance Test Engineer at TANIM CONSULTING, LLC
Real-time monitoring has improved our banking API performance and supports detailed business transaction analysis
The real-time monitoring is what we can see for anything that is needed in terms of CPU, memory, or the connections or the sessions related. It's real-time monitoring of performance of each of the components, which is what we need and use all the time. It's highly effective, I would say. Infrastructure visibility, transaction monitoring, to check the actual user experience in terms of the response time, MRT and all those things. We do the component monitoring like the API performance and the connections and all those things, but we also do the business process monitoring and business transaction monitoring.

Quotes from Members

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

Pros

"I found multiple features in AlertSite that I like. One is data monitoring history, for example, a history of the blackouts and the data. Sometimes, there's a glitch in the application that AlertSite can capture, and the tool notifies you about that glitch. It also identifies issues that could happen in the future. AlertSite is also a fast tool that you can use to monitor on-premise servers, internal applications, and even global applications. The data is available on a single UI in AlertSite, so there's no need to monitor and click on different applications or URLs. I also love that the tool is quite user-friendly, apart from being fast."
"If there are any issues, it triggers an alert within 30 seconds. When it triggers the alert, we go ahead and check it immediately. The alert is triggered on a real-time basis."
"I highly recommend AlertSite to other users."
"This solution has numerous advantages. It's extremely simple to configure. Either digital monitors or single-URL monitors are simple to configure and build."
"The alerting capabilities of AlertSite were really helpful."
"The return on investment of this solution is well witnessed in our organization because of the integration and various capabilities that it offers to interact with the upstream or downstream systems."
"There are custom reports available along with the inbuilt reports."
"If there are any issues, it triggers an alert within 30 seconds."
"I rate Splunk AppDynamics 10 out of 10."
"What I like the most about Splunk AppDynamics is the end-to-end observability for the application, along with traces."
"Autodiscovery of application topology, based on real user traffic."
"APM tool provides comprehensive information about several elements like performance, errors, and resources."
"The feature that is most valuable to us is the snapshot feature. It allows us to get a snapshot of different SQL scripts that are being executed simultaneously and we can identify everything we need on them."
"Definitely, I would recommend this solution for others who are interested in using it for the alerting mechanism."
"After a major incident, root cause analysis is conducted and, most of the time, we understand what caused the incident and how it can be prevented from happening again."
"The real user monitoring helps us evaluate our customers' real experiences, which is valuable as an eCommerce company."
 

Cons

"In terms of support, it is all based on the cost of the subscription that our company purchased, but it wasn't great, and it could've been much better."
"AlertSite requires improvements related to security, even at the enterprise level."
"I would like the ability to get more data points with regard to some of the unique requirements that we have."
"One area that needs improvement in AlertSite is the slow UI. I'm using the classic UI because it's quite user-friendly, or in human-readable format, but it's a little slow. It takes time to load all the monitors, so if that could be sped up, that would be helpful. The AlertSite support team also needs improvement in terms of availability. Most of the agents in the team aren't available 24 x 7, so if there's something you need to discuss, you need to tell the support team ahead of time to schedule it. Multiple times, when a case comes up during weekends or whenever my team is doing an update, support needs improvement, availability-wise. I use AlertSite for synthetic monitoring, so whatever is available right now is okay, but if I want to request a new feature on a website, currently, the UI refreshes automatically. I would like to have the option on AlertSite to configure that manually. The UI auto-updates every few minutes, so if I can control that manually, that would be helpful."
"I could use a few changes to the user interface."
"Additionally, support from AlertSite is not at an enterprise level since it is not offered 24/7."
"What needs improvement in AlertSite is the documentation, particularly the lack of documentation."
"AlertSite sometimes triggers false alerts or fake alerts, which needs to be rectified. When we see an alert and go ahead and run certain tests on it, the test always passes, however, on the main screen, it shows up as critical."
"The cloud licensing needs to be improved. It's quite pricey."
"The main concern is the extensions and their documentation, particularly for the installation of Azure app services. It is lacking some documentation, which is why we are always with the AppDynamics team for support to get the details."
"This product still has to evolve with the latest technologies for which support is available."
"The user experience is quite confusing. There are too many different development stages. The UI is not very intuitive."
"There are times where we had a couple of outages over the past couple of weeks. Just an hour or two where it was not available."
"My impression of the scalability of the solution is that it is not very scalable. They are not the market leader anymore."
"I would like to see more artificial intelligence and machine learning brought in to monitor the statement and payment sum issues we have."
"In the transaction naming features, for business transactions, we are not always able to tie a business transaction to a real user transaction."
 

Pricing and Cost Advice

"The cost is high."
"My company pays to use AlertSite, but I'm unsure of the exact costs because it depends on how many monitors you have."
"We purchased the license once and had the option of selecting the number of user licenses."
"I give the price a five out of ten."
"It is not a cheap tool, but you also save in manpower to setup because it is easy and fast. At the end of the day, I think the revenue is much better. BUT, they have an awful co-term mode of licensing."
"AppDynamics is more expensive than competitors."
"Take into consideration what you get for specific pricing models and how much it costs to add on things you may need later.​"
"It could be cheaper. It's a little cost prohibitive. There are so many features that also show a lot of value, but it’s not always easy to justify the cost."
"We are looking forward to purchasing the solution on the AWS Marketplace."
"The pricing of the solution is reasonable for what features you receive."
"In terms of pricing, I feel that when you compare the benefits that we get to the price that we paid, it is reasonable."
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Top Industries

By visitors reading reviews
Construction Company
24%
Financial Services Firm
14%
Marketing Services Firm
9%
Transportation Company
8%
Financial Services Firm
24%
Manufacturing Company
8%
Computer Software Company
7%
Government
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Large Enterprise8
By reviewers
Company SizeCount
Small Business56
Midsize Enterprise36
Large Enterprise200
 

Questions from the Community

What is your experience regarding pricing and costs for AlertSite?
I would rate the pricing aspects of AlertSite as nine out of ten, indicating it is good or low-priced.
What needs improvement with AlertSite?
SmartBear, as a vendor, is focusing more on API management and testing rather than monitoring. AlertSite could benefit from more future-focused innovation, especially with competencies in generativ...
What is your primary use case for AlertSite?
I have been working with the AlertSite ( /products/alertsite-reviews ) product since 2019. Within our organization, specifically one service unit at one of the Big Four firms, this product has been...
Any advice about APM solutions?
There are many factors and we know little about your requirements (size of org, technology stack, management systems, the scope of implementation). Our goal was to consolidate APM and infra monitor...
What is your experience regarding pricing and costs for AppDynamics?
I would rate the pricing an eight out of ten. The solution is highly expensive. Our company pays for the solution on a yearly basis, if we don't add new modules or features to the license, we need ...
 

Overview

 

Sample Customers

JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics
Cisco, Sony, Nasdaq, Reserve Bank of New Zealand, Edmunds.com, Puma, Fox News, DirecTV, Pizza Hut, T-Systems, Cornell University, OpenTable, BITMARCK, Green Mountain Power, Care.com, Overstock, Paddy Power, eHarmony, Kraft, The Motley Fool, The Container Store, and more See more customers
Find out what your peers are saying about AlertSite vs. Splunk AppDynamics and other solutions. Updated: March 2026.
885,311 professionals have used our research since 2012.