AlertSite vs Alluvio AppResponse comparison

SmartBear and Riverbed are both solutions in the Application Performance Monitoring (APM) and Observability category. SmartBear is ranked #36 with an average rating of 8.0, while Riverbed is ranked #46 with an average rating of 8.0. SmartBear holds a 0.4% mindshare in APM, compared to Riverbed’s 0.5% mindshare. Additionally, 100% of SmartBear users are willing to recommend the solution, compared to 93% of Riverbed users who would recommend it.

AlertSite

Read 7 AlertSite reviews

759 Views
668 Comparison Views

100% willing to recommend

Alluvio AppResponse

Read 17 Alluvio AppResponse reviews

1,735 Views
781 Comparison Views

93% willing to recommend

AlertSite

Alluvio AppResponse

Comparison Buyer's Guide

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Executive SummaryUpdated on Jul 24, 2024

AlertSite and Alluvio AppResponse are prominent monitoring and application performance management tools. Alluvio AppResponse seems to have the upper hand due to its advanced features, despite a higher cost.

What features are offered by AlertSite in comparison to Alluvio AppResponse?

AlertSite offers a comprehensive dashboard, real-time monitoring capabilities, and ease of use. Alluvio AppResponse provides in-depth network performance analytics, detailed performance insights, and extensive reporting capabilities.

What areas of improvement can be found in AlertSite in comparison to Alluvio AppResponse?

AlertSite could enhance its reporting accuracy, alert precision, and integrations with other tools. Alluvio AppResponse needs improvements in its integration process, user interface complexity, and initial setup time.

How is the ease of deployment and customer service of AlertSite in comparison to Alluvio AppResponse?

AlertSite offers a straightforward deployment model and receives positive feedback for customer service. Alluvio AppResponse is more complex to deploy but is supported by highly responsive customer service.

What setup costs and ROI can be seen with AlertSite in comparison to Alluvio AppResponse?

AlertSite is generally seen as cost-effective with noticeable ROI. Alluvio AppResponse has a higher initial setup cost, but its extensive features offer long-term value, justifying the pricing for many users.

To learn more, read our detailed AlertSite vs. Alluvio AppResponse Report (Updated: December 2025).

Buyer's Guide

AlertSite vs. Alluvio AppResponse

December 2025

Download the complete report

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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

36th

Average Rating

8.0

Reviews Sentiment

7.6

Number of Reviews

Ranking in other categories

API Monitoring Software (3rd)

Alluvio AppResponse

Ranking in Application Performance Monitoring (APM) and Observability

46th

Average Rating

8.6

Reviews Sentiment

7.6

Number of Reviews

Ranking in other categories

Network Monitoring Software (54th)

Mindshare comparison

As of January 2026, in the Application Performance Monitoring (APM) and Observability category, the mindshare of AlertSite is 0.4%, up from 0.2% compared to the previous year. The mindshare of Alluvio AppResponse is 0.5%, up from 0.2% 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 (%)
AlertSite	0.4%
Alluvio AppResponse	0.5%
Other	99.1%

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

Satyam Kumar

Senior Technical Engineer at a consultancy with 1-10 employees

Identifies and analyzes performance issues quickly using in-built AI and ML

With Alluvio AppResponse, there is an in-built analytical analysis with AI and ML, which identifies and provides data such as the number of TCP retransmits, web access time, total connection time out, total connections established, and server-side errors. The RTCC response time composition chart is crucial because it helps pinpoint the issue's origin, whether from the server, network, or application side. It's a superb product when compared to SolarWinds SAM, which is agent-based, while Alluvio AppResponse captures all traffic from the core switch.

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 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."

"The alerting capabilities were really helpful."

"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 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."

"AppResponse is a total solution that gives you end-to-end visibility into applications at all levels, from Layer 1 to Layer 7. We can trace all those sections: physical, IP, transport, presentation, application, etc. It gives us the full picture."

"Riverbed's product is a superb product."

"When it comes to the ability to scale up the product, this is suitable for small medium and large environments,"

"We really like the scalability capabilities."

"I have found the AppResponse, which is a packet capture solution, very good. It gives you the ability to drill down back in time. You've got all the packets there. You can troubleshoot it later, not immediately. It's very interesting."

"It's a stable product. Riverbed has invested a significant amount of research and development into it, so it's a solid tool overall."

"Ability to see end to end user, application, server, and network response time and throughput data."

"It provides us with complete visibility of every packet."

More Alluvio AppResponse pros

Cons

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

"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."

"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."

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

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

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

"They need to better integrate with products and solutions from different vendors."

"Alluvio AppResponse should improve its ability to expand across multiple operating systems."

"The AI features should be addressed in respect of the analysis and intelligence that must be supported and delivered in the tool to predigest the large amounts of data."

"Technical support needs to be more responsive."

"Integration between NPM and APM solutions would improve efficiency. There is no agent on the server site related to AppResponse."

"Need to bring back the NetFlow module for AppResponse."

"The recent changes in corporate structure may have caused some decrease in support quality."

"The initial setup is straightforward, but you have to know a little about the product. It's not for everybody to just plug and play. If you know how the solution is implemented then it is straightforward."

More Alluvio AppResponse 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."

"The licensing model is expensive compared to its competitors, but the service it gives to your business, and the data quality, means that it's worth it."

"The price is a little bit high, especially because we have to pay an import tax."

"The solution is no more expensive than other products."

"It is costly for small and medium businesses."

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Top Industries

By visitors reading reviews

No data available

Financial Services Firm

15%

Performing Arts

15%

Manufacturing Company

Media 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	7
Midsize Enterprise	4
Large Enterprise	10

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...

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What is your experience regarding pricing and costs for Riverbed SteelCentral AppResponse?

The pricing of Riverbed Alluvio AppResponse is really high. Very few customers buy Riverbed because many do not have the sufficient budget. Its pricing is comparatively higher than SolarWinds. Rive...

See all answers

What needs improvement with Riverbed SteelCentral AppResponse?

The reporting models need improvement as most of the time, we have to customize the reports manually. Additionally, a feature similar to SolarWinds AppStack, which provides a holistic view of the i...

See all answers

What is your primary use case for Riverbed SteelCentral AppResponse?

We are the partner of Riverbed. Once any customer buys the Riverbed product, we deploy and configure it to meet their use cases. Alluvio AppResponse can identify if a page or an application is slow...

See all answers

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Product Reports

Buyer's Guide

AlertSite

January 2026

Download AlertSite product report

Buyer's Guide

Application Performance Monitoring (APM) and Observability

January 2026

Download Alluvio AppResponse product report

Also Known As

No data available

Riverbed AppResponse, OPNET SteelCentral AppResponse, ACE Live, OPNET, AppResponse Xpert

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

Alluvio AppResponse provides fast packet capture and storage that feeds intelligent network and application analysis with fast troubleshooting workflows to speed problem diagnosis and resolution. AppResponse delivers full stack application analysis—from packets to web pages - enabling you observe all network and application interactions as they cross the wire, whether they are encrypted or not. Using powerful, flexible network and application analytics and workflows, AppResponse speeds problem diagnosis and resolution, helping you get to answers fast

Riverbed

Sample Customers

JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics

N11.com, OneMain Financial, China Bank, Halkbank, Kaust

Buyer's Guide

AlertSite vs. Alluvio AppResponse

December 2025

Free Report: AlertSite vs. Alluvio AppResponse

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