AlertSite vs Splunk AppDynamics vs Splunk Observability Cloud comparison

Application Performance Monitoring (APM) and Observability

Download the complete report

Helped 869,202 peers since 2012

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…

Read full review

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.

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

"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."

"I highly recommend AlertSite to other users."

"The alerting capabilities of AlertSite were really helpful."

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

"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 alerting capabilities were really helpful."

"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."

"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 event alerting feature or the trigger system is what I like most about AppDynamics Server Monitoring. Whenever an issue occurs, the tool automatically generates an even trigger that tells engineers in the company to take action, so it's an essential feature of AppDynamics Server Monitoring. Another valuable feature of the tool is end-to-end monitoring, which means if you need to debug, you can go transaction by transaction, where the issue lies, and how it's linked. For example, if it's a low-performance issue, you can look into it more through AppDynamics Server Monitoring in terms of which area takes too much time to execute. You can also see the SQL queries and the kind of query going on through the tool."

"AppDynamics is a good tool that offers excellent out-of-the-box dashboards and application topology."

"The most valuable feature of AppDynamics is Proactive Monitoring and Alerting."

"AppDynamics is scalable."

"It is a stable solution that helps address user issues well."

"The auto-discovery of the logs is the most valuable feature. It requires minimal configuration, we just need to set up on once and it automatically detects through the code."

"What I like most about AppDynamics Server Monitoring is that it's easy to manipulate and easy to implement. All solutions have the same features, but what sets AppDynamics Server Monitoring apart is that it's really quick to implement. AppDynamics Server Monitoring has a great interface. As a developer, it doesn't matter whether it's SolarWinds, Dynatrace, or any APM you're using, but it would matter to the customer. A product must be easy to manipulate or use, for example, AppDynamics Server Monitoring, for the customer, but for developers like my team, there's no pressure, even if a solution requires coding."

"Application Analytics' most valuable features are the real-user monitoring and the agents installed in the software stack on the application server."

More Splunk AppDynamics pros

"I have definitely seen a return on investment with Splunk Observability Cloud, particularly through how fast it has grown and how comfortable other teams are in relying on its outputs for monitoring and observability."

"We haven't really experienced any glitches or bugs."

"The initial setup was straightforward. We didn't find it to be too complex."

"The solution's service map feature allows us to have a holistic overview and to see quickly where the issues are."

"The solution overall is very valuable for me."

"The alerts are the most valuable feature."

"The features are pretty much ready out of the box."

"Splunk APM has helped us to standardize logging and monitoring procedures."

More Splunk Observability Cloud pros

Cons

"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."

"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."

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

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

"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. 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."

"There are many KPIs that are not available in AppDynamics."

"This is an expensive solution."

"There could be some improvement in the constructions of the diagrams, it is too difficult currently."

"The pricing falls within the mid-range category."

"What could be improved in AppDynamics Browser Real-User Monitoring is for the synthetic jobs or synthetic agents, in particular, you can't do a lot of tests with just one agent. You have to install a lot of agents if you want to do more tests, so this is an area for improvement in the solution. Another area for improvement in AppDynamics Browser Real-User Monitoring is that you're only able to see basic metrics in the absence of server or database visibility. For the SaaS version of AppDynamics Browser Real-User Monitoring, my team just downloaded then installed the extension in an application in Azure to see the application on the controller, so if this can be done in the on-premise version of the solution as well, without needing to install the agent on the machine, then it would make AppDynamics Browser Real-User Monitoring better. Currently, the .NET agent consumes the CPU or memory and clients usually raise this issue with my team, so it would be good if the on-premises version doesn't require agent installation on the machine. Another functionality I'd like to see in the next release of AppDynamics Browser Real-User Monitoring is for it to receive updates from the file config without needing to reset IIS because right now when you do a modification in IIS, you have to restart IIS. When you add a service to the agent config, you have to restart IIS. For the product server, it's not possible to reset IIS after you make changes to the config file, so if this could be improved, then it would make AppDynamics Browser Real-User Monitoring a better solution."

"The setup, implementation and use are clumsy and need to be refined."

"The resolution time takes longer than expected."

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

More Splunk AppDynamics cons

"I would rate Splunk technical support at six out of ten. When we have a problem and need to create a case, the response isn't quick."

"The solution's machine learning deployment is hard and should be made user-friendly."

"I would like to see an improvement and some innovation in the customer interface."

"This solution is difficult to configure and the instructions are complex."

"The user interface of Splunk Observability Cloud needs a lot of work."

"There are some predefined metrics.......we may want to create customized metrics."

"In future updates, I would like to see more predefined monitoring query solutions, which could be more effective."

"A lot of customers had a hard time effectively searching within the data in Splunk. There is a learning curve from searches to indexes and using all the macros that we have created. It is a little difficult for somebody who has not used it quite a bit and does not have a lot of practice with it, but the AI features that we have been hearing about through Splunk will make it a lot easier for us to use human language to search this data. That is big. That is pretty powerful, and that will help a lot with our customers."

More Splunk Observability Cloud cons

Pricing and Cost Advice

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

"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."

"AppDynamics Browser Real-User Monitoring does have licensing cost associated with it."

"The licensing cost is fairly high"

"The license fee for Application Analytics is in the range of 2.5 million over three years, with extra fees for service contingencies."

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

"There is an annual cost for the use of this solution."

"If one is expensive and ten is low price, I rate the product price as seven out of ten."

"The solution is highly expensive"

"The pricing model for AppDynamics could be better. You have to subscribe to a yearly or a three-year licensing, which isn't very handy. The solution is one of the most expensive in the market today."

More Splunk AppDynamics pricing and cost advice

"Splunk APM is expensive."

"Splunk Observability Cloud is expensive."

"Splunk's infrastructure monitoring costs can be high because our billing is based on data volume measured in terabytes, rather than the number of devices being monitored."

"Splunk APM is a very cost-efficient solution."

"The solution's pricing is costly."

"This is an expensive solution."

"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 solution's pricing is competitive. I rate the solution's pricing a seven out of ten. The price of the solution could be cheaper."

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.

See recommendations

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