AlertSite vs Splunk AppDynamics vs Splunk Observability Cloud comparison

Application Performance Monitoring (APM) and Observability

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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 October 2025, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.2%, up from 0.2% compared to the previous year. The mindshare of Splunk AppDynamics is 4.1%, down from 5.8% compared to the previous year. The mindshare of Splunk Observability Cloud is 2.0%, up from 1.2% 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	4.1%
Splunk Observability Cloud	2.0%
AlertSite	0.2%
Other	93.7%

Application Performance Monitoring (APM) and Observability

Featured Reviews

SandeepTarwe

Team lead at Tata Consultancy

Alerting capabilities have enabled timely escalation and resolution of issues

In AlertSite, I was monitoring the kiosks and servers for JetBlue Airlines. The servers would trigger alerts if there were any outages or issues with any of the kiosks, servers, or the ticketing tool. I monitored these alerts and escalated them to the concerned team to rectify them at the earliest…

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Gyanesh Rahatekar

Back office at Reliance Industries Ltd

Application performance management and error resolution improved with data-driven insights

Dynatrace has multiple functions compared to Splunk AppDynamics, so Splunk AppDynamics should add those functions, which are not available as of now. Dynatrace has a universal agent that collects all information related to their CI, and if one CI has multiple languages, then there is no need to instrument multiple agents. However, Splunk AppDynamics requires multiple agents; if I have one server with multiple applications in different languages, then I need to instrument different agents for each application. Splunk AppDynamics should work with Dynatrace with one single universal agent that works with all application languages, eliminating the need for multiple implementations.

Read full review

Taiwo Ige

IT Operations Engineer at ABC Supply Co. Inc.

Alerting improves incident response across teams and enables faster awareness before customer impact

Splunk Observability Cloud could be improved in terms of integrations with more technical add-ons, such as Zoom. Although they have one with Zoom, it's not available in the cloud, so having that feature would be beneficial. Essentially, Splunk should continue expanding to create easier ways to ingest logs from different products. The out-of-the-box customizable dashboards in Splunk Observability Cloud are very effective in showcasing IT performance to business leaders. However, there are aspects that could be improved, such as linking dashboards to one another. While IT leaders may not drill down, it's crucial to create levels of dashboards for technical users to find root causes, making it effective for stakeholders.

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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

"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."

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

"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."

"I highly recommend AlertSite to other users."

"The alerting capabilities were really helpful."

"The platform is reliable in identifying the core system issues."

"The real-time feature provides me with insights into what's happening."

"The product is easy to install, it took about half an hour. The use and the configurations are simple as well."

"The solution is very, very stable. We haven't faced any bugs or glitches on the system."

"It is easy to gain visibility into complex environments with AppDynamics. It has the ability to combine operation information of the environment and business information with strong business IQ support."

"In AppDynamics, everywhere I go, there's some sort of grouping and aggregation function, or there's some sort of timeline that lets me zero in more quickly on the traces that I need. They go to more pains to aggregate and bubble the important ones to the top. That removes a lot of manual work."

"Provides good overall application performance and transaction errors."

"The release management capabilities are great."

More Splunk AppDynamics pros

"This solution is very quick to deploy as it is a SaaS solution and integrates with tools like ServiceNow."

"Splunk Observability Cloud has enhanced our operational performance and our company's resilience, ultimately contributing to improved customer satisfaction."

"The features of Splunk Observability Cloud that I prefer the most are its all-encompassing licensing model, which is comparatively better than others in the market."

"Initially, before Splunk, we had a long time to resolve issues; now, with Splunk Observability Cloud, we will be able to solve them quickly and know exactly where the issue is."

"The product retains a lot of log data for subsequent analysis."

"The tool is efficient in collecting, monitoring and evaluating logs."

"Detectors are a powerful feature."

"Splunk Infrastructure Monitoring provided our customers with visibility into their overall infrastructure."

More Splunk Observability Cloud pros

Cons

"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."

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

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

"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 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."

"There are too many installers available for this solution."

"AppDynamics is new to the cloud and could improve its cloud services, they are following a monolithic monitoring approach."

"The UI could use a little help."

"They could align the product strategy to evolve as a complete solution."

"I would like to see more artificial intelligence and machine learning brought in to monitor the statement and payment sum issues we have."

"The tool is expensive."

