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AlertSite vs Apache SkyWalking comparison

 

Comparison Buyer's Guide

Executive Summary

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)
Apache SkyWalking
Ranking in Application Performance Monitoring (APM) and Observability
30th
Average Rating
8.6
Reviews Sentiment
5.5
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

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 Apache SkyWalking is 0.7%, up from 0.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Performance Monitoring (APM) and Observability Mindshare Distribution
ProductMindshare (%)
Apache SkyWalking0.7%
AlertSite0.5%
Other98.8%
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.
reviewer2784462 - PeerSpot reviewer
Software Engineer at a tech vendor with 10,001+ employees
Tracing has revealed hybrid bottlenecks and delivers full visibility into critical payment flows
Apache SkyWalking provided full visibility into the black hole because before using it, we could not see what was happening when a request left Amazon EKS and went to our on-premises legacy databases. Apache SkyWalking's distributed tracing correlates these two worlds in a single view, showing us that 40% of the latency was actually happening in the network hop between the cloud and the physical data center, not in the code itself. Second, it exposes hidden architectural flaws. By using the automatic dependency mapping, we discovered that some microservices were stuck in a cyclic dependency which was documented nowhere. This visual evidence allowed us to refactor the logic and immediately increased our throughput by 30%. Apache SkyWalking gave us database-level insight without database access. Through its slow query monitoring, the Java agents captured the exact SQL statements that were hanging during peak sales hours. This meant our developers could fix the exact line of code or index without needing to wait for a DBA to pull logs, reducing our mean time to resolution. There are many features that are useful to mention in this case because we obtained different benefits. Apache SkyWalking automatically drew the topology of the 600 pods where we discovered cyclic dependencies between services that no one had documented before and that were slowing down the system. Another valuable feature is resolving hybrid bottlenecks because we isolated a specific network issue between AWS and the physical data center. Without distributed tracing, infrastructure teams blame Java code and vice versa. Database tuning is also important because thanks to slow query metrics captured by the agent, we identified and rewrote the SQL queries that most impacted performance during sales peaks.

Quotes from Members

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

Pros

"The alerting capabilities 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."
"The alerting capabilities of AlertSite were really helpful."
"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."
"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 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."
"There are custom reports available along with the inbuilt reports."
"Using Apache SkyWalking has had a positive impact on my organization because it has enabled us to identify the causes of various problems more quickly."
"Apache SkyWalking is a very nice tool and an exceptional tool for managing volume and complex architecture on AWS without the prohibitive cost of commercial suites."
 

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."
"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."
"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. Therefore, the false alert needs to be fixed."
"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."
"It is not compatible with all of the product platforms that we use."
"Apache SkyWalking can be improved by responding more quickly to new versions of monitored products."
"Apache SkyWalking can be improved with storage management complexity because with this volume of 50 million traces a day, managing data retention on OpenSearch is critical."
 

Pricing and Cost Advice

"The cost is high."
"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."
Information not available
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Top Industries

By visitors reading reviews
Construction Company
21%
Financial Services Firm
15%
Marketing Services Firm
10%
Performing Arts
8%
Computer Software Company
19%
Financial Services Firm
16%
Retailer
11%
Manufacturing Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Large Enterprise8
No data available
 

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...
What is your experience regarding pricing and costs for Apache SkyWalking?
Our experience with pricing, setup cost, and licensing for Apache SkyWalking is positive since it is free, which was the reason for our decision to use it.
What needs improvement with Apache SkyWalking?
Apache SkyWalking can be improved by responding more quickly to new versions of monitored products, including, for example, taking into account changes in Java class names.
What is your primary use case for Apache SkyWalking?
Our main use case for Apache SkyWalking is for monitoring Java application servers such as Tomcat and WebSphere Liberty.
 

Comparisons

 

Overview

 

Sample Customers

JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics
1. Alibaba 2. Amazon 3. Apple 4. Baidu 5. ByteDance 6. Cisco 7. Dell 8. Google 9. Huawei 10. IBM 11. Intel 12. JPMorgan Chase 13. Klarna 14. LinkedIn 15. Microsoft 16. Netflix 17. Oracle 18. PayPal 19. Pinterest 20. Qualcomm 21. SAP 22. Samsung 23. Spotify 24. Tencent 25. Twitter 26. Uber 27. VMware 28. WeChat 29. Xiaomi 30. Zoom
Find out what your peers are saying about AlertSite vs. Apache SkyWalking and other solutions. Updated: March 2026.
885,311 professionals have used our research since 2012.