AlertSite vs Splunk AppDynamics comparison

SmartBear and Splunk are both solutions in the Application Performance Monitoring (APM) and Observability category. SmartBear is ranked #39 with an average rating of 8.0, while Splunk is ranked #3 with an average rating of 8.1. SmartBear holds a 0.4% mindshare in APM, compared to Splunk’s 3.7% mindshare. Additionally, 100% of SmartBear users are willing to recommend the solution, compared to 91% of Splunk users who would recommend it.

AlertSite

Read 7 AlertSite reviews

875 Views
770 Comparison Views

100% willing to recommend

Splunk AppDynamics

Read 260 Splunk AppDynamics reviews

15,142 Views
11,357 Comparison Views

91% willing to recommend

AlertSite

Splunk AppDynamics

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Executive SummaryUpdated on Nov 23, 2025

AlertSite and Splunk AppDynamics are competing products in application performance management. Splunk AppDynamics seems to have the upper hand with its advanced features and substantial long-term value.

Features: AlertSite offers robust monitoring capabilities, real-time alerts, and a user-friendly dashboard, focusing on ease of use. Splunk AppDynamics provides comprehensive analytics, integration capabilities, and a detailed application performance view, highlighted by its ability to monitor transactions thoroughly and offer deep insights into application flow.

Room for Improvement: AlertSite could enhance its analytics depth and integration options to cater to complex environments. It also needs to advance its automated support systems. Splunk AppDynamics might improve its deployment simplicity, initial setup time, and reduce the learning curve associated with its extensive feature set, which can overwhelm new users.

Ease of Deployment and Customer Service: AlertSite offers straightforward deployment options and excellent customer service for personalized support, while Splunk AppDynamics supports flexible deployment environments but relies more on extensive documentation and automated processes for customer assistance.

Pricing and ROI: AlertSite provides a cost-effective solution, offering a quicker ROI for businesses that focus on budget efficiency. Splunk AppDynamics involves higher upfront costs but is remarked for delivering significant value in the long-term through its comprehensive features and insights into performance.

To learn more, read our detailed AlertSite vs. Splunk AppDynamics Report (Updated: February 2026).

Buyer's Guide

AlertSite vs. Splunk AppDynamics

February 2026

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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:

Categories and Ranking

AlertSite

Ranking in Application Performance Monitoring (APM) and Observability

39th

Average Rating

8.0

Reviews Sentiment

7.6

Number of Reviews

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

6.7

Number of Reviews

260

Ranking in other categories

IT Infrastructure Monitoring (6th), IT Operations Analytics (2nd), Mobile APM (1st), Container Monitoring (3rd)

Mindshare comparison

As of February 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.4%, up from 0.1% compared to the previous year. The mindshare of Splunk AppDynamics is 3.7%, down from 5.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Application Performance Monitoring (APM) and Observability Market Share Distribution
Product	Market Share (%)
Splunk AppDynamics	3.7%
AlertSite	0.4%
Other	95.9%

Application Performance Monitoring (APM) and Observability

Featured Reviews

IsaacSamuel

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.

Read full review

DevendraKumar1

Technology lead at Infosys

Has enabled us to detect issues instantly through alerts and monitor every service from a single dashboard

Splunk requires significantly more improvements compared to Splunk AppDynamics, specifically regarding the licensing aspect. Splunk renews licenses every six months, which is inconvenient. It would be better to have a one-year license to avoid needing to update keys constantly, which can only occur on weekends, making it a burdensome task. Although Splunk is better for certain use cases, Splunk AppDynamics is broader in functionality. Specifically, I want enhancements related to creating dashboards not only for logs or minor services but also for configuration levels, allowing us to check configurations immediately without manually opening the entire code when exceptions arise—a feature I wish to see improved in Splunk, although it may not be necessary for Splunk AppDynamics.

Read full review

Quotes from Members

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

Pros

"There are custom reports available along with the inbuilt reports."

"The alerting capabilities were really helpful."

"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."

"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."

"The best feature of AlertSite is that it shows you a visual graph and also sends you notifications about errors, so you get immediate notifications about errors which means that your support team can start taking steps and more quickly make sure the site is up and that customer experience isn't interrupted in terms of using your system and your products. AlertSite is a very good tool. It's user-friendly, and you can see everything on the dashboard. Configuring it is also easy."

"The alerting capabilities of AlertSite were really helpful."

"The most valuable feature is the detailed statistics, like the consumer count, for the ActiveMQ server."

"The most valuable feature of AppDynamics is that we can see all query times. If a particular query is taking too much time, we can alert it."