"AppDynamics Server Monitoring lacks investment in new technologies like Kubernetes and cloud solutions."

"Their agents sometimes claim to be very lightweight, especially with databases, but they are very heavy. They can take up more compute than the actual work that we need to do."

More Splunk AppDynamics cons

"The solution's stability is an area that has room for improvement. It needs to provide constant stability to its users."

"There is room for improvement in the alerting system, which is complicated and has less documentation available."

"We currently lack log analysis capabilities in Splunk APM."

"The main improvement I would suggest for Splunk Observability Cloud would be offering the ability to implement custom apps, specifically allowing Python scripts that Splunk Cloud could host."

"To improve Splunk Observability Cloud, we need more applications to be included in the observability so that more applications can have agents to monitor them and bring that information to the cloud."

"They can get more integration with a few more products. They can also update some of the dashboards that are in there now."

"We still use Splunk Enterprise licensing. A lot of the newer features go into Splunk Cloud before Enterprise. We're not looking to switch our licensing over, so we're falling behind on the newer features."

"Technical support is good but could be improved, particularly concerning the time taken for ticket resolution."

More Splunk Observability Cloud 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."

"The cost is high."

"We purchased the license once and had the option of selecting the number of user licenses."

"The product is a bit expensive compared to other tools."

"AppDynamics Database Monitoring requires a license for database monitoring and other features, while Dynatrace provides monitoring and other features out of the box without additional costs. Sometimes this makes it more challenging to pitch AppDynamics Database Monitoring to customers, especially because you need to buy a separate license. As an implementer, I have yet to learn about the pricing for AppDynamics Database Monitoring. Pricing is taken care of by the sales team."

"As compared to other applications, its price is moderate. Its price is neither very high nor very low."

"In terms of pricing, I feel that when you compare the benefits that we get to the price that we paid, it is reasonable."

"This solution is not the cheapest but it works well. You will end up doing more work with a cheaper solution than if you just spent the extra money on a better solution like this one."

"The licensing scheme is very complex. They need to make it easier."

"It is a more expensive APM among the competitors, which is fine because it also does a lot more on the auto-detection and the AI side... It is not a cheap product. None of them are. The price is fair, but I could use it on more projects if they had a lower price."

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

More Splunk AppDynamics pricing and cost advice

"Splunk has been fairly expensive, but it has been predictable."

"This is an expensive solution."

"It is expensive."

"The price of Splunk APM is less than some of its competitors."

"Splunk APM is expensive."

"I am not in that circle, but we are currently licensing based on our queries. That is working out for us. Previously, it was by volume of data, and now, we can store as much data as we want."

"The pricing is based on several factors, including the scale of deployment."

"Splunk Infrastructure Monitoring is an expensive solution."

More Splunk Observability Cloud pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which Application Performance Monitoring (APM) and Observability solutions are best for your needs.

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869,202 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

No data available

Financial Services Firm

28%

Computer Software Company

13%

Manufacturing Company

Government

Financial Services Firm

15%

Computer Software Company

12%

Retailer

Manufacturing Company

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	188

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	10
Large Enterprise	43

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 benefi...

What is your primary use case for AlertSite?

I have been working with the AlertSite ( /products/alertsite-reviews ) product since 2019. Within our organization, s...

Any advice about APM solutions?

There are many factors and we know little about your requirements (size of org, technology stack, management systems,...

APM tools for a Managed Service Provider - Dynatrace vs. AppDynamics vs. Aternity vs. Ruxit

Hi Avi! It's great to see your thorough approach to selecting an APM package for your MSP company. Considering your f...

What do you like most about AppDynamics?

The solution saves time and cost.

What do you like most about SignalFx?

The most valuable feature is dashboard creation.

What needs improvement with SignalFx?

Regarding dashboard customization, while Splunk has many dashboard building options, customers sometimes need to crea...

What is your primary use case for SignalFx?

The solution involves observability in general, such as Application Performance Monitoring, and generally addresses d...

