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AlertSite vs Postman Enterprise comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 2, 2025

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 API Monitoring Software
3rd
Average Rating
8.0
Reviews Sentiment
7.6
Number of Reviews
7
Ranking in other categories
Application Performance Monitoring (APM) and Observability (36th)
Postman Enterprise
Ranking in API Monitoring Software
1st
Average Rating
8.2
Reviews Sentiment
6.8
Number of Reviews
65
Ranking in other categories
API Management (8th), API Testing Tools (1st), AI Software Development (6th)
 

Mindshare comparison

As of January 2026, in the API Monitoring Software category, the mindshare of AlertSite is 10.6%, down from 11.5% compared to the previous year. The mindshare of Postman Enterprise is 39.4%, down from 42.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
API Monitoring Software Market Share Distribution
ProductMarket Share (%)
Postman Enterprise39.4%
AlertSite10.6%
Other50.0%
API Monitoring Software
 

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.
TS
API Integration Engineer at Airbnb
Automated testing optimizes API workflow and collaboration
Since I am using the free tier, one improvement would be to increase the number of requests you can send in a short time period. Currently, if I send 200-300 requests in a short period, Postman Enterprise requires a 30-second wait before sending another bundle of requests unless you upgrade to a higher tier. Secondly, Postman Enterprise sometimes takes several minutes to load the whole workspace. With 2,000-3,000 requests in a workspace, it can take a minute or two to load all requests. When creating a new workspace and moving requests between workspaces, depending on internet speed, it can take a longer period to copy those requests or workspace from one place to another.

Quotes from Members

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

Pros

"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 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."
"I highly recommend AlertSite to other users."
"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."
"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."
"There are custom reports available along with the inbuilt reports."
"The alerting capabilities of AlertSite were really helpful."
"Postman is useful for API testing."
"We can also submit requests multiple times and it allows us to capture the response each time by using utility scripts."
"The initial setup is simple."
"It's user-friendly. Anybody can learn it within five to seven minutes."
"Postman is one of the easiest tools; I have not seen anybody complaining because it's just one Google search away."
"One of the most valuable aspects of Postman is scalability. We can scale the collection and for the multiple repositories of the collections."
"Postman helps us to automate the API testing in the team."
"It helps me to test APIs independently. It also supports hosting."
 

Cons

"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."
"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."
"I would like the ability to get more data points with regard to some of the unique requirements that we have."
"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 could use a few changes to the user interface."
"The product lacks a good console."
"Integration should be improved with our continuation system because we use Azure DevOps separately."
"Postman quality assurance could improve when doing tests."
"I don't think there is any need for comments on improvements."
"There is no support for the testing of the SOAP APIs."
"Something that could be better is the inclusion of another type of test, for example, end-to-end tests."
"The tool needs to have a reporting feature."
"Postman is a bit more of a complex tool, making it an area where improvements can be made."
 

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."
"I rate the price of Postman a four out of five."
"We are currently using the free version, but we have plans to buy a license."
"Its price is moderate as compared to other competitors. The version that we are using is not open source, so it is not free."
"We use the open-source version. They introduced a new licensing model where your company must subscribe to their services if you're using it for business purposes. However, I think they charge too much if you're only using the basic features. It limits what your organization can do if you're not a paying customer."
"Postman is a free service."
"The solution has a licensing fee which might be prohibitive."
"This tool is open-source and free to download and use."
"I use the tool's free version."
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Top Industries

By visitors reading reviews
No data available
Financial Services Firm
19%
Computer Software Company
14%
Insurance Company
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Large Enterprise8
By reviewers
Company SizeCount
Small Business17
Midsize Enterprise9
Large Enterprise41
 

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...
How does Postman compare with Apache JMeter?
Postman lets you easily define variables, which then get updated automatically. This is a huge time-saver and makes processes very efficient. We can also export the test cases we create and share t...
What do you like most about Postman?
The product is easy to implement.
What is your experience regarding pricing and costs for Postman?
Postman is much cheaper than the other tools. I am not aware of the current pricing for Postman because that's taken care of by the client; we just pay and they simply create options. On a per-pers...
 

Overview

 

Sample Customers

JetBlue, Payless ShoeSource, Hilton Inc., StubHub, Symantec, Newegg, Sapient, AstraZeneca, Dell, Quest Diagnostics
PayPal, Shopify, Microsoft, Adobe, Atlassian, Twitter, BestBuy, Coursera
Find out what your peers are saying about AlertSite vs. Postman Enterprise and other solutions. Updated: December 2025.
880,954 professionals have used our research since 2012.