"It allows us to configure health rules so that we can, based on our own experience, determine when an application is behaving incorrectly."

"It is a stable solution. Stability-wise, I don't see any problems in the solution...The solution's technical support was good."

"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."

"The solution's most valuable features are its end-user monitoring and AI functionalities."

"The initial setup is simple."

"Data monitoring is the most valuable feature."

More Splunk AppDynamics pros

Cons

"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. Therefore, the false alert needs to be fixed."

"I would like the ability to get more data points with regard to some of the unique requirements that we have."

"What needs improvement in AlertSite is the documentation, particularly the lack of documentation. If there's a specific activity you want to do, you can't even find information on how to do it, so you have to contact the AlertSite support team to assist you, and only then would the issue be resolved. At the moment, it's not easy to find or get full documentation on how to deal with different issues. You always have to go back to AlertSite support and get help. The documentation for AlertSite could be improved and it's what I'd like to see in the next release of the tool because at the moment, the documentation isn't complete, so you'll have to contact support, but contacting support isn't an issue because the team responds to you quickly."

"Additionally, support from AlertSite is not at an enterprise level since it is not offered 24/7."

"It is not compatible with all of the product platforms that we use."

"I could use a few changes to the user interface."

"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."

"This feature needs to be properly described to a client, and then the client needs to have a use case. There are some clients which do not need it and some clients who do. It is not for everyone and is dependant on their use case."

"In the next release, I would like to see the configuration of the data and more support for new applications. It should support new languages."

"I would like to see a better way to automate actions based on the events generated by the tool."

"If AppDynamics could do a one-agent function with their actual monitoring effectiveness, it will be the greatest tool."

"The QA and test environment need improvement."

"AppDynamics is agent-based, so some customers are reluctant to install the agents in all their production environments. It would be helpful if they had an agentless version. It covers applications on the server, but the solution is weak on the network side. The agent is not deployed on the network components, so it cannot provide complete information about issues on the network layer."

"The solution could improve the server size for AppDynamics to include middleware products, which is doesn't yet cover. If they add middleware for sophisticated sites, AppDynamics would be the global choice."

"We have had downtime, which has been the result of config, application, or cord issues."

More Splunk AppDynamics cons

Pricing and Cost Advice

"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."

"The cost is high."

"There is no standard license instead, the license is adapted to the organization's requirements."

"The cost is prohibitive."

"There is a license for the solution and we paid approximately $2,000. There is also an additional cost above the standard license which cost us approximately $3,000."

"There is an annual cost to use this solution. The licensing model could be improved by making it more cost-effective."

"The pricing needs to come down."

"Purchasing the product through the AWS Marketplace was good."

"For those who appreciate the value and had issues with the visibility of the performance of their applications, then the pricing is good. For somebody who does not need it, it can be pricey, but overall, it is worth the money which it costs."

"It could be a bit lower, but looking at the scalability, functionality, and other things, you can understand why AppDynamics is so expensive as compared to some of the cheaper products that don't have that full single pane of glass they've got. Dynatrace has got three different elements that you need to log into just to get a full view, which is not so good, and because of that, it is a bit cheaper."

More Splunk AppDynamics pricing and cost advice

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

25%

Computer Software Company

10%

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Large Enterprise	8

By reviewers
Company Size	Count
Small Business	55
Midsize Enterprise	36
Large Enterprise	195

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.

See all answers

What needs improvement with AlertSite?

See all answers

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...

See all answers

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...

See all answers

What do you like most about AppDynamics?

The solution saves time and cost.

See all answers

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 ...

See all answers

Comparisons

Dynatrace vs AlertSite

Compared 17% of the time

Catchpoint vs AlertSite

Compared 13% of the time

Broadcom DX Application Performance Management vs AlertSite

Compared 12% of the time

New Relic vs AlertSite

Compared 12% of the time

Postman Enterprise vs AlertSite

Compared 12% of the time

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Dynatrace vs Splunk AppDynamics

Compared 10% of the time

New Relic vs Splunk AppDynamics

Compared 7% of the time

Datadog vs Splunk AppDynamics

Compared 6% of the time

Splunk Enterprise Security vs Splunk AppDynamics

Compared 5% of the time

PRTG Network Monitor vs Splunk AppDynamics

Compared 3% of the time

More Splunk AppDynamics Competitors

Product Reports

Buyer's Guide

AlertSite

February 2026

Download AlertSite product report

Buyer's Guide

Splunk AppDynamics

January 2026

Download Splunk AppDynamics product report

Overview

SmartBear's AlertSite is an application performance management and system monitoring software. AlertSite is an early warning system that users can rely on to monitor their websites, web apps, and APIs from any physical location as well as from within their private networks. It offers real-time alerting with root-cause analytics and robust reporting. AlertSite allows you to proactively monitor from an independent network of over 350 monitoring nodes worldwide.