Broadcom DX Application Performance Management vs AlertSite

Comparisons

Dynatrace vs AlertSite

Compared 54% of the time

Compared 46% of the time

More AlertSite Competitors

Dynatrace vs Splunk AppDynamics

Compared 14% of the time

Datadog vs Splunk AppDynamics

Compared 8% of the time

Splunk Enterprise Security vs Splunk AppDynamics

Compared 8% of the time

New Relic vs Splunk AppDynamics

Compared 8% of the time

Grafana vs Splunk AppDynamics

Compared 4% of the time

More Splunk AppDynamics Competitors

Sentry vs Splunk Observability Cloud

Compared 7% of the time

Observe vs Splunk Observability Cloud

Compared 6% of the time

SigNoz vs Splunk Observability Cloud

Compared 5% of the time

Cribl vs Splunk Observability Cloud

Compared 5% of the time

New Relic vs Splunk Observability Cloud

Compared 3% of the time

More Splunk Observability Cloud Competitors

Product Reports

Download AlertSite product report

AlertSite

October 2025

Splunk AppDynamics

Download Splunk AppDynamics product report

Splunk Observability Cloud

Download Splunk Observability Cloud product report

Also Known As

No data available

Splunk Infrastructure Monitoring, Splunk Real User Monitoring (RUM), Splunk Synthetic Monitoring

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 enhances application performance monitoring with advanced diagnostics and real-time insights, offering seamless end-to-end transaction tracking and infrastructure visibility.

AppDynamics provides critical tools for businesses to analyze application behavior and performance. Through innovative features like transaction snapshot analysis and adaptable dashboards, users can quickly identify and address issues, ensuring high levels of system uptime and efficiency. It is designed to support complex environments including Kubernetes and AWS, enhancing user experience by detecting performance issues early. Despite needing improvements in network monitoring and integration, it remains a robust option for tracking application health.

What are the key features of AppDynamics?

Real-time Performance Monitoring: Offers immediate insights into application behavior.
Business Transaction Tracking: Tracks transactions from start to finish for bottleneck identification.
JVM Memory Monitoring: Provides detailed JVM metrics and memory use information.
Deep-dive Diagnostics: Enables in-depth analysis of code and stack traces.
Adaptable Dashboards: Customizable views for better data interpretation.

How does AppDynamics benefit users?

Improved Incident Resolution: Faster problem detection and solution implementation.
Enhanced Application Performance: Real-time monitoring optimizes system operations.
Comprehensive Visibility: Provides a full view of application infrastructure.
Informed Decision Making: Detailed analytics guide performance improvements.
Customer Satisfaction: Enhances user experience through faster issue resolutions.

In industries like financial services and e-commerce, AppDynamics facilitates performance tracking across distributed systems, optimizing infrastructure to meet consumer demands. It excels in environments needing precise transaction monitoring and is pivotal in delivering high value and satisfaction.

Splunk

Splunk Observability Cloud offers sophisticated log searching, data integration, and customizable dashboards. With rapid deployment and ease of use, this cloud service enhances monitoring capabilities across IT infrastructures for comprehensive end-to-end visibility.

Focused on enhancing performance management and security, Splunk Observability Cloud supports environments through its data visualization and analysis tools. Users appreciate its robust application performance monitoring and troubleshooting insights. However, improvements in integrations, interface customization, scalability, and automation are needed. Users find value in its capabilities for infrastructure and network monitoring, as well as log analytics, albeit cost considerations and better documentation are desired. Enhancements in real-time monitoring and network protection are also noted as areas for development.

What are the key features?

Log Searching: Efficiently search and analyze logs from various sources.
Data Integration: Seamlessly integrate with multiple environments.
Dashboard Customization: Tailor dashboards to specific monitoring needs.
Monitoring Capabilities: Provides comprehensive insights into application performance.
Security Features: Analyze and address security threats across systems.
Visualization Tools: Enhance data analysis and system performance optimization.

Why consider this for ROI?

Comprehensive Visibility: Gain complete insights into IT infrastructure.
Performance Optimization: Improve overall system performance and efficiency.
Rapid Deployment: Quick setup to meet organization demands swiftly.
Enhanced Security: Strengthen security measures through detailed analytics.

In industries, Splunk Observability Cloud is implemented for security management by analyzing logs from detection systems, offering real-time alerts and troubleshooting for cloud-native applications. It is leveraged for machine data analysis, improving infrastructure visibility and supporting network and application performance management efforts.

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

Sunrun, Yelp, Onshape, Tapjoy, Symphony Commerce, Chairish, Clever, Grovo, Bazaar Voice, Zenefits, Avalara

Application Performance Monitoring (APM) and Observability