Here are AlertSite’s 6 use cases:

Monitor web: AlertSite monitors beyond availability to detect performance anomalies and notify the appropriate people when deviations occur, whether it's online apps or websites.
Monitor APIs: Check to see that your internal, external, and third-party APIs are working properly, returning the correct content, and performing as expected.
Monitor apps: With nearly any action, monitor your online sites and applications using actual browsers, just like a consumer. There is no need for scripting.
Monitor mobile: Monitor your mobile-friendly websites, native mobile apps, carrier-based nodes, and network speeds with real devices (3G, 4G LTE).
Monitor SLAs: Make sure you're meeting service-level agreements' requirements. SLA requirements are monitored and reported on by AlertSite.
Monitor cloud: Monitor your cloud-based applications to improve mobility. AlertSite monitors your apps across public and private clouds, giving you complete visibility into their status.

AlertSite Features

AlertSite has many valuable key features. Some of the most useful ones include:

Enables a comprehensive view of UI and API performance.
Monitoring coverage from 350+ worldwide nodes and private networks.
Integrates with DevOps and Ops tool stacks.
Displays availability and performance data that assist in determining the root cause of performance problems.
With AlertSite's Single Sign-On (SSO) support, you can assist your authentication procedures.
Free training and assistance. AlertSite’s responsive team is always there to assist you, from the initial rollout through day-to-day support.
Eliminates the stress of false alerts using these key features:
- Tracks the performance of your apps, APIs, and websites.
- Sets up monitor and alarm schedules, as well as blackout periods and retry choices.
- Sets alert thresholds that are both static and dynamic.
- Calculates the number of failures needed to set off an alarm.
- After the first failure, retries logic.
- Based on error code, sends an alert to recipients and group routing.
- Tests from over 85 different locations across the world, with internal and external monitoring.
- Defines assertions and validations.
- Integrates with PagerDuty, Slack, Splunk, VictorOps, and more.

Easy configuration with help from these key features:
- DejaClick is an intuitive, seamless plug-in for documenting web transactions and user journeys.
- Use the point-and-click script creation for website, web, and mobile monitor scripts.
- Benefit from using native API monitor creation.
- Scripts for functional tests can be reused.
- Automate monitor creation by using Swagger Specs or OpenAPI Specification files.

SmartBear

Splunk AppDynamics is a comprehensive performance monitoring tool providing end-to-end transaction tracking, real-time monitoring, and a user-friendly interface. With AI-powered features, it enhances operational efficiency and resilience by offering insights into user interactions and infrastructure issues.

Splunk AppDynamics excels in monitoring applications and infrastructure performance, offering extensive support across environments like AWS and cloud. It aids in application performance monitoring, end-user experience, database analysis, and proactive incident detection. Supporting Java, .NET, and other technologies, it provides real-time insights into application health, resource utilization, and transaction tracking, ensuring reliable user experiences. Challenges remain in UI complexity, agent-based architecture, integration with diverse environments, and documentation clarity. Its licensing model is costly, and customer support may be slow. Performance concerns exist in historical data granularity and network visibility.

What features make Splunk AppDynamics stand out?

End-to-End Transaction Tracking: Monitors entire user transactions for comprehensive visibility.
Real-Time Monitoring: Provides instant insights into system performance.
AI-Powered Anomaly Detection: Identifies anomalies with advanced machine learning techniques.
Code-Level Troubleshooting: Diagnoses issues at the code level for precise fixes.
Business Transaction Visibility: Offers detailed views into transaction flow across all system layers.

What benefits and ROI can users expect from Splunk AppDynamics?

Improved Application Performance: Enhances system efficiency and reliability.
Operational Efficiency: Streamlines monitoring and issue resolution processes.
Enhanced Business Resilience: Strengthens the ability to adapt to performance challenges.
Seamless User Experiences: Ensures uninterrupted service and user satisfaction.

Organizations in industries like finance and healthcare implement Splunk AppDynamics to monitor critical applications and infrastructure. Its capabilities in transaction tracking and AI-driven insights are crucial for maintaining system reliability, supporting technologies such as Java and .NET, and ensuring optimal resource utilization.

Splunk

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

Buyer's Guide

AlertSite vs. Splunk AppDynamics

February 2026

Free Report: AlertSite vs. Splunk AppDynamics